JP5060261B2 - Powder amount detection device, developing device, process cartridge, and image forming apparatus - Google Patents

Powder amount detection device, developing device, process cartridge, and image forming apparatus Download PDF

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JP5060261B2
JP5060261B2 JP2007309135A JP2007309135A JP5060261B2 JP 5060261 B2 JP5060261 B2 JP 5060261B2 JP 2007309135 A JP2007309135 A JP 2007309135A JP 2007309135 A JP2007309135 A JP 2007309135A JP 5060261 B2 JP5060261 B2 JP 5060261B2
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developer
detection electrode
detection
electrode
powder
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JP2008139883A (en
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リィウ ハイリアン
シエ ジンミン
ユアヌ ホォンハイ
ヤン チョアヌイ
剛 吉村
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Ricoh Co Ltd
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Description

本発明は、粉体収納容器内の粉体の量を検出する粉体量検出装置並びに該装置を備える現像装置、プロセスカートリッジ及び画像形成装置に関し、具体的に、現像剤が収納される収納容器内の現像剤の残量を検出する現像剤残量検出装置及び電子写真方式画像形成装置に関する。   The present invention relates to a powder amount detection device that detects the amount of powder in a powder storage container, a developing device including the device, a process cartridge, and an image forming apparatus. Specifically, the storage container stores a developer. The present invention relates to a developer remaining amount detecting device and an electrophotographic image forming apparatus for detecting the remaining amount of developer in the inside.

周知のように、電子写真方式の画像形成装置には、プリンタ、複写機、ファクシミリ装置などがある。電子写真方式の画像形成は、潜像を像担持体上にレーザービームなどによって形成し、現像装置によって潜像を現像し像担持体に現像剤像を形成し、そして、その現像剤像を転写装置によって記録媒体に転写し、その後、記録媒体に転写された現像剤像を定着装置で定着することにより行われる。なお、本発明は粉体収納容器内の粉体の量を検出する技術に関するものであり、粉体は現像剤に限定したものではないが、以下、説明の便宜のために粉体を現像剤とし、本発明の説明を行う。   As is well known, electrophotographic image forming apparatuses include printers, copiers, and facsimile machines. In electrophotographic image formation, a latent image is formed on an image carrier with a laser beam or the like, the latent image is developed by a developing device to form a developer image on the image carrier, and the developer image is transferred. The image is transferred to a recording medium by an apparatus, and then the developer image transferred to the recording medium is fixed by a fixing device. Note that the present invention relates to a technique for detecting the amount of powder in a powder container, and the powder is not limited to a developer. The present invention will be described.

このような電子写真方式の画像形成装置には、像担持体に形成された潜像を現像するために、現像剤を供給する現像剤供給装置が使用される。このような現像剤供給装置において、現像剤を収納する現像剤容器が設けられる。   In such an electrophotographic image forming apparatus, a developer supply apparatus that supplies a developer is used to develop the latent image formed on the image carrier. In such a developer supply apparatus, a developer container for storing the developer is provided.

現像剤は画像形成装置によって画像が形成される度に消費される。しかし、その消費量は、形成される画像の内容によって大きく異なり、同じ枚数の画像を形成しても、消費された現像剤の量は異なる。   The developer is consumed every time an image is formed by the image forming apparatus. However, the amount of consumption varies greatly depending on the content of the image to be formed. Even when the same number of images are formed, the amount of developer consumed is different.

そのため、現像剤容器には、通常、現像剤容器内の現像剤の量を検出する現像剤量検出装置が設けられる。   Therefore, the developer container is usually provided with a developer amount detection device that detects the amount of the developer in the developer container.

例えば、特許文献1には、現像剤容器内に設置される現像剤攪拌器を駆動する駆動装置の回転トルク、回転数、角速度及び駆動装置に与えられた電流値の変化を検出することによって、現像剤容器内の現像剤の残量を検出する方法が開示されている。図113及び図114は、その内容を示した図である。図113に示されているように、攪拌部58は現像剤攪拌用モータ117によって回転し、攪拌現像剤容器24内の現像剤を攪拌する。電力が現像剤攪拌用電源115によってモータ117に供給される。図114に示されているグラフには、縦軸が電流検知コントローラ116によって検出された現像攪拌用モータ117に与えられる電流値であり、横軸が時間である。その図は現像剤容器内の現像剤8がある時、及び、無い時の状態を示すものである。現像剤8がある場合、攪拌部材58を回転させると、現像剤の抵抗を受けるため、現像剤攪拌用モータ117に与えられる電流値が大きくなる。攪拌部材58は、半円筒形の現像剤容器の中の現像剤8を攪拌し、現像剤容器の上部に到達する時、現像剤8の抵抗を受けることがなくなるので、現像剤攪拌用モータ117に与えられる電流値が小さくなり、図114に示すようなパルス波形aが形成される。現像剤8が無くなると、図114のbに示すように、パルス波形が無くなり、現像剤8が無いと判定される。   For example, in Patent Document 1, by detecting changes in rotational torque, rotational speed, angular velocity, and current value applied to the drive device of a drive device that drives a developer agitator installed in the developer container, A method for detecting the remaining amount of developer in a developer container is disclosed. 113 and 114 are diagrams showing the contents. As shown in FIG. 113, the stirring unit 58 is rotated by the developer stirring motor 117 to stir the developer in the stirring developer container 24. Electric power is supplied to the motor 117 by the developer stirring power source 115. In the graph shown in FIG. 114, the vertical axis represents the current value supplied to the development stirring motor 117 detected by the current detection controller 116, and the horizontal axis represents time. The figure shows the state when the developer 8 in the developer container is present and when it is not present. When the developer 8 is present, when the stirring member 58 is rotated, the resistance of the developer is received, so that the current value supplied to the developer stirring motor 117 increases. The agitating member 58 agitates the developer 8 in the semi-cylindrical developer container and does not receive the resistance of the developer 8 when reaching the upper part of the developer container. As a result, the pulse waveform a as shown in FIG. 114 is formed. When the developer 8 runs out, as shown in FIG. 114 b, the pulse waveform disappears and it is determined that there is no developer 8.

また、特許文献2には、図115に示すように、現像剤攪拌器58を駆動する駆動装置61の回転トルクをトルク検出器によって測定し、トルク検出器からの検出信号を演算回路118に出力し、演算回路で予め記憶されたトルク測定値と現像剤の残量との関係から現像剤の残量を検出し、現像剤の残量を得る方法が開示されている。   In Patent Document 2, as shown in FIG. 115, the rotational torque of the driving device 61 that drives the developer agitator 58 is measured by a torque detector, and a detection signal from the torque detector is output to the arithmetic circuit 118. A method is disclosed in which the remaining amount of developer is detected by detecting the remaining amount of developer from the relationship between the torque measurement value stored in advance in the arithmetic circuit and the remaining amount of developer.

さらに、特許文献3には、図116及び図117に示されたように、現像剤容器24の内部に設けられる現像剤検出用電極65が、現像剤検出用電極65と弾性的に接続される導電部材と共に現像剤攪拌部材58を構成し、攪拌しながら移動し、現像剤容器24の内部の現像剤検出用電極66と摺接し、現像剤の残量を検出する方法が開示された。   Further, in Patent Document 3, as shown in FIGS. 116 and 117, the developer detection electrode 65 provided inside the developer container 24 is elastically connected to the developer detection electrode 65. A method has been disclosed in which the developer stirring member 58 is configured together with the conductive member, moves while stirring, is brought into sliding contact with the developer detection electrode 66 inside the developer container 24, and the remaining amount of developer is detected.

しかし、特許文献1に開示された装置において、攪拌装置を駆動する駆動モータの電流値を検出するために、電流検出コントローラが必要となり、装置が複雑化になり、また、部品点数の増加及び検出用電力の増加なども招いていた。   However, in the apparatus disclosed in Patent Document 1, a current detection controller is required to detect the current value of the drive motor that drives the stirring apparatus, which complicates the apparatus, and increases and detects the number of parts. Increases in power usage were also invited.

また、特許文献2に開示された装置においても、駆動装置の回転トルクを測定するトルク検出器及びトルク検出器から出力された検出信号を演算回路に出力し、予め記憶されたトルク測定値と現像剤の残量との関係に基づいて計算を行うので、特許文献1と同様に、装置が複雑化になり、また、部品点数の増加及び検出用電力の増加も招いていた。   Also in the apparatus disclosed in Patent Document 2, a torque detector that measures the rotational torque of the drive device and a detection signal output from the torque detector are output to an arithmetic circuit, and a torque measurement value stored in advance and development are output. Since the calculation is performed based on the relationship with the remaining amount of the agent, similarly to Patent Document 1, the apparatus becomes complicated, and the number of components and the detection power increase.

また、特許文献3に開示された装置において、現像剤容器内部だけで現像剤検出用電極を設けるので、攪拌装置自体が不具合を発生した原因で電極が通電しないか、現像剤の原因で電極が通電しないかを判別することが不可能であり、現像剤が実際に無いことにもかかわらず、現像剤があると判断してしまい。よって、このような装置は、現像剤の量の検出装置として信頼性が欠け、ユーザにとって、安心して使用できるものではない。
実開昭61−132858号公報 特開2004−46011号公報 特開2005−195791号公報
Further, in the apparatus disclosed in Patent Document 3, since the developer detection electrode is provided only inside the developer container, the electrode is not energized due to the failure of the stirrer itself, or the electrode is removed due to the developer. It is impossible to determine whether the power is not supplied, and it is determined that the developer is present despite the fact that the developer is not actually present. Therefore, such a device lacks reliability as a developer amount detection device and cannot be used with confidence for the user.
Japanese Utility Model Publication No. 61-132858 Japanese Patent Laid-Open No. 2004-46011 JP 2005-195791 A

本発明は、前述した従来の問題点に鑑みてなされたものであり、本発明の目的は、粉体収納容器内の粉体の量を検出する粉体量検出装置並びに該装置を備える現像装置、プロセスカートリッジ及び画像形成装置を提供することにある。   The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a powder amount detection device for detecting the amount of powder in a powder container and a developing device including the device. Another object of the present invention is to provide a process cartridge and an image forming apparatus.

上記目的を達成するために、本発明の実施例による粉体量検出装置は、粉体容器の内部に設けられる粉体攪拌装置と、前記粉体攪拌装置の攪拌部材を駆動する駆動力を該攪拌部材に伝達する駆動力伝達部材とを備える粉体量検出装置において、前記駆動力伝達部材の運動を検出する第1の検出装置と、前記粉体攪拌装置における攪拌部材の運動を検出する第2の検出装置と、前記駆動力伝達部材の運動を検出する第1の検出装置によって得られた情報及び前記攪拌部材の運動を検出する第2の検出装置によって得られた情報に基づいて、粉体容器内部の粉体量を判定する判定装置と、を備え、前記判定装置は、前記第1の検出装置によって前記駆動力伝達部材の運動が正常である情報が得られた場合のみ、前記粉体容器内部の粉体量の判定を行うことを特徴とするものである In order to achieve the above object, a powder amount detection device according to an embodiment of the present invention includes a powder agitation device provided inside a powder container and a driving force for driving the agitation member of the powder agitation device. In a powder amount detection device including a driving force transmission member that transmits to a stirring member, a first detection device that detects movement of the driving force transmission member, and a first detection device that detects movement of the stirring member in the powder stirring device. On the basis of the information obtained by the second detection device and the information obtained by the first detection device for detecting the movement of the driving force transmission member and the information obtained by the second detection device for detecting the movement of the stirring member. A determination device for determining the amount of powder in the body container, the determination device only when the first detection device obtains information that the movement of the driving force transmission member is normal. Judging the amount of powder inside the body container Cormorant it is characterized in.

本発明は、粉体収納容器内の粉体の量を検出する粉体量検出装置並びに該装置を備える現像装置、プロセスカートリッジ及び画像形成装置を提供する。本発明による粉体量検出装置は、信頼性が高く、また、装置の煩雑化、部品数の増加及び検出用電力の消費を招くこともない。   The present invention provides a powder amount detection device that detects the amount of powder in a powder container, a developing device including the device, a process cartridge, and an image forming apparatus. The powder amount detection device according to the present invention is highly reliable, and does not cause complication of the device, increase in the number of parts, and consumption of detection power.

以下、図面を参照しながら、本発明を実施するための最良の形態を詳細に説明する。   The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

但し、この実施形態に記載している構成部品の寸法、材質、形状及びそれらの相対的な配置などについては、例として挙げられているが、本発明はそれに限定されず、本発明に対するあらゆる変更は本発明の範囲に属する。
(第一の実施形態)
図1は本発明の実施形態に係る画像形成装置を示す断面図である。また、図2は本発明の実施形態に係る画像形成装置の斜視図である。
(画像形成装置全体の説明)
図1に示す両面印刷用画像形成装置は、像担持体1を備える。その周囲には、その回転方向に従って、像担持体1の表面を均一に帯電させる帯電ローラ(図示せず)、画像情報に基づいてレーザー光11により像担持体1上に静電潜像を形成する光書き込み装置(図示せず)、静電潜像上に現像剤8を付着させて現像剤像として現像化する現像ローラ2、及び、像担持体1上の現像剤像を記録媒体14に転写させる転写ローラ3が順に配置される。
However, the dimensions, materials, shapes, and relative arrangements of the components described in this embodiment are given as examples, but the present invention is not limited thereto, and any modifications to the present invention. Belongs to the scope of the present invention.
(First embodiment)
FIG. 1 is a cross-sectional view showing an image forming apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view of the image forming apparatus according to the embodiment of the present invention.
(Description of the entire image forming apparatus)
The double-sided printing image forming apparatus shown in FIG. 1 includes an image carrier 1. A charging roller (not shown) that uniformly charges the surface of the image carrier 1 according to the rotation direction is formed around it, and an electrostatic latent image is formed on the image carrier 1 by laser light 11 based on image information. An optical writing device (not shown), a developing roller 2 for developing a developer image by attaching the developer 8 on the electrostatic latent image, and the developer image on the image carrier 1 on the recording medium 14 Transfer rollers 3 to be transferred are arranged in order.

本実施形態において、画像形成部の転写ローラ3以外の部品は、プロセスカートリッジを構成する。   In the present embodiment, components other than the transfer roller 3 of the image forming unit constitute a process cartridge.

プロセスカートリッジとは、帯電ローラ、現像ローラのうち少なくとも一つ、及び像担持体を一体的にカートリッジ化し、画像形成装置本体に対して着脱可能とするものである。   The process cartridge is a cartridge in which at least one of a charging roller and a developing roller and an image carrier are integrally formed, and can be attached to and detached from the image forming apparatus main body.

供給部から給送された記録媒体14は、搬送ローラ12などで構成された搬送装置によって画像形成部へ搬送され、転写によって、未定着現像剤像が記録媒体14上に形成される。その後、定着装置16によって、記録媒体14上の現像剤像が定着され、画像が形成された記録媒体14は記録媒体積載部18に搬送されて積載される。
(画像形成部)
像担持体1は感光体ドラムで構成され、アルミニウム製円筒体の外周面に光導電体層が塗布され、その両端がフランジ部材によって回転可能に支持される。そのフランジ部材の一方には、駆動源(図示せず)から駆動力が伝達され、像担持体1は、図1において、反時計回りに回転する。
The recording medium 14 fed from the supply unit is transported to the image forming unit by a transport device constituted by a transport roller 12 and the like, and an unfixed developer image is formed on the recording medium 14 by transfer. Thereafter, the developer image on the recording medium 14 is fixed by the fixing device 16, and the recording medium 14 on which the image is formed is conveyed and stacked on the recording medium stacking unit 18.
(Image forming part)
The image carrier 1 is composed of a photosensitive drum, a photoconductor layer is applied to the outer peripheral surface of an aluminum cylinder, and both ends thereof are rotatably supported by flange members. A driving force is transmitted to one of the flange members from a driving source (not shown), and the image carrier 1 rotates counterclockwise in FIG.

帯電ローラは像担持体1の表面に当接し、電源(図示せず)によって帯電バイアスが印加される。よって、像担持体1の表面が均一に帯電される。   The charging roller is in contact with the surface of the image carrier 1, and a charging bias is applied by a power source (not shown). Therefore, the surface of the image carrier 1 is uniformly charged.

光書き込み装置は、ポリゴンミラー(図示せず)を備え、このポリゴンミラーにレーザー発振ユニット(図示せず)から画像信号に応じて発振されたレーザー光11が照射される。   The optical writing device includes a polygon mirror (not shown), and laser light 11 oscillated according to an image signal from a laser oscillation unit (not shown) is irradiated onto the polygon mirror.

電源(図示せず)から現像ローラ2に現像バイアス電圧を印加することにより、現像ローラ2は、像担持体1と接触しながら回転する。現像剤はプロセスカートリッジ内部に収納される。   By applying a developing bias voltage to the developing roller 2 from a power source (not shown), the developing roller 2 rotates while being in contact with the image carrier 1. The developer is stored in the process cartridge.

電源(図示せず)から転写ローラ3に転写バイアス電圧を印加し、像担持体1の静電潜像を現像し、転写ローラ3に正電圧を印加することにより、負電荷を帯びた現像剤は、現像剤を記録媒体14に転写される。
(定着部)
定着部16では、熱源(図示せず)を内包した加熱ローラと弾性部材加圧ローラで記録媒体14を挟み、搬送し、熱及び圧力をかけて記録媒体14上に形成された未定着現像剤像を定着させる。
By applying a transfer bias voltage from a power source (not shown) to the transfer roller 3, developing the electrostatic latent image on the image carrier 1, and applying a positive voltage to the transfer roller 3, a negatively charged developer. The developer is transferred to the recording medium 14.
(Fixing part)
In the fixing unit 16, an unfixed developer formed on the recording medium 14 is formed by sandwiching and conveying the recording medium 14 between a heating roller including a heat source (not shown) and an elastic member pressure roller, and applying heat and pressure. Fix the image.

以下、現像剤の量の検出過程を説明する。   Hereinafter, the process of detecting the amount of developer will be described.

図3のフローチャートを参照して、本発明の実施形態の現像剤の検出方法を説明する。   With reference to the flowchart of FIG. 3, the developer detection method of the embodiment of the present invention will be described.

図3は本発明における粉体の量の検出及びその検出結果の告知の過程を示すフローチャートである。   FIG. 3 is a flowchart showing the process of detecting the amount of powder and notifying the detection result in the present invention.

図3に示されたように、まず、粉体攪拌部材を駆動する駆動力伝達部材の運動が正常であるか否かを判断する(S101)。駆動力伝達部材の運動が正常ではないと判断されると、粉体(ここで、現像剤である)の量の検出が不可能と確定され、その旨がユーザに告知され、現像剤の量の検出作業は停止される(S105)。   As shown in FIG. 3, first, it is determined whether or not the movement of the driving force transmission member that drives the powder agitating member is normal (S101). If it is determined that the movement of the driving force transmission member is not normal, it is determined that the amount of powder (here, developer) cannot be detected, and that is notified to the user, and the amount of developer. Is stopped (S105).

また、S101において駆動力伝達部材の運動が正常であると判断された場合、粉体攪拌装置の攪拌部材の運動を検出する(S102)。粉体攪拌装置の攪拌部材の運動状態により、粉体の量を検出する(S103)。検出された粉体の量がユーザに告知される(S104)。   Further, when it is determined in S101 that the movement of the driving force transmission member is normal, the movement of the stirring member of the powder stirring apparatus is detected (S102). The amount of powder is detected based on the motion state of the stirring member of the powder stirring device (S103). The user is notified of the detected amount of powder (S104).

以上の過程は、本発明における現像剤の検出方法の基本的なものである。   The above process is the basic one of the developer detection method in the present invention.

次に現像剤量検出装置及びその周辺機の制御を説明する。   Next, control of the developer amount detection device and its peripheral devices will be described.

本実施形態の現像剤量検出装置及びその周辺機の制御については、図4の制御ブロック図を参照して説明する。   Control of the developer amount detection device and its peripheral devices according to this embodiment will be described with reference to the control block diagram of FIG.

図4は、本実施形態の現像剤量検出装置及びその周辺機の制御ブロック図である。   FIG. 4 is a control block diagram of the developer amount detection device and its peripheral devices according to this embodiment.

図4に示されたように、情報のやり取りが、粉体容器49を中心として、粉体攪拌装置制御装置44、粉体量判定装置50、粉体量検出用電源43、粉体の使用装置45との間で互いに行われる。   As shown in FIG. 4, the exchange of information is centered on the powder container 49, the powder agitator control device 44, the powder amount determination device 50, the powder amount detection power source 43, and the powder use device. 45 to each other.

粉体容器内の粉体の攪拌開始タイミング、停止タイミング及び期間などが、粉体攪拌装置制御装置44によって制御される。   The powder agitation start timing, stop timing, period, and the like of the powder in the powder container are controlled by the powder agitation apparatus controller 44.

また、粉体検出用電源43は、粉体の量の検出に必要な電力を供給し、さらに、上記電力供給の開始タイミング、停止タイミング及び期間なども制御する。   The power source 43 for detecting powder supplies power necessary for detecting the amount of powder, and further controls the start timing, stop timing, and period of the power supply.

粉体量検出装置は、粉体容器内の粉体の量を検出する。   The powder amount detection device detects the amount of powder in the powder container.

本実施例の場合、粉体容器と粉体量判定装置は一体となって構成される。   In the case of the present embodiment, the powder container and the powder amount determination device are configured integrally.

他の実施例の場合、粉体容器と粉体量判定装置が一体に構成され、さらに、粉体攪拌装置制御装置および粉体量検出用電源が設けられる。   In the case of another embodiment, the powder container and the powder amount determination device are integrally configured, and further, a powder agitation device control device and a powder amount detection power source are provided.

粉体容器49は粉体を使用する装置45、例えば電子写真方式の画像形成装置と情報のやり取りを行う。   The powder container 49 exchanges information with an apparatus 45 that uses powder, for example, an electrophotographic image forming apparatus.

前記粉体を使用する装置(例えば画像形成装置)45は、着脱検出装置48と情報のやり取りを行い、粉体容器の有無、装着の開始時刻及び離脱時刻などの情報を把握する。   An apparatus (for example, an image forming apparatus) 45 that uses the powder exchanges information with the attachment / detachment detection device 48 and grasps information such as the presence / absence of a powder container, the start time of attachment, and the separation time.

前記時間情報は、タイマー47によって管理される。   The time information is managed by a timer 47.

このような構成によって、本発明の検出用電極に電圧が連続的に印加されることが可能であるが、本発明はこれに限りなく、例えば、検出用電極に電圧が粉体攪拌時のみ印加されることも可能である。さらに、電圧は、前記粉体容器が粉体を使用する装置に装着される時のみ検出用電極に印加されることも可能である。また、電圧が所定の間隔をおいた時間帯のみ検出用電極に印加されることも可能である。また、前記粉体容器が粉体を使用する装置に装着された時から所定の時間の間、及び/又は、前記粉体容器内の粉体がなくなりそうだと判断した時から粉体がないと前記検出装置が検出した時までの間において、検出用電極に電圧が印加されることも可能である。   With such a configuration, it is possible to continuously apply a voltage to the detection electrode of the present invention. However, the present invention is not limited to this. For example, the voltage is applied to the detection electrode only during powder agitation. It is also possible. Further, the voltage can be applied to the detection electrode only when the powder container is mounted on a device using powder. It is also possible to apply a voltage to the detection electrode only during a time period having a predetermined interval. In addition, there is no powder for a predetermined time from when the powder container is mounted on a device using powder, and / or when it is determined that the powder in the powder container is likely to run out. A voltage may be applied to the detection electrode until the detection device detects it.

前記画像形成装置は、操作盤を有し、ユーザは、その操作盤を操作することにより粉体の量の検出に関する様々な操作を実現することができる。   The image forming apparatus has an operation panel, and the user can realize various operations related to detection of the amount of powder by operating the operation panel.

次に、現像剤量の検出における電極の通電状態を説明する。   Next, the energization state of the electrode in the detection of the developer amount will be described.

図5は、本発明の検出方法において電極が通電状態である場合を示すものである。   FIG. 5 shows a case where the electrodes are energized in the detection method of the present invention.

図5に示すように、本発明実施形態において、2つの通電回路が存在する。   As shown in FIG. 5, in the embodiment of the present invention, there are two energization circuits.

一つは、現像剤攪拌装置駆動力伝達運動検出用第1の検出電極53と、現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54と、通電判定器A51とによって構成される現像剤攪拌装置駆動力伝達軸運動検出用電気回路である。   One is composed of a first detection electrode 53 for detecting the developer agitation device driving force transmission motion, a second detection electrode 54 for detecting the developer agitation device driving force transmission motion, and an energization determiner A51. 3 is an electric circuit for detecting a driving force transmission shaft motion of a developer stirring device.

もう一つは、現像剤攪拌部材運動検出用第1の検出電極55と、現像剤攪拌部材運動検出用第2の検出電極56と、通電判定器B52とによって構成される現像剤攪拌部材運動検出用電気回路である。   The other is a developer agitation member motion detection constituted by a first detection electrode 55 for detecting the developer agitation member motion, a second detection electrode 56 for detecting the developer agitation member motion, and an energization determination device B52. Electric circuit.

この二つの電気回路の状態が粉体量判定装置50に入力され、粉体量が検出され、その結果が判定結果告知装置57に送られ、ユーザに告知される。   The states of the two electric circuits are input to the powder amount determination device 50, the amount of powder is detected, and the result is sent to the determination result notification device 57 and notified to the user.

粉体量判定装置における基本的な判定方法は、図3のフローチャートによって説明されたが、次に、図6を参照して、本発明の実施形態における現像剤の量の判定過程をさらに詳細に説明する。   The basic determination method in the powder amount determination apparatus has been described with reference to the flowchart of FIG. 3. Next, with reference to FIG. 6, the developer amount determination process in the embodiment of the present invention will be described in more detail. explain.

図6は電極が通電状態である場合の粉体の量の検出過程のフローチャートである。   FIG. 6 is a flowchart of the process of detecting the amount of powder when the electrode is in an energized state.

図6に示されたように、まず、通電判定器A(攪拌装置駆動力伝達装置運動検出電極用)は通電しているか否かを判定する(S201)。通電がしない場合、現像剤攪拌装置が正常に動作しないことを意味し、現像剤の量を正常に検出することは不可能であるので、現像剤検出装置は異常であると判断し、検出を停止する(S202)。また、通電がしている場合、現像剤攪拌装置が正常に動作することを意味し、通電判定器B(攪拌装置運動検出電極用)は通電しているか否かを判定する(S203)。通電がしない場合、現像容器内の現像剤が十分あることを意味するので、粉体があると判断する(S204)。また、通電している場合、粉体が無いことを意味するので、粉体がないと判断し、処理を終了する(S205)。   As shown in FIG. 6, first, it is determined whether the energization determination device A (for the stirring device driving force transmission device motion detection electrode) is energized (S201). When power is not supplied, it means that the developer agitation device does not operate normally, and since it is impossible to detect the amount of developer normally, it is determined that the developer detection device is abnormal and detection is not performed. Stop (S202). Further, when energized, it means that the developer agitating device operates normally, and the energization determining device B (for the agitator motion detection electrode) determines whether or not it is energized (S203). If no power is supplied, it means that there is sufficient developer in the developing container, and it is determined that there is powder (S204). Further, when energized, it means that there is no powder, so it is determined that there is no powder, and the process ends (S205).

このような過程を経て、現像容器内の粉体(現像剤)の量を検出する。   Through this process, the amount of powder (developer) in the developing container is detected.

以下、図7、図8及び図9を参照して、本発明の実施形態の構成を説明する。   Hereinafter, the configuration of the embodiment of the present invention will be described with reference to FIGS. 7, 8, and 9.

図7は現像剤容器の分解図を斜視図で示したものである。図7に示されたように、現像剤容器は、プロセスカートリッジ取手10、現像剤攪拌装置駆動力伝達ギア26、通電判定器(攪拌装置搬送検出電極用)52(図示せず)、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53、現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54、現像剤攪拌部材運動検出用第1の検出電極55、現像剤攪拌部材運動検出用第2の検出電極56、現像剤攪拌部材58、現像剤攪拌部材固定ネジ59、現像剤容器用軸受け60、攪拌装置駆動力伝達軸61、現像剤容器下部62などによって構成される。図7は現像剤容器の上カバー(図示せず)を取り外した図である。   FIG. 7 is an exploded view of the developer container in a perspective view. As shown in FIG. 7, the developer container includes a process cartridge handle 10, a developer agitation device driving force transmission gear 26, an energization determination device (for agitation device conveyance detection electrode) 52 (not shown), a developer agitation. First detection electrode 53 for detecting device driving force transmission shaft motion, second detection electrode 54 for detecting developer stirring device driving force transmission shaft motion, first detection electrode 55 for detecting developer stirring member motion, developer stirring It is composed of a second detection electrode 56 for detecting member motion, a developer stirring member 58, a developer stirring member fixing screw 59, a developer container bearing 60, a stirring device driving force transmission shaft 61, a developer container lower part 62, and the like. . FIG. 7 is a view in which the upper cover (not shown) of the developer container is removed.

図7に示された各部材を組み立てた図が図9である。図9は現像剤容器の上カバーを取り外した状態の斜視図である。該図には、現像剤が図示されない。   FIG. 9 is a diagram in which the respective members shown in FIG. 7 are assembled. FIG. 9 is a perspective view of the developer container with the upper cover removed. The developer is not shown in the figure.

図9では、現像剤容器の底部に設置される現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54と現像剤攪拌部材運動検出用第2の検出電極56が見えないが、図8では、その二つの部材の装着状態を示す。図8は、現像剤容器上に設置される電極の斜視図である。   In FIG. 9, the developer agitator driving force transmission shaft motion detection second detection electrode 54 and the developer agitator member motion detection second detection electrode 56 installed at the bottom of the developer container cannot be seen. In FIG. 8, the mounting state of the two members is shown. FIG. 8 is a perspective view of an electrode installed on the developer container.

以下、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53の回転動作の過程を説明する。   Hereinafter, the process of the rotation operation of the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion will be described.

現像剤攪拌装置駆動力伝達軸の運動状態、すなわち、現像剤攪拌装置駆動力伝達軸の運動が正常か否かは、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53によって検出される。   The state of motion of the developer stirring device driving force transmission shaft, that is, whether or not the motion of the developer stirring device driving force transmission shaft is normal is detected by the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion. Is done.

図10は現像剤攪拌装置駆動力伝達軸の運動を検出する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53が現像剤8内で回転する過程を示す断面図である。本発明の実施例において、図10に示すように、現像剤容器24に十分な現像剤8が収納されており、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53が攪拌装置駆動力伝達軸61によって駆動され、前記現像剤内で回転する。現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53は、現像剤8を掻き分けて進み回転する。回転中心は、現像剤攪拌装置駆動力伝達軸と同一である。この実施例の場合、現像剤の排出口が現像剤容器24の左側に位置し、前記第1の検出電極53が反時計回りに回転するが、その回転方向は現像剤の量の検出とは無関係であるので、前記検出電極53が時計回りに回転しても、現像剤の量が検出できる。   FIG. 10 is a cross-sectional view illustrating a process in which the developer agitator driving force transmission shaft motion detection first detection electrode 53 for detecting the motion of the developer agitator driving force transmission shaft rotates in the developer 8. In the embodiment of the present invention, as shown in FIG. 10, sufficient developer 8 is accommodated in the developer container 24, and the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion is the stirring device. It is driven by the driving force transmission shaft 61 and rotates within the developer. The first detection electrode 53 for detecting the driving force transmission shaft motion of the developer agitating device scrapes the developer 8 and rotates. The rotation center is the same as the developer stirring device driving force transmission shaft. In this embodiment, the developer discharge port is located on the left side of the developer container 24, and the first detection electrode 53 rotates counterclockwise. The rotation direction is the detection of the amount of developer. Since it is irrelevant, the amount of developer can be detected even if the detection electrode 53 rotates clockwise.

図11は、前記第1の検出電極53が現像剤8内で回転して、現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54に接近する状態を示す現像剤容器24の断面図である。   FIG. 11 is a cross-sectional view of the developer container 24 showing a state where the first detection electrode 53 rotates in the developer 8 and approaches the second detection electrode 54 for detecting the developer stirring device driving force transmission shaft motion. FIG.

図12は、前記第1の検出電極53が現像剤8内で回転して、現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54に接触し、通電している状態を示す現像剤容器24の断面図である。このようにして、現像剤攪拌装置駆動力伝達軸が正常に回転していれば、図12に示すように、通電状態が発生する。現像剤攪拌装置駆動力伝達軸が変形したり、折れたりして、駆動力が与えられなく回転しなければ、通電状態が発生しない。または、通電状態が継続してしまう。このように、本発明の第一実施形態において、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53が、現像剤攪拌装置駆動力伝達軸運動検出用第二の検出電極54に一定周期で接触すると、一定周期で通電状態が発生して、現像剤攪拌装置駆動力伝達軸運動が正常に行っていることを意味する。それ以外の状態は、何らかの不具合が発生していることを意味する。   FIG. 12 shows the development in which the first detection electrode 53 rotates in the developer 8, contacts the developer stirring device driving force transmission shaft motion detection second detection electrode 54, and is energized. FIG. In this way, if the developer stirring device driving force transmission shaft rotates normally, an energized state occurs as shown in FIG. If the developer stirring device driving force transmission shaft is deformed or broken, and no driving force is applied, the energized state does not occur. Or an energization state will continue. As described above, in the first embodiment of the present invention, the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion is replaced with the second detection electrode 54 for detecting the developer stirring device driving force transmission shaft motion. When contact is made at a constant cycle, an energized state is generated at a constant cycle, which means that the developer stirring device driving force transmission shaft motion is normally performed. Any other state means that some trouble has occurred.

図13は現像剤容器24の断面図である。前記第1の検出電極53が現像剤8内で回転し、現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54に接触し、通電し、電極が互いに離れようとしている状態を示す。   FIG. 13 is a cross-sectional view of the developer container 24. The first detection electrode 53 rotates in the developer 8, contacts with the developer detection device driving force transmission shaft motion detection second detection electrode 54, is energized, and shows a state where the electrodes are separated from each other. .

図14は現像剤容器24の断面図である。前記第1の検出電極53が現像剤8内で回転し、現像剤攪拌装置駆動力伝達運動検出用第2の検出電極54に接触し、通電後、電極が互いに離れ、非通電状態を示す。   FIG. 14 is a cross-sectional view of the developer container 24. The first detection electrode 53 rotates in the developer 8 and comes into contact with the second detection electrode 54 for detecting the developer stirring device driving force transmission motion. After energization, the electrodes are separated from each other, indicating a non-energized state.

このように、本発明の第一実施形態において、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53の動作を実行して、現像剤攪拌装置駆動力伝達軸の運動を検出する。   As described above, in the first embodiment of the present invention, the operation of the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion is executed to detect the motion of the developer stirring device driving force transmission shaft. .

以下、図15−図19に基づいて、本発明の第一実施形態において、可撓性部材で構成された現像剤攪拌部材運動検出用第1の検出電極55が、現像剤容器の中の現像剤が無いまたはほぼ無い状態での動作の過程を説明する。   Hereinafter, based on FIGS. 15 to 19, in the first embodiment of the present invention, the first detection electrode 55 for detecting the movement of the developer stirring member made of a flexible member is developed in the developer container. The process of operation with no or almost no agent will be described.

図15は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55が現像剤容器内で回転する状態を示す。同図に示すように、現像剤攪拌部材運動検出用第1の検出電極55は、可撓性部材で構成され、現像剤8内で回転し攪拌する。現像剤容器内には現像剤がほぼない。回転中心は現像剤攪拌装置駆動力伝達軸と同一である。この実施例の場合、現像剤の排出口が現像剤容器24の左側に位置し、現像剤攪拌部材運動検出用第1の検出電極55が反時計方向に回転する。現像剤攪拌動作は、攪拌機能だけではなく、現像剤の供給機能にも関係する。図示の実施例の場合、攪拌回転方向は反時計方向に回転することが望ましいが、本発明はこれに限らず、攪拌回転方向と関係ない。回転方向と関係なしの現像剤供給機構を別途に設置すれば、攪拌の回転方向は、反時計回りであるか時計回りであるかと問わない。   FIG. 15 is a cross-sectional view of the developer container 24. The state where the first detection electrode 55 for detecting the movement of the developer stirring member rotates in the developer container is shown. As shown in the drawing, the first detection electrode 55 for detecting the movement of the developer stirring member is composed of a flexible member, and rotates and stirs in the developer 8. There is almost no developer in the developer container. The rotation center is the same as the developer stirring device driving force transmission shaft. In this embodiment, the developer discharge port is positioned on the left side of the developer container 24, and the first detection electrode 55 for detecting the developer agitating member motion rotates counterclockwise. The developer stirring operation is related not only to the stirring function but also to the developer supply function. In the case of the illustrated embodiment, it is desirable that the stirring rotation direction is rotated counterclockwise, but the present invention is not limited to this, and is not related to the stirring rotation direction. If a developer supply mechanism not related to the rotation direction is separately provided, the rotation direction of the stirring does not matter whether it is counterclockwise or clockwise.

図16は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55が現像剤容器内で回転し、現像剤攪拌部材運動検出用第2の検出電極56に接触する状態を示す。現像剤容器24内に現像剤がほぼない場合、現像剤が現像剤攪拌部材運動検出用第1の検出電極に与える抵抗が無いため、現像剤攪拌部材運動検出用第1の検出電極55は、撓みが少なくまたはなく、現像剤攪拌部材運動検出用第2の検出電極56に接触し、通電状態となる。このように、現像剤容器24に現像剤がなくなったことが知らされる。
図17は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55が現像剤容器内で回転し、現像剤攪拌部材運動検出用第2の検出電極56に接触し、通電している状態を示す。このように、通電は一瞬間ではなく、現像剤攪拌部材運動検出用第1の検出電極55が現像剤攪拌部材運動検出用第2の検出電極56に接触している間、通電状態を保ち、現像剤攪拌部材運動検出用第2検出電極56の大小に左右される。
図18は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55が現像剤容器24内で回転し、現像剤攪拌部材運動検出用第2の検出電極56に接触し、通電し、電極が互いに離れようとする状態を示す。
図19は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55が現像剤容器内で回転し、現像剤攪拌部材運動検出用第2の検出電極56に接触し、通電後、電極が互いに離れ、非通電状態となることを示す。このように、現像剤容器24に現像剤が無い場合、現像剤攪拌部材運動検出用第1の検出電極55が現像剤容器24内で一回転する間に一回ほど、一定期間、通電状態となり、これを繰り返し行う。この状態を現像剤量判定装置によって認識され、現像剤なしの判定を下し、ユーザにその旨を知らせる。
FIG. 16 is a cross-sectional view of the developer container 24. The first detection electrode 55 for detecting the developer agitating member motion is rotated in the developer container and is in contact with the second detecting electrode 56 for detecting the developer agitating member motion. When there is almost no developer in the developer container 24, the developer has no resistance to the first detection electrode for detecting the developer agitating member motion. Therefore, the first detection electrode 55 for detecting the developer agitating member motion is: There is little or no bending, and the developer agitating member motion detection second detection electrode 56 is brought into contact with the energized state. In this way, it is notified that the developer container 24 has run out of developer.
FIG. 17 is a cross-sectional view of the developer container 24. The first detection electrode 55 for detecting the developer agitating member motion is rotated in the developer container, is in contact with the second detecting electrode 56 for detecting the developer agitating member motion, and is energized. Thus, the energization is not instantaneous, but the energized state is maintained while the first detection electrode 55 for detecting the developer agitating member motion is in contact with the second detection electrode 56 for detecting the developer agitating member motion, It depends on the size of the second detection electrode 56 for detecting the movement of the developer stirring member.
FIG. 18 is a cross-sectional view of the developer container 24. The first detection electrode 55 for detecting the developer agitating member motion rotates in the developer container 24, contacts the second detecting electrode 56 for detecting the developer agitating member motion, is energized, and the electrodes tend to separate from each other Indicates the state.
FIG. 19 is a cross-sectional view of the developer container 24. The first detection electrode 55 for detecting the developer agitating member motion rotates in the developer container and contacts the second detecting electrode 56 for detecting the developer agitating member motion. Indicates that As described above, when there is no developer in the developer container 24, the developer agitating member motion detection first detection electrode 55 is energized for a certain period of time during one rotation in the developer container 24. Repeat this. This state is recognized by the developer amount determination device, and it is determined that there is no developer, and this is notified to the user.

以下、図20−図24を参照して、本発明の第一実施形態において、現像剤容器内の現像剤が多くある状態で、可撓性部材で構成された現像剤攪拌部材運動検出用第1の検出電極55の動作の過程を説明する。   Hereinafter, with reference to FIGS. 20 to 24, in the first embodiment of the present invention, in the state where there is a lot of developer in the developer container, the developer agitation member motion detection second composed of a flexible member is used. A process of operation of one detection electrode 55 will be described.

図20は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55が、現像剤8の中で撓みながら回転する状態を示す。現像剤容器30に現像剤がある場合、可撓性部材で構成された現像剤攪拌部材運動検出用第1の検出電極55は、現像剤の抵抗を受け、撓んでしまう。   FIG. 20 is a cross-sectional view of the developer container 24. The state where the first detection electrode 55 for detecting the movement of the developer stirring member rotates while being bent in the developer 8 is shown. When there is a developer in the developer container 30, the first detection electrode 55 for detecting the movement of the developer stirring member made of a flexible member receives the resistance of the developer and bends.

図21は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55は、現像剤8の中で回転し、現像剤攪拌部材運動検出用第2の検出電極56に接触しようとするが、可撓性部材であるため、現像剤の抵抗を受けて撓んでしまい、現像剤攪拌部材運動検出用第2の検出電極56に接触できず、非通電状態となることを示す。   FIG. 21 is a cross-sectional view of the developer container 24. The first detection electrode 55 for detecting the developer stirring member motion rotates in the developer 8 and tries to contact the second detection electrode 56 for detecting the developer stirring member motion, but is a flexible member. Therefore, it is bent due to the resistance of the developer, and the developer agitating member motion detection second detection electrode 56 cannot be contacted, indicating a non-energized state.

図22は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55は、現像剤8の中で回転し、現像剤攪拌部材運動検出用第2の検出電極56に接触しようとするが、可撓性部材であるため、現像剤の抵抗を受けて撓んでしまい、現像剤攪拌部材運動検出用第2の検出電極56に接触できず、非通電状態を示す。仮に、現像剤がない場合、撓みがなく、現像剤攪拌部材運動検出用第1の検出電極55は、現像剤8の中で回転し、現像剤攪拌部材運動検出用第2の検出電極56に接触する。   FIG. 22 is a cross-sectional view of the developer container 24. The first detection electrode 55 for detecting the developer stirring member motion rotates in the developer 8 and tries to contact the second detection electrode 56 for detecting the developer stirring member motion, but is a flexible member. Therefore, the developer is bent due to the resistance of the developer, and cannot contact the second detection electrode 56 for detecting the movement of the developer stirring member, indicating a non-energized state. If there is no developer, there is no deflection, and the first detection electrode 55 for detecting the developer agitating member motion rotates in the developer 8, and the second detecting electrode 56 for detecting the developer agitating member motion is detected. Contact.

図23は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55は、現像剤8の中で回転し、現像剤攪拌部材運動検出用第2の検出電極56に接触しようとするが、可撓性部材であるため、現像剤の抵抗を受けて撓んでしまい、現像剤攪拌部材運動検出用第2の検出電極56に接触できず、非通電状態を示す。   FIG. 23 is a cross-sectional view of the developer container 24. The first detection electrode 55 for detecting the developer stirring member motion rotates in the developer 8 and tries to contact the second detection electrode 56 for detecting the developer stirring member motion, but is a flexible member. Therefore, the developer is bent due to the resistance of the developer, and cannot contact the second detection electrode 56 for detecting the movement of the developer stirring member, indicating a non-energized state.

図24は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極55は、現像剤攪拌部材運動検出用第2の検出電極56に接触できないまま、回転し、現像剤攪拌部材運動検出用第2の検出電極56から離れる状態を示す。   FIG. 24 is a cross-sectional view of the developer container 24. The first detection electrode 55 for detecting the developer agitating member motion rotates without being in contact with the second detection electrode 56 for detecting the developer agitating member motion, and the second electrode 56 for detecting the developer agitating member motion is rotated. Indicates the state of leaving.

攪拌装置駆動力伝達軸61は、現像剤攪拌部材運動検出用第1の検出電極55の撓みの程度とは関係なく回転するので、現像剤の量はこのような状態である限り、現像剤攪拌部材運動検出用第1の検出電極55が現像剤攪拌部材運動検出用第2の検出電極56に接触することはない。   The stirrer driving force transmission shaft 61 rotates irrespective of the degree of deflection of the developer agitating member motion detection first detection electrode 55. Therefore, as long as the amount of the developer is in such a state, the developer agitating The member detection first detection electrode 55 does not contact the developer stirring member movement detection second detection electrode 56.

本発明の第一実施形態において、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53と現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54が電極対であり、可撓性部材で構成された現像剤攪拌部材運動検出用第1の検出電極55と現像剤攪拌部材運動検出用第2の電極56が電極対である。   In the first embodiment of the present invention, the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion and the second detection electrode 54 for detecting the developer stirring device driving force transmission shaft motion are an electrode pair. The first detection electrode 55 for detecting the motion of the developer agitating member and the second electrode 56 for detecting the motion of the developer agitating member, which are made of a flexible member, are an electrode pair.

以下、図25−図27を参照して、現像剤の量が異なる場合に基づいて、現像剤容器内の現像剤の量と現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53と、現像剤攪拌部材運動検出用第1の検出電極55との関係をさらに詳細に説明し、本発明の第一実施形態における現像剤の量の検出方法を説明する。   Hereinafter, referring to FIG. 25 to FIG. 27, based on the case where the amount of developer is different, the amount of developer in the developer container and the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion. And the developer agitation member motion detection first detection electrode 55 will be described in more detail, and a method for detecting the amount of developer in the first embodiment of the present invention will be described.

図25は現像剤容器24の断面図である。現像剤容器に多くの現像剤がある場合を示す。上記のように、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53は、現像剤の量と関係なく、同じ形状を保ったまま回転し、現像剤容器24の底部に設置された現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54に接触し、通電する。現像剤攪拌部材運動検出用第1検出電極55は、現像剤容器24に多くの現像剤があるため、その形状が変化し、現像剤攪拌部材運動検出用第2の検出電極56に接触しない。   FIG. 25 is a cross-sectional view of the developer container 24. The case where there are many developers in the developer container is shown. As described above, the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion rotates while maintaining the same shape regardless of the amount of the developer, and is installed at the bottom of the developer container 24. The developer agitator driving force transmission shaft motion detection second motion detection electrode 54 is contacted and energized. The developer detection member motion detection first detection electrode 55 has a large amount of developer in the developer container 24, so that its shape changes and does not contact the developer stirring member motion detection second detection electrode 56.

図26は現像剤容器24の断面図である。現像剤容器24に半分以下の現像剤が有する場合を示す。上記のように、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53は、現像剤の量と関係なく、同じ形状を保ったまま回転し、現像剤容器24の底部に設置された現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54に接触し、通電する。現像剤攪拌部材運動検出用第1の検出電極55は、現像剤容器24内の現像剤が図25のより少ないので、その撓み程度も図25のより少なく、現像剤の量によって、現像剤攪拌部材運動検出用第2の検出電極56と接触したり、しなかったりする。   FIG. 26 is a cross-sectional view of the developer container 24. The case where the developer container 24 has less than half of the developer is shown. As described above, the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion rotates while maintaining the same shape regardless of the amount of the developer, and is installed at the bottom of the developer container 24. The developer agitator driving force transmission shaft motion detection second motion detection electrode 54 is contacted and energized. Since the developer in the developer container 24 has less developer in the developer container 24 than in FIG. 25, the first stirring electrode 55 for detecting the motion of the developer agitating member is less bent than in FIG. 25. It may or may not be in contact with the second detection electrode 56 for detecting member motion.

図27は現像剤容器24の断面図である。現像剤容器24に現像剤なしまたはほぼなしの場合を示す。上記のように、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53は、現像剤の量と関係なく、同じ形状を保ったまま回転し、現像剤容器24の底部に設置された現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54に接触し、通電する。現像剤攪拌部材運動検出用第1の検出電極55は、現像剤容器24に現像剤がほぼなくなるため、現像剤攪拌部材運動検出用第2の検出電極56に接触する。   FIG. 27 is a cross-sectional view of the developer container 24. The case where the developer container 24 has no or almost no developer is shown. As described above, the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion rotates while maintaining the same shape regardless of the amount of the developer, and is installed at the bottom of the developer container 24. The developer agitator driving force transmission shaft motion detection second motion detection electrode 54 is contacted and energized. The first detection electrode 55 for detecting the developer agitating member motion comes into contact with the second detecting electrode 56 for detecting the developer agitating member motion because the developer container 24 is almost free of the developer.

これまでに説明した通り、現像剤がなくなると、現像剤攪拌部材運動検出用第1の検出電極55は現像剤攪拌部材運動検出用第2の検出電極56に接触し、通電する。   As described above, when the developer runs out, the first detection electrode 55 for detecting the developer agitating member motion comes into contact with the second detection electrode 56 for detecting the developer agitating member motion and is energized.

以下、図28−図33を参照して、本発明の別の実施形態において、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び、現像剤攪拌部材運動検出用第1の検出電極が、回転し、それぞれに対応する電極と接触する過程および電極の形状を詳しく説明する。   Hereinafter, referring to FIGS. 28 to 33, in another embodiment of the present invention, a developer agitator driving force transmission shaft motion detection first detection electrode and a developer agitator member motion detection first detection The process in which the electrodes rotate and contact with the corresponding electrodes and the shape of the electrodes will be described in detail.

図に示した電極の形状は一例に過ぎず、本発明はこれに限らない。また、上記図には、各電極の接触が点線で表示される。各電極に印加された電圧は5Vと記載されたが、これも一例に過ぎず、本発明はこれらの発明例に限らない。   The shape of the electrode shown in the figure is merely an example, and the present invention is not limited to this. In the above figure, the contact of each electrode is indicated by a dotted line. Although the voltage applied to each electrode is described as 5 V, this is also only an example, and the present invention is not limited to these invention examples.

図28は現像剤攪拌装置駆動力伝達軸運動検出電極および、現像剤攪拌部材運動検出用電極の両方とも、対応する電極と接触せず、通電しない状態を示す図である。   FIG. 28 is a diagram showing a state where neither the developer stirring device driving force transmission shaft motion detection electrode nor the developer stirring member motion detection electrode is in contact with the corresponding electrode and is not energized.

現像剤攪拌装置駆動力伝達運動検出用第1の検出電極53と現像剤攪拌部材運動検出用第1の電極55、それらに対応する検出電極65と66、及び、それぞれの形状とそれぞれの相対的配置は、図28に示すとおりである。   Developer detection device driving force transmission motion detection first detection electrode 53, developer stirring member motion detection first electrode 55, detection electrodes 65 and 66 corresponding to them, and their respective shapes and relative The arrangement is as shown in FIG.

図29は現像剤攪拌装置駆動力伝達運動検出用第1の検出電極53のみ、対応する電極と接触し、通電するが、現像剤攪拌部材運動検出用電極は対応する電極と接触せず、通電もしない状態を示す図である。   In FIG. 29, only the first detection electrode 53 for detecting the developer stirring device driving force transmission motion is in contact with the corresponding electrode and energized. However, the developer stirring member motion detection electrode is not in contact with the corresponding electrode and is energized. It is a figure which shows the state which does not exist.

図29に示すように、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53は、その53a部が対応する電極66と接触し、その53b部が対応する電極65と接触する。そして、電流が66→53a→53b→65のように形成され、通電状態となる。その通電状態の期間はT1範囲にある。   As shown in FIG. 29, the developer agitator driving force transmission shaft motion detection first detection electrode 53 has a 53a portion in contact with the corresponding electrode 66 and a 53b portion in contact with the corresponding electrode 65. Then, the current is formed in the order of 66 → 53a → 53b → 65, and an energized state is established. The period of the energized state is in the T1 range.

図30は現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53及び、現像剤攪拌部材運動検出用第1の検出電極55の両方とも、対応する電極と接触し、通電状態を示す図である。   FIG. 30 shows a state where both the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion and the first detection electrode 55 for detecting the developer stirring member motion are in contact with the corresponding electrodes and are energized. FIG.

図30に示すように、現像剤攪拌装置駆動力伝達運動検出用第1の検出電極53は対応する電極65、66と接触し、現像剤攪拌部材運動検出用第1の検出電極55も対応する電極65と接触する。そして、電流が66→53a→55→65のように形成され、通電状態となる。その通電状態の期間はT2範囲にある。   As shown in FIG. 30, the developer agitator driving force transmission motion detection first detection electrode 53 is in contact with the corresponding electrodes 65 and 66, and the developer agitation member motion detection first detection electrode 55 also corresponds. Contact the electrode 65. Then, the current is formed in the order of 66 → 53a → 55 → 65, and an energized state is established. The period of the energized state is in the T2 range.

図31は図28、図29及び図30に対応する実施例において、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53及び、現像剤攪拌部材運動検出用第1の検出電極55が回転し、それぞれに対応する電極と接触する場合、現像剤の有無を判断する表である。該表に示すように、図28の状態で、現像剤攪拌装置駆動力伝達軸運動検出電極に通電状態が現れないので、現像剤の有無の判定は不能と判断され、前述したように、現像剤検出装置の異常と判断される。   FIG. 31 shows a developer detecting device driving force transmission shaft motion detection first detection electrode 53 and a developer stirring member motion detection first detection electrode 55 in the embodiment corresponding to FIGS. 28, 29 and 30. Is a table for determining the presence or absence of the developer when rotating and contacting with the corresponding electrodes. As shown in the table, in the state of FIG. 28, since the energized state does not appear in the developer stirring device driving force transmission shaft motion detection electrode, it is determined that the presence or absence of the developer is impossible. It is determined that the agent detection device is abnormal.

上記したように、T1は現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53と対応する電極65、66との間、接触・通電する時間である。T2は現像剤攪拌部材運動検出用第1の検出電極55と対応する検出電極65、66との間、接触・通電する時間である。   As described above, T1 is the time for contact / energization between the developer agitator driving force transmission shaft motion detection first detection electrode 53 and the corresponding electrodes 65, 66. T2 is the time for contact / energization between the first detection electrode 55 for detecting the movement of the developer stirring member and the corresponding detection electrodes 65, 66.

図31に示されたように、出力信号が比較的短いT1の間のみ、ONとなる場合は、現像剤ありと判定される。出力信号は比較的長いT2の間、ONとなる場合は、現像剤なしと判定される。その現像剤の有無の検出手段は、これまでに説明した通りである。   As shown in FIG. 31, when the output signal is ON only during a relatively short T1, it is determined that there is a developer. If the output signal is ON for a relatively long T2, it is determined that there is no developer. The means for detecting the presence or absence of the developer is as described above.

図32は上記図28−図30における現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53および、現像剤攪拌部材運動検出用第1の検出電極55と、それぞれ対応する検出電極65、66が現像剤容器内での構成の一部を示す斜視図である。   FIG. 32 shows the first detection electrode 53 for detecting the developer agitator driving force transmission shaft motion, the first detection electrode 55 for detecting the motion of the developer agitating member, and the corresponding detection electrode 65 in FIGS. , 66 are perspective views showing a part of the configuration in the developer container.

図33は上記図28−図33における現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53および、現像剤攪拌部運動検出用第1の検出電極55と、それぞれに対応する電極65、66が現像剤容器内での構成を示す平面図である。(現像剤容器の底部に配置された電極は図示されない)
以下、図34−図46を参照して、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53、現像剤攪拌部運動検出用第1の検出電極55と、それぞれに対応する電極54、56に対する電圧の印加方式、および電極の形状を説明する。
FIG. 33 shows the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion and the first detection electrode 55 for detecting the motion of the developer stirring portion in FIGS. 28 to 33, and the electrode 65 corresponding to each of them. 66 are plan views showing the configuration in the developer container. (The electrode arranged at the bottom of the developer container is not shown)
34 to 46, the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion, the first detection electrode 55 for detecting the developer stirring portion motion, and the electrodes corresponding thereto, respectively. A method of applying a voltage to 54 and 56 and the shape of the electrode will be described.

図34−図46に示された回路は、どれも本発明に適用し、現像剤容器24の形状などによって適切に選択できる。各電極に印加される電圧は5Vと記載されるが、これは一例に過ぎず、この電圧に限るものではない。   Any of the circuits shown in FIGS. 34 to 46 is applicable to the present invention, and can be appropriately selected depending on the shape of the developer container 24. Although the voltage applied to each electrode is described as 5V, this is only an example and is not limited to this voltage.

図34に示すように、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53、現像剤攪拌部材運動検出用第1の検出電極55に対して、それぞれ5Vの電圧が印加され、それぞれに対応する電極54、56が接地する。   As shown in FIG. 34, a voltage of 5 V is applied to the developer agitator driving force transmission shaft motion detection first detection electrode 53 and the developer agitation member motion detection first detection electrode 55, respectively. The corresponding electrodes 54 and 56 are grounded.

図35に示すように、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53に5Vの電圧が印加され、それに対応する電極54が接地し、現像剤攪拌部材運動検出用第1の検出電極55が接地して、それに対応する電極56に5Vの電圧が印加される。   As shown in FIG. 35, a voltage of 5V is applied to the developer agitator driving force transmission shaft motion detection first detection electrode 53, the corresponding electrode 54 is grounded, and the developer agitation member motion detection first is detected. The detection electrode 55 is grounded, and a voltage of 5 V is applied to the corresponding electrode 56.

図36に示すように、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53が接地し、それに対応する電極54に5Vの電圧が印加され、現像剤攪拌部材運動検出用第1の検出電極55に5Vの電圧が印加され、それに対応する電極56が接地する。   As shown in FIG. 36, the developer agitator driving force transmission shaft motion detection first detection electrode 53 is grounded, and a voltage of 5 V is applied to the corresponding electrode 54 to detect the developer agitation member motion detection first. A voltage of 5 V is applied to the detection electrode 55 and the corresponding electrode 56 is grounded.

図37に示すように、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53が接地し、それに対応する電極54に5Vの電圧が印加され、現像剤攪拌部材運動検出用第1の検出電極55が接地し、それに対応する電極56に5Vの電圧が印加される。   As shown in FIG. 37, the developer agitator driving force transmission shaft motion detection first detection electrode 53 is grounded, and a voltage of 5 V is applied to the corresponding electrode 54 to detect the developer agitation member motion detection first. The detection electrode 55 is grounded, and a voltage of 5 V is applied to the corresponding electrode 56.

図38に示すように、前記対応する電極54が54a、54bによって構成され、それぞれ現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53の53a、53bに対応する。電極54aに5Vの電圧が印加され、電極54bが接地する。現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53は回転され、その53aが54aに接触し、53bが54bに接触するとき、通電状態となる。また、現像剤攪拌部材運動検出用第1の検出電極55が接地し、それに対応する電極56に5Vの電圧が印加される。   As shown in FIG. 38, the corresponding electrodes 54 are constituted by 54a and 54b, and correspond to 53a and 53b of the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion, respectively. A voltage of 5V is applied to the electrode 54a, and the electrode 54b is grounded. The first detection electrode 53 for detecting the driving force transmission shaft motion of the developer agitator is rotated. When the 53a contacts 54a and 53b contacts 54b, the first stirring electrode 53 is energized. The first detection electrode 55 for detecting the movement of the developer stirring member is grounded, and a voltage of 5 V is applied to the corresponding electrode 56.

図39は図38と逆で、現像剤攪拌部材運動検出用第1の検出電極55及びそれに対応する電極56は上記二電極の構成を用いるので、ここでは、詳細な説明を省略する。   FIG. 39 is the reverse of FIG. 38, and the first detection electrode 55 for detecting the motion of the developer agitating member and the corresponding electrode 56 use the above-described two-electrode configuration, and thus detailed description thereof is omitted here.

図40において、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53および、現像剤攪拌部材運動検出用第1の検出電極55はともに上記二電極の構成を用いるので、ここでは、詳細な説明を省略する。   In FIG. 40, the developer agitator driving force transmission shaft motion detection first detection electrode 53 and the developer stirring member motion detection first detection electrode 55 both use the above-described two-electrode configuration. Detailed description is omitted.

図41において、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53および、現像剤攪拌部材運動検出用第1の検出電極55はともに二電極の構成を用いる。現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53に対応する電極が54、67であり、現像剤攪拌部材運動検出用第1の検出電極55に対応する電極が56、67である。電極54、56にそれぞれ5Vの電圧が印加され、電極67が接地する。これにより、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53は、その53aが電極54と接触し、53bが電極67と接触する。そして、54→53a→53b→67のように電流が形成され、通電状態となる。現像剤攪拌部材運動検出用第1の検出電極55は、その55aが電極56と接触し、55bが電極67と接触する。そして、56→55a→53b→67のように電流が形成され、通電状態となる。   In FIG. 41, the developer agitator driving force transmission shaft motion detection first detection electrode 53 and the developer stirring member motion detection first detection electrode 55 both use a two-electrode configuration. 54 and 67 are electrodes corresponding to the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion, and 56 and 67 are electrodes corresponding to the first detection electrode 55 for detecting the developer stirring member motion. is there. A voltage of 5 V is applied to each of the electrodes 54 and 56, and the electrode 67 is grounded. As a result, the developer agitator driving force transmission shaft motion detection first detection electrode 53 has its 53 a in contact with the electrode 54 and 53 b in contact with the electrode 67. Then, a current is formed in the order of 54 → 53a → 53b → 67, and an energized state is established. The first detection electrode 55 for detecting the movement of the developer agitating member has a contact 55a with the electrode 56 and a contact 55b with the electrode 67. Then, a current is formed in the order of 56 → 55a → 53b → 67, and an energized state is established.

図42の構成は図41と同様に、電極68に5Vの電圧が印加され、電極54、56が接地する。ここでは、詳細な説明を省略する。   42, as in FIG. 41, a voltage of 5 V is applied to the electrode 68, and the electrodes 54 and 56 are grounded. Here, detailed description is omitted.

図43において、二つの現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53が設置され、それぞれ5Vの電圧が印加される。また、二つの現像剤攪拌部材運動検出用第1の電極55が設置され、それぞれ5Vの電圧が印加される。電極54、56が接地する。   In FIG. 43, two developer agitator driving force transmission shaft motion detection first detection electrodes 53 are provided, and a voltage of 5 V is applied to each. Two developer agitating member motion detection first electrodes 55 are provided, and a voltage of 5 V is applied to each of them. The electrodes 54 and 56 are grounded.

図44において、図43における電極54と56を合わせて一つの電極69を形成する。そのほかは図43と同様である。   In FIG. 44, the electrodes 54 and 56 in FIG. 43 are combined to form one electrode 69. The rest is the same as FIG.

図45において、図43における電極54、56にそれぞれ5Vの電圧が印加され、二つの現像剤攪拌装置駆動力伝達軸運動第一の検出電極53及び、二つの現像剤攪拌部材運動検出用第1の電極55がともに接地する。   45, a voltage of 5 V is applied to the electrodes 54 and 56 in FIG. 43, respectively, two developer stirring device driving force transmission shaft motion first detection electrodes 53 and two developer stirring member motion detection firsts. Both electrodes 55 are grounded.

図46において、図45における電極54と56を合わせて一つの電極69を形成する。そのほかは図45と同様である。   46, the electrodes 54 and 56 in FIG. 45 are combined to form one electrode 69. The rest is the same as FIG.

以下、図47−図60を参照して、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極およびそれに対応する電極、現像剤攪拌部材運動検出用第1の検出電極及び、それに対応する電極の構成を説明する。   Hereinafter, with reference to FIG. 47 to FIG. 60, the first detection electrode for detecting the developer stirring device driving force transmission shaft motion and the corresponding electrode, the first detection electrode for detecting the developer stirring member motion, and the corresponding The structure of the electrode to be performed will be described.

図47−図60に示された構成のどれも本発明に適用し、現像剤容器24の形状などに合わせて、適切なものを選択すればよい。   Any of the configurations shown in FIGS. 47 to 60 may be applied to the present invention, and an appropriate one may be selected according to the shape of the developer container 24 and the like.

図47は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極が、板状部材55で構成される場合を示す。これは、最も簡単な構成である。   FIG. 47 is a sectional view of the developer container 24. The case where the first detection electrode for detecting the motion of the developer agitating member is constituted by the plate-like member 55 is shown. This is the simplest configuration.

図48は図47の斜視図である。   FIG. 48 is a perspective view of FIG.

図49は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極が、板状の可撓部材55および板状の非可撓部材72で構成される場合を示す。攪拌装置を駆動軸に確実に結合させることができ、可撓部材のサイズが相対的に小さい。   FIG. 49 is a cross-sectional view of the developer container 24. The case where the 1st detection electrode for a developer stirring member motion detection is comprised with the plate-shaped flexible member 55 and the plate-shaped non-flexible member 72 is shown. The stirring device can be reliably coupled to the drive shaft, and the size of the flexible member is relatively small.

図50は図49の斜視図である。   FIG. 50 is a perspective view of FIG.

図51は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極が、発泡材の可撓部材73および板状の可撓部材55で構成される場合を示す。先端に発泡部材を用いることによって、接触時における電極の傷みを緩和することが可能となる。前記発泡部材は、炭素系の材料を混入したスポンジなどを使用することができる。   FIG. 51 is a cross-sectional view of the developer container 24. The case where the first detection electrode for detecting the motion of the developer agitating member is constituted by a foamed flexible member 73 and a plate-like flexible member 55 is shown. By using a foam member at the tip, it is possible to reduce the damage to the electrode during contact. As the foam member, a sponge mixed with a carbon-based material can be used.

図52は図51の斜視図である。   FIG. 52 is a perspective view of FIG.

図53は現像剤容器24の断面図である。現像材攪拌部材運動検出用第1の検出電極が、ブラシ状の可撓部材74および板状の可撓部材55で構成される場合を示す。上記発泡部材の場合と同様に、接触時における電極の傷みを緩和することが可能となる。発泡部材を用いた場合より、可撓性をさらに調整することが可能となる利点がある。   FIG. 53 is a cross-sectional view of the developer container 24. The case where the 1st detection electrode for a developing material stirring member motion detection is comprised with the brush-shaped flexible member 74 and the plate-shaped flexible member 55 is shown. As in the case of the foamed member, it is possible to alleviate the damage to the electrode during contact. There is an advantage that the flexibility can be further adjusted as compared with the case where the foam member is used.

図54は図53の斜視図である。   54 is a perspective view of FIG.

図55は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極が、線状の可撓部材75で構成される場合を示す。該構成によって良好な可撓性が得られる。   FIG. 55 is a cross-sectional view of the developer container 24. The case where the 1st detection electrode for a developer stirring member motion detection is comprised with the linear flexible member 75 is shown. With this configuration, good flexibility can be obtained.

図56は図55の斜視図である。   FIG. 56 is a perspective view of FIG.

図57は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極が、ブラシ状の可撓部材74で構成される場合を示す。このような構成によって、接触時において電極の傷みの緩和ができ、良好な可撓性が得られる。   FIG. 57 is a cross-sectional view of the developer container 24. The case where the 1st detection electrode for a developer stirring member motion detection is comprised with the brush-shaped flexible member 74 is shown. With such a configuration, it is possible to alleviate the damage of the electrode at the time of contact, and good flexibility can be obtained.

図58は図57の斜視図である。   58 is a perspective view of FIG.

図59は現像剤容器24の断面図である。現像剤攪拌部材運動検出用第1の検出電極が、発泡材の可撓部材73で構成される場合を示す。このような構成によって、接触時において電極の傷みの緩和ができ、良好な可撓性が得られる。   FIG. 59 is a cross-sectional view of the developer container 24. The case where the 1st detection electrode for a developer stirring member motion detection is comprised with the flexible member 73 of a foam material is shown. With such a configuration, it is possible to alleviate the damage of the electrode at the time of contact, and good flexibility can be obtained.

図60は図59の斜視図である。   FIG. 60 is a perspective view of FIG.

以下、図61−図65を参照して、可撓性の程度が異なる可撓性部材で構成される複数の現像剤攪拌部材運動検出用電極76、77及び78は、現像剤容器に現像剤が多くある状態での動作の過程を説明する。   Hereinafter, referring to FIGS. 61 to 65, a plurality of developer stirring member motion detection electrodes 76, 77 and 78 formed of flexible members having different degrees of flexibility are provided in the developer container. The process of operation in a state where there are many will be described.

次に説明する構成では、可撓性の程度が異なる可撓性部材で構成される複数の現像剤攪拌部材運動検出用電極を備え、現像剤の有無だけではなく、現像剤の量も詳細に検出することが可能となる。したがって、現像剤がなくなる前に、現像剤の残量をユーザに告知することが可能となる。   The configuration described below includes a plurality of developer stirring member motion detection electrodes formed of flexible members having different degrees of flexibility, and details not only the presence or absence of the developer but also the amount of the developer. It becomes possible to detect. Therefore, it is possible to notify the user of the remaining amount of developer before the developer runs out.

図61は現像剤容器24の断面図である。最も可撓性が低い現像剤攪拌部材運動検出用電極76は、現像剤が多くあり、その抵抗が大きい状態で、撓みが小さいため、現像剤容器の枠体に接触するが、最も可撓性が高い現像剤攪拌部材運動検出用電極78は、現像剤が多くあり、その抵抗が大きい状態で、撓みが大きいため、現像剤容器の枠体に接触しないことを示す。   FIG. 61 is a sectional view of the developer container 24. The developer agitation member motion detection electrode 76, which has the lowest flexibility, has a large amount of developer, has a large resistance, and has a small deflection, so that it contacts the frame of the developer container. The developer stirring member motion detection electrode 78 having a high value indicates that there is a large amount of developer, the resistance thereof is large, and the flexure is large, so that it does not contact the frame of the developer container.

図62は現像剤容器24の断面図である。最も可撓性が低い現像剤攪拌部材運動検出用電極76は、現像剤が多くあり、その抵抗が大きい状態で、撓みが小さいため、現像剤容器の枠体に接触するが、最も可撓性が高い現像剤攪拌部材運動検出用電極78は、現像剤が多く、その抵抗が大きい状態で、撓みが大きいため、現像剤容器の枠体に接触しないことを示す。図62は現像剤攪拌部材運動検出用第2の検出電極56に接近している状態を示す。   FIG. 62 is a cross-sectional view of the developer container 24. The developer agitation member motion detection electrode 76, which has the lowest flexibility, has a large amount of developer, has a large resistance, and has a small deflection, so that it contacts the frame of the developer container. The developer agitating member motion detection electrode 78 having a high value indicates that the developer is not in contact with the frame of the developer container because the developer is large and the resistance thereof is large and the deflection is large. FIG. 62 shows a state in which the developer agitating member motion detection second detection electrode 56 is approaching.

図63は現像剤容器24の断面図である。最も可撓性が低い現像剤攪拌部材運動検出用電極76は、現像剤が多くあり、その抵抗が大きく状態で、撓みが小さいため、現像剤攪拌部材運動検出用第2の検出電極56に接触し、通電するが、最も可撓性が高い現像剤攪拌部材運動検出用電極78が、現像剤が多く、その抵抗が大きい状態で、撓み性が大きいため、現像剤攪拌部材運動検出用第2の検出電極56に接触しない状態を示す。   FIG. 63 is a cross-sectional view of the developer container 24. The developer agitation member motion detection electrode 76 having the lowest flexibility is in contact with the developer agitation member motion detection second detection electrode 56 because it has a large amount of developer, has a large resistance, and has a small deflection. However, since the developer stirring member motion detection electrode 78 having the highest flexibility has a large amount of developer and its resistance is large and has a large flexibility, the developer stirring member motion detection second electrode is used. The state which does not contact this detection electrode 56 is shown.

図64は現像剤容器24の断面図である、現像剤攪拌装置の回転が進み、最も可撓性が低い現像剤攪拌部材運動検出用電極76は、現像剤が多くあり、その抵抗が大きい状態で、撓みが小さいため、現像剤攪拌部材運動検出用第2の検出電極56から離れ、非通電となり、最も可撓性が高い現像剤攪拌部材運動検出用電極78は、現像剤が多くあり、その抵抗が大きい状態で、撓みが大きいため、現像剤攪拌部材運動検出用第2の検出電極56に接触しない状態を示す。   FIG. 64 is a cross-sectional view of the developer container 24. The developer agitation member motion detection electrode 76, which is the least flexible as the developer agitation device advances, has a large amount of developer and a large resistance. Since the deflection is small, the developer agitating member motion detection electrode 78 is separated from the second detection electrode 56 for detecting the motion of the developer agitating member and is de-energized. This shows a state where the resistance is large and the deflection is large, so that the developer agitating member motion detection second detection electrode 56 is not contacted.

図65は現像剤容器24の断面図である。現像剤攪拌装置の回転が進み、最も可撓性が低い現像剤攪拌部材運動検出用電極76は、現像剤が多くあり、その抵抗が大きい状態で、撓みが小さいため、現像剤攪拌部材運動検出用第2の検出電極56から離れ、非通電状態となり、最も可撓性が高い現像剤攪拌部材運動検出用電極78は、現像剤が多くあり、その抵抗が大きい状態で、撓みが大きいため、現像剤攪拌部材運動検出用第2の検出電極56に接触しない状態を示す。   FIG. 65 is a cross-sectional view of the developer container 24. The developer agitating device motion detection electrode 76, which is the most flexible and has the least flexibility, has a large amount of developer, and its resistance is large, and its deflection is small. Since the developer agitating member motion detection electrode 78 which is away from the second detection electrode 56 and is in a non-energized state and has the highest flexibility has a large amount of developer and a large resistance, the deflection is large. A state where the developer agitating member movement detection second detection electrode 56 is not in contact is shown.

上記図61−図65の説明において、現像剤の量によって、可撓性の程度が異なる可撓性部材で構成された複数の現像剤攪拌部材運動検出用電極76、77及び78の接触通電状態が異なる。該複数の現像剤攪拌部材運動検出用電極の接触通電状態によって、現像剤の量が分かる。従って、このような構成は現像剤の有無だけでなく、現像剤の量をさらに詳細に検出することが可能となる。   In the description of FIGS. 61 to 65, the contact energization states of the plurality of developer stirring member motion detection electrodes 76, 77, and 78 formed of flexible members having different degrees of flexibility depending on the amount of the developer. Is different. The amount of developer can be determined by the contact energization state of the plurality of developer stirring member motion detection electrodes. Accordingly, such a configuration makes it possible to detect not only the presence of the developer but also the amount of the developer in more detail.

以下、現像剤容器内の現像剤の量によって、可撓性の程度が異なる可撓性部材で構成された複数の現像剤攪拌部材運動検出用電極76、77及び78が、現像剤攪拌部材運動検出用第2の検出電極56との接触状態、また、現像剤攪拌装置動力伝達運動検出用第1の検出電極53と現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54との接触状態を説明する。   Hereinafter, a plurality of developer stirring member motion detection electrodes 76, 77, and 78 configured by flexible members having different degrees of flexibility depending on the amount of the developer in the developer container, the developer stirring member motion The state of contact with the second detection electrode 56 for detection, the first detection electrode 53 for detecting the developer stirring device power transmission motion, and the second detection electrode 54 for detecting the developer stirring device driving force transmission shaft motion. The contact state will be described.

図66−図68を参照して、現像剤容器内の現像剤の量と、可撓性の程度が異なる可撓性部材で構成された複数の現像剤攪拌部材運動検出用電極、および現像剤攪拌装置駆動力伝達運動検出用第1の検出電極53との関係を説明し、現像剤量の検出方法を説明する。   66-68, with reference to FIGS. 66 to 68, a plurality of developer agitating member motion detection electrodes composed of flexible members having different degrees of flexibility and the amount of developer in the developer container, and the developer The relationship with the first detection electrode 53 for detecting the stirring device driving force transmission motion will be described, and a method for detecting the developer amount will be described.

図66は現像剤容器24内に現像剤が多くある場合を示す断面図である。可撓性の程度が異なる可撓性部材で構成される複数の現像剤攪拌部材運動検出用電極において、現像剤の抵抗が大きいため、検出電極が撓んでしまい、どの電極もそれに対応する電極と接触せず、通電することがない。   FIG. 66 is a cross-sectional view showing a case where there is a lot of developer in the developer container 24. In a plurality of developer agitating member motion detection electrodes composed of flexible members having different degrees of flexibility, the resistance of the developer is large, so that the detection electrode is bent, and each electrode has a corresponding electrode. There is no contact and no power is applied.

図67は現像剤容器24内に現像剤が半分以下になる場合を示す断面図である。現像剤が半分以下になる時、可撓性の程度が異なる可撓性部材で構成された複数の現像剤攪拌部材運動検出用電極において、最も可撓性が低い現像剤攪拌部材運動検出用電極76が現像剤容器24の底部に設置された電極と接触し、通電する。しかし、そのほかの可撓性が高い現像剤攪拌部材運動検出用電極は、接触することがなく、通電しない。   FIG. 67 is a cross-sectional view showing a case where the developer is less than half in the developer container 24. When the developer becomes less than half, the developer agitation member motion detection electrode having the lowest flexibility among the plurality of developer agitation member motion detection electrodes composed of flexible members having different degrees of flexibility 76 is in contact with the electrode installed at the bottom of the developer container 24 and is energized. However, the other highly flexible developer stirring member motion detection electrode is not in contact and is not energized.

図68は現像剤容器24内に現像剤がほぼなくなる場合を示す断面図である。現像剤がなくなると、現像剤による回転時の抵抗がなくなり、可撓性の程度が異なる可撓性部材で構成された複数の現像剤攪拌部材運動検出用電極のすべてがそれに対応する電極と接触し、通電する。   FIG. 68 is a cross-sectional view showing a case where the developer is almost gone in the developer container 24. When there is no developer, there is no resistance during rotation caused by the developer, and all of the plurality of developer stirring member motion detection electrodes made of flexible members with different degrees of flexibility are in contact with the corresponding electrodes. And turn on the power.

このように、可撓性の程度が異なる可撓性部材で構成された複数の現像剤攪拌部材運動検出用電極の場合、現像剤の量をより詳細に検出できる。   Thus, in the case of a plurality of developer stirring member motion detection electrodes configured by flexible members having different degrees of flexibility, the amount of developer can be detected in more detail.

上記図66−図68において、現像剤の量に問わず、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極53と現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極54が、接触状態となる。   66-68, regardless of the amount of the developer, the first detection electrode 53 for detecting the developer stirring device driving force transmission shaft motion and the second detection electrode for detecting the developer stirring device driving force transmission shaft motion. 54 becomes a contact state.

以下図69−図74を参照して、板状の可撓性部材で構成され、現像剤容器の中で回転する現像剤攪拌部材運動検出用第1の検出電極の構造を詳細に説明する。   Hereinafter, the structure of the first detection electrode for detecting the movement of the developer agitating member, which is constituted by a plate-like flexible member and rotates in the developer container, will be described in detail with reference to FIGS. 69 to 74.

図69は平らな板一枚の構造を示す斜視図である。その符号55は現像剤攪拌部材運動検出用第1の検出電極であり、61は回転軸、9は現像剤攪拌部材である。   FIG. 69 is a perspective view showing the structure of one flat plate. Reference numeral 55 denotes a first detection electrode for detecting the movement of the developer agitating member, 61 is a rotating shaft, and 9 is a developer agitating member.

図70は図69に示された構造において、接触部の接点として突起部79を設けた図である。該突起部を設けることによって、電極同士の接触が確実となり、通電が正確に行うことが可能となる。   FIG. 70 is a view in which a protrusion 79 is provided as a contact point of the contact portion in the structure shown in FIG. By providing the projection, the electrodes can be reliably in contact with each other and can be energized accurately.

図71は突起部79が設けられ、且つ、板80に中抜き部分があり、可撓性を得る例である。この中抜き部によって、より安定的な撓みを得ることが可能となる。   FIG. 71 shows an example in which the protrusion 79 is provided and the plate 80 has a hollow portion to obtain flexibility. This hollow portion makes it possible to obtain more stable bending.

図72は突起部79が設けられ、且つ、板80に中抜き部分があり、可撓性を得る他の例である。   FIG. 72 shows another example in which the protrusion 79 is provided and the plate 80 has a hollow portion to obtain flexibility.

図73は突起部79が設けられ、且つ、板80に中抜き部分があり、可撓性を得るもう一つの例。   FIG. 73 shows another example in which a protrusion 79 is provided and the plate 80 has a hollow portion to obtain flexibility.

このような構造とすると、素材自体の剛性を確保しつつ、全体として可撓性を得る。すなわち、電極の耐久性と可撓性の両方を得ることが可能となる。   With such a structure, flexibility is obtained as a whole while ensuring the rigidity of the material itself. That is, both durability and flexibility of the electrode can be obtained.

図74は図73の一部の平面図である。   FIG. 74 is a plan view of a part of FIG.

以下、図75−図76を参照して、板状可撓性部材で構成され、現像剤容器の中で回転する現像剤攪拌部材運動検出用第1の検出電極の現像剤攪拌装置駆動力伝達軸への取り付け構成を説明する。   Hereinafter, with reference to FIGS. 75 to 76, the developer stirring device driving force transmission of the first detection electrode for detecting the motion of the developer stirring member which is constituted by a plate-like flexible member and rotates in the developer container. The mounting structure on the shaft will be described.

図75は現像剤攪拌部材検出用運動第一の検出電極固定部材81を用いる場合を示す斜視図である。図76は板状可撓性部材で構成され、現像剤容器の中で回転する現像剤攪拌部材運動検出用第1の検出電極の現像剤攪拌装置駆動力伝達軸への取り付け構成を示す分解図である。   FIG. 75 is a perspective view showing a case in which the first detection electrode fixing member 81 for detecting the developer stirring member is used. FIG. 76 is an exploded view showing a configuration in which the first detection electrode for detecting the movement of the developer stirring member rotating in the developer container is mounted on the developer stirring device driving force transmission shaft, which is constituted by a plate-like flexible member. It is.

現像剤攪拌部材運動検出用第1の検出電極の回転軸61への取り付け方法は様々あるが、例えば、図75に示されたように、現像剤攪拌部材運動検出用第1の検出電極80をネジ59と固定部材81によって回転軸61に固定させる。撓みによってリサイクルできない場合に、現像剤攪拌部材運動検出用第1の検出電極80のみが交換可能となる。   There are various methods of attaching the first detection electrode for detecting the developer agitating member motion to the rotating shaft 61. For example, as shown in FIG. The rotating shaft 61 is fixed by a screw 59 and a fixing member 81. When the developer cannot be recycled due to the bending, only the first detection electrode 80 for detecting the motion of the developer agitating member can be replaced.

以下、図77−図94を参照して、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極および、それに対応する電極の構成を説明する。   Hereinafter, the configuration of the first detection electrode for detecting the developer stirring device driving force transmission shaft motion and the corresponding electrode will be described with reference to FIGS. 77 to 94.

図77−図94に示された構造のどれも本発明に適用し、実際の現像剤容器24に合わせて、各構造の特性などによって、適切なものを選択すればよい。   Any of the structures shown in FIGS. 77 to 94 may be applied to the present invention, and an appropriate one may be selected according to the characteristics of each structure in accordance with the actual developer container 24.

図77は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、非可撓性の半円形に曲がった板83で構成され、それに対応する現像剤容器に設けられた第2の検出電極は、非可撓性の丸棒82で構成される場合を示す。このような構成の場合、現像剤攪拌装置駆動力伝達運動検出用第2の検出電極(壁部直立部材)82は、直立したままであり、回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極(軸部板状部材)83は、回転軸に取り付けられ、回転に必要なトルクが小さい。   FIG. 77 is a cross-sectional view of the developer container 24. The first detection electrode for detecting the driving force transmission shaft motion of the developer stirring device rotating in the developer container is composed of a non-flexible semi-circular plate 83 and provided in the corresponding developer container. The case where the 2nd detection electrode made is comprised with the non-flexible round bar 82 is shown. In such a configuration, the developer agitator driving force transmission motion detection second detection electrode (wall portion upright member) 82 remains upright, and the rotating developer agitator driving force transmission shaft motion is detected. The first detection electrode (shaft plate member) 83 is attached to the rotating shaft and has a small torque required for rotation.

図78は図77の斜視図である。   FIG. 78 is a perspective view of FIG.

図79は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極84は、非可撓性の先端のみが半円形の四角柱で構成され、それに対応する現像剤容器に設けられた第二の検出電極54は、非可撓性板で構成される場合を示す。このような構成の場合、確実に回転軸の運動を検出でき、検出の安全性を確保できる。   FIG. 79 is a cross-sectional view of the developer container 24. The developer agitator driving force transmission shaft motion detection first detection electrode 84 that rotates in the developer container is composed of a semicircular square column only at the non-flexible tip, and the developer container corresponding thereto. The case where the second detection electrode 54 provided in is made of an inflexible plate is shown. In the case of such a configuration, the motion of the rotating shaft can be reliably detected, and the detection safety can be ensured.

図80は図79の斜視図である。   FIG. 80 is a perspective view of FIG.

図81は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極85は、非可撓性の曲げ板で構成され、それに対応する現像剤容器に設けられた第二の検出電極54は、非可撓性の板で構成される場合を示す。このような構成の場合、図79の構造とほぼ同一の効果を得ることができ、コストも低い。   FIG. 81 is a cross-sectional view of the developer container 24. The developer agitator driving force transmission shaft motion detection first detection electrode 85 that rotates in the developer container is formed of an inflexible bent plate, and a second container provided in the corresponding developer container. The detection electrode 54 is formed of an inflexible plate. In such a configuration, substantially the same effect as the structure of FIG. 79 can be obtained, and the cost is low.

図82は図81の斜視図である。   FIG. 82 is a perspective view of FIG.

図83は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極85は、非可撓性の針で構成され、それに対応する現像剤容器に設けられた第2の検出電極54は、非可撓性の板で構成されている場合を示す。このような構成の場合は、電極が回転しても、現像剤の抵抗をほとんど受けることなく、回転軸の運動を正確に検出できる。   FIG. 83 is a cross-sectional view of the developer container 24. The developer agitator driving force transmission shaft motion detection first detection electrode 85 that rotates in the developer container is composed of an inflexible needle, and a second container provided in the developer container corresponding thereto. The case where the detection electrode 54 is comprised with an inflexible board is shown. In such a configuration, even if the electrode rotates, the motion of the rotating shaft can be accurately detected with almost no resistance from the developer.

図84は図83の斜視図である。   FIG. 84 is a perspective view of FIG.

図85は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸第1の検出電極87は、回転方向と平行する、非可撓性の先端のみに突起が設けられた板で構成され、それに対応する現像剤容器に第2の検出電極54は、非可撓性板で構成される場合を示す。この場合、図83と同様に、回転時において、現像剤の抵抗をほとんど受けることがなく、回転軸の運動を正確に検出できる。図83と異なる点は、第1の検出電極は板状の構造体であるため、強度を確保しやすい。   FIG. 85 is a sectional view of the developer container 24. The developer agitator driving force transmission shaft first detection electrode 87 that rotates in the developer container is constituted by a plate that is parallel to the rotation direction and provided with a protrusion only at the inflexible tip. In the developer container, the second detection electrode 54 is formed of an inflexible plate. In this case, as in FIG. 83, during the rotation, the resistance of the developer is hardly received, and the movement of the rotation shaft can be accurately detected. A difference from FIG. 83 is that the first detection electrode is a plate-like structure, and thus it is easy to ensure the strength.

図86は図85の斜視図である。   FIG. 86 is a perspective view of FIG.

図87は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、先端に設けられた非可撓性コロ89と、該コロを支持する非可撓性支持部材88で構成され、それに対応する現像剤容器に設けられた第2の検出電極54は、非可撓性板で構成される場合を示す。この場合、電極との接触は回転接触とあり、接触時の摩擦が回転摩擦となり、非常に小さいものとなる。結果、接触部の損傷が低減され、長期にわたって、安定した接触を可能とし、耐久性のある検出装置を提供できる。   FIG. 87 is a cross-sectional view of the developer container 24. The developer agitator driving force transmission shaft motion detection first detection electrode rotating in the developer container includes an inflexible roller 89 provided at the tip and an inflexible support member for supporting the roller. A case where the second detection electrode 54 configured by 88 and provided in the developer container corresponding thereto is configured by a non-flexible plate is shown. In this case, the contact with the electrode is a rotational contact, and friction at the time of contact becomes rotational friction, which is very small. As a result, damage to the contact portion is reduced, and stable contact can be achieved over a long period of time, thereby providing a durable detection device.

図88は図87の斜視図である。   FIG. 88 is a perspective view of FIG.

図89は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、先端に設けられた非可撓性拍車91と、該拍車を支持する非可撓性支持部材90で構成され、それに対応する現像剤容器に設けられた第2の検出電極54は、非可撓性板で構成される場合を示す。この場合、図87におけるコロのかわりに拍車を用いる。これによって、現像剤がコロの表面に固着することにより通電性が低下してしまうことを防ぐことができる。   FIG. 89 is a sectional view of the developer container 24. The developer agitator driving force transmission shaft motion detection first detection electrode rotating in the developer container includes an inflexible spur 91 provided at the tip and an inflexible support member for supporting the spur. A case where the second detection electrode 54 configured by 90 and provided in the developer container corresponding thereto is configured by an inflexible plate is shown. In this case, a spur is used instead of the roller in FIG. As a result, it is possible to prevent the conductivity from deteriorating due to the developer sticking to the surface of the roller.

図90は図89の斜視図である。   FIG. 90 is a perspective view of FIG.

図91は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、先端に設けられた非可撓性ブラシ93と、該ブラシを支持する非可撓性支持部材92で構成され、それに対応する現像剤容器に設けられた第2の検出電極54は、非可撓性板で構成される場合を示す。この場合、回転する電極の先端はブラシを設けているため、対応する電極の負荷を低減することが可能となり、耐久性が向上される。   FIG. 91 is a sectional view of the developer container 24. The developer agitator driving force transmission shaft motion detection first detection electrode rotating in the developer container includes an inflexible brush 93 provided at the tip and an inflexible support member for supporting the brush. A case where the second detection electrode 54 configured by 92 and provided in the developer container corresponding thereto is configured by a non-flexible plate is shown. In this case, since the tip of the rotating electrode is provided with a brush, the load on the corresponding electrode can be reduced, and the durability is improved.

図92は図91の斜視図である。   FIG. 92 is a perspective view of FIG.

図93は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極82は、可撓性の半円形に曲げた板で構成され、それに対応する現像剤容器に設けられた第2の検出電極54は、その先端に設けられた可撓性ブラシ93および、該ブラシを支持する非可撓性支持部材94で構成される場合を示す。この場合、図77の構造とほぼ同一の効果を得ることができ、且つ、ブラシが設けられることによって、その効果をより向上させることができる。   FIG. 93 is a cross-sectional view of the developer container 24. The developer agitator driving force transmission shaft motion detection first detection electrode 82 rotating in the developer container is formed of a flexible semi-circular plate and is provided in the corresponding developer container. The second detection electrode 54 is configured by a flexible brush 93 provided at the tip thereof and a non-flexible support member 94 that supports the brush. In this case, substantially the same effect as the structure of FIG. 77 can be obtained, and the effect can be further improved by providing the brush.

図94は図93の斜視図である。   FIG. 94 is a perspective view of FIG.

以下、図95−図102を参照して、現像剤容器の中で回転し、加圧装置を備える現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極および、それに対応する電極の構成を説明する。   Referring to FIGS. 95 to 102, the configuration of the first detection electrode for detecting the driving force transmission shaft motion that rotates in the developer container and includes a pressurizing device, and the electrode corresponding thereto. Will be explained.

図95−図102に示された構造のどれも本発明に適用し、実際の現像剤容器24に合わせて、各構造の特性などによって、適切なものを選択すればよい。   Any of the structures shown in FIGS. 95 to 102 may be applied to the present invention, and an appropriate one may be selected according to the characteristics of each structure according to the actual developer container 24.

図95は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極がその先端に設けられた非可撓性コロ89と、該コロを支持する非可撓性支持部材95、スプリング96、枠体97で構成され、スプリングを設けることによって、コロ89が径方向に伸縮され、第一の検出電極に対応する現像剤容器に設けられた第二の検出電極54が非可撓性板で構成された場合を示す。この場合、スプリングの力によって、コロと第2検出電極54の安定した接触が可能となる。   FIG. 95 is a sectional view of the developer container 24. A non-flexible roller 89 provided at the tip thereof with a first detection electrode for detecting a developer stirring device driving force transmission shaft motion rotating in the developer container, and a non-flexible support member for supporting the roller 95, a spring 96, and a frame 97. By providing the spring, the roller 89 is expanded and contracted in the radial direction, and the second detection electrode 54 provided in the developer container corresponding to the first detection electrode is non-coated. The case where it comprises a flexible board is shown. In this case, the roller and the second detection electrode 54 can be stably contacted by the force of the spring.

図96は現像剤容器24の断面図である。上記図95と異なる点は、前記非可撓性コロの周りに可撓性ブラシ98が設けられたことにある。そのほかの構成は同様である。この場合、電極にかけられた負荷が小さく、安定した電極との接触が可能となる。   FIG. 96 is a cross-sectional view of the developer container 24. A difference from FIG. 95 is that a flexible brush 98 is provided around the non-flexible roller. Other configurations are the same. In this case, the load applied to the electrode is small, and stable contact with the electrode is possible.

図97は現像剤容器24の断面図である。上記図95と異なる点は、前記非可撓性コロの周りに可撓性発泡部材99が設けられたことにある。そのほかの構成は同様である。この場合、電極にかけられた負荷が小さく、安定した電極との接触が可能となる。   FIG. 97 is a cross-sectional view of the developer container 24. A difference from FIG. 95 is that a flexible foam member 99 is provided around the non-flexible roller. Other configurations are the same. In this case, the load applied to the electrode is small, and stable contact with the electrode is possible.

図98は現像剤容器24の断面図である。現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、その先端に設けられた非可撓性丸棒100と、スプリング96、枠体97で構成され、該第1の検出電極に対応する現像剤容器に設けられた第2の検出電極54は、非可撓性板で構成される場合を示す。この場合、構成が簡単であり、信頼性が高い。   FIG. 98 is a cross-sectional view of the developer container 24. The first detection electrode for detecting the driving force transmission shaft motion of the developer agitator rotating in the developer container is composed of a non-flexible round bar 100 provided at the tip, a spring 96, and a frame 97. A case where the second detection electrode 54 provided in the developer container corresponding to the first detection electrode is formed of an inflexible plate is shown. In this case, the configuration is simple and the reliability is high.

図99は現像剤容器24の断面図である。図98と比べて、非可撓性の丸棒100の先端に可動自在な非可撓性球体103が設けられる。そのほかの構成は同じである。この場合、電極先端に球体を用いるので、円滑な電極の接触が可能となる。   FIG. 99 is a cross-sectional view of the developer container 24. Compared to FIG. 98, a movable inflexible sphere 103 is provided at the tip of the inflexible round bar 100. Other configurations are the same. In this case, since a sphere is used at the tip of the electrode, smooth electrode contact is possible.

図100は図99における第1の検出電極の先端部分の拡大断面図である。その符号101が枠体、96がスプリング、104が加圧部、102が球体摺動加圧部、103が球体状部材とする。球体状部材103は球体摺動加圧部102に接触し、自在に回転しながら通電可能となる。   FIG. 100 is an enlarged cross-sectional view of the tip portion of the first detection electrode in FIG. The reference numeral 101 is a frame, 96 is a spring, 104 is a pressure member, 102 is a spherical sliding pressure member, and 103 is a spherical member. The spherical member 103 comes into contact with the spherical sliding pressure unit 102 and can be energized while freely rotating.

図101は現像剤容器24の断面図である。図98と比べて、非可撓性の丸棒100の先端に可撓性ブラシ93が設けられる。そのほかの構成は同じである。この構成の場合、電極の先端が回転できないが、簡単な構成で耐久性の向上ができる。   FIG. 101 is a cross-sectional view of the developer container 24. Compared to FIG. 98, a flexible brush 93 is provided at the tip of the non-flexible round bar 100. Other configurations are the same. In this configuration, the tip of the electrode cannot be rotated, but durability can be improved with a simple configuration.

図102は現像剤容器24の断面図である。図98と比べて、非可撓性の丸棒100の先端に可撓性発泡部材109が設けられる。そのほかの構成は同じである。この構成の場合、電極の先端が回転できないが、簡単な構成で耐久性の向上ができる。   FIG. 102 is a sectional view of the developer container 24. Compared to FIG. 98, a flexible foam member 109 is provided at the tip of the non-flexible round bar 100. Other configurations are the same. In this configuration, the tip of the electrode cannot be rotated, but durability can be improved with a simple configuration.

以下、図103−図104を参照して、現像剤容器の中で回転し、先端にコロが設けられた現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極および、それに対応する電極の構成を説明する。   Hereinafter, referring to FIGS. 103 to 104, a developer agitator driving force transmission shaft motion detection first detection electrode rotated in a developer container and provided with a roller at the tip, and an electrode corresponding thereto The structure of will be described.

図103−104に示された構造のどれも本発明に適用し、実際の現像剤容器24に合わせて、各構造の特性などによって、適切なものを選択すればよい。   Any of the structures shown in FIGS. 103 to 104 may be applied to the present invention, and an appropriate one may be selected according to the characteristics of each structure according to the actual developer container 24.

図103は現像剤容器24の断面図である。図87と異なる点は、コロに可撓性の発泡部材105が設けられることにある。そのほかの構成は同様である。この場合、安定した接触が可能となる。   FIG. 103 is a cross-sectional view of the developer container 24. A difference from FIG. 87 is that a flexible foam member 105 is provided on the roller. Other configurations are the same. In this case, stable contact is possible.

図104は現像剤容器24の断面図である。図87と異なる点は、コロに可撓性ブラシ部材106が設けられることにある。そのほかの構成は同様である。この場合、安定した接触が可能となる。   FIG. 104 is a sectional view of the developer container 24. A difference from FIG. 87 is that a flexible brush member 106 is provided on the roller. Other configurations are the same. In this case, stable contact is possible.

以下、図105を参照して、現像剤容器の中で回転し、先端にコロが設けられた現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極が、非可撓性丸棒53であり、それに対応する板状の第2電極が、加圧装置を備える構成を説明する。   Hereinafter, with reference to FIG. 105, the first detection electrode for detecting the developer driving force transmission shaft motion that rotates in the developer container and is provided with a roller at the tip is the non-flexible round bar 53. A configuration in which the plate-like second electrode corresponding thereto includes a pressurizing device will be described.

図105は現像剤容器24の断面図である。第2の検出電極110を加圧バー112および、加圧部材(図におけるスプリング)111によって、下部から加圧する。加圧部材111及び加圧バー112は枠体113により保持される。   FIG. 105 is a cross-sectional view of the developer container 24. The second detection electrode 110 is pressurized from below by a pressure bar 112 and a pressure member (spring in the figure) 111. The pressure member 111 and the pressure bar 112 are held by the frame body 113.

以下、図106−図109を参照して、現像剤容器の中で回転する現像剤攪拌装置駆動伝達軸運動検出用第1の検出電極が丸棒53であり、それに対応する非可撓性板状第2の電極が現像剤容器の内壁に設けられる構成を説明する。   Hereinafter, referring to FIGS. 106 to 109, the first detection electrode for detecting the drive transmission shaft motion of the developer stirring device rotating in the developer container is a round bar 53, and the corresponding non-flexible plate A configuration in which the second electrode is provided on the inner wall of the developer container will be described.

図106−図109に示された構造のどれも本発明に適用し、実際の現像剤容器24に合わせて、各構造の特性などによって、適切なものを選択すればよい。   Any of the structures shown in FIGS. 106 to 109 may be applied to the present invention, and an appropriate one may be selected according to the characteristics of each structure according to the actual developer container 24.

図106は非可撓性板状の第2の電極54が現像剤容器の底部に配置される状態を示す図である。その符号114は第2の電極54である。電圧の印加を容易にするために、該第二の電極54が容器の外部に延在される。
図107は非可撓性板状の第2の電極54が現像剤攪拌装置駆動力伝達軸61と同様に、同じ側壁に配置されることを示す図である。
FIG. 106 is a view showing a state in which the non-flexible plate-like second electrode 54 is disposed at the bottom of the developer container. The reference numeral 114 is the second electrode 54. In order to facilitate the application of voltage, the second electrode 54 extends outside the container.
FIG. 107 is a diagram showing that the inflexible plate-like second electrode 54 is disposed on the same side wall as the developer stirring device driving force transmission shaft 61.

図108は非可撓性板状の第2の電極54が現像剤容器の上面に配置される状態を示す図である。   FIG. 108 is a diagram showing a state where the non-flexible plate-like second electrode 54 is disposed on the upper surface of the developer container.

図109は現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極が非可撓性の丸棒53であり、それに対応する非可撓性板状の第2の電極54が現像剤容器の底部に配置され、該第2の電極54に電気的に接続される外部露出部114が現像剤攪拌装置駆動力伝達軸の支持部と同じ側壁に配置されることを示す図である。
(第二の実施形態)
以下、図110−図112を参照して、本発明の第二の実施形態を説明する。
In FIG. 109, the developer detection device driving force transmission shaft motion detection first detection electrode rotating in the developer container is a non-flexible round bar 53, and the corresponding non-flexible plate-shaped first electrode. The second electrode 54 is disposed at the bottom of the developer container, and the externally exposed portion 114 electrically connected to the second electrode 54 is disposed on the same side wall as the support portion of the developer stirring device driving force transmission shaft. FIG.
(Second embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. 110 to 112.

図110は本発明の第二の実施形態における垂直円筒型現像剤容器32を示す斜視図である。   FIG. 110 is a perspective view showing a vertical cylindrical developer container 32 according to the second embodiment of the present invention.

図111は本発明の第二の実施形態における垂直円筒型現像剤容器32の概略構成を示す斜視図である。現像剤容器は垂直状態を保持して利用される。現像剤を攪拌する駆動力を伝達するギア31は現像剤容器の上面に配置される。現像剤40は下部の現像剤口33から排出される。現像剤の量を検出する検出装置の構成要件は上記第一の実施形態と同様であるが、本実施形態の場合、垂直円筒型の現像剤容器用現像剤攪拌部材運動検出用第1の検出電極39及び、第2の検出電極38が垂直方向に複数個設置され、これらの電極の通電状態によって現像剤容器内の現像剤の判断を行う。   FIG. 111 is a perspective view showing a schematic configuration of a vertical cylindrical developer container 32 in the second embodiment of the present invention. The developer container is used while maintaining a vertical state. A gear 31 for transmitting a driving force for stirring the developer is disposed on the upper surface of the developer container. The developer 40 is discharged from the lower developer port 33. The configuration requirements of the detection device for detecting the amount of developer are the same as those in the first embodiment. In the case of this embodiment, the first detection for detecting the motion of the developer stirring member for the vertical cylindrical developer container is used. A plurality of electrodes 39 and a plurality of second detection electrodes 38 are provided in the vertical direction, and the developer in the developer container is determined according to the energized state of these electrodes.

図112は本発明の第二の実施形態における垂直四角型現像剤容器42を示す斜視図である。その内部構成は図111と同様である。   FIG. 112 is a perspective view showing a vertical square developer container 42 according to the second embodiment of the present invention. Its internal configuration is the same as in FIG.

以上、添付した図を参照して本発明の実施の形態を説明したが、本発明は上記実施形態に限るものではない。本発明の技術思想の範囲内で様々な変更を行うことができるが、これらの変更は、本発明の保護範囲に属する。   As mentioned above, although embodiment of this invention was described with reference to the attached drawing, this invention is not limited to the said embodiment. Various changes can be made within the scope of the technical idea of the present invention, but these changes belong to the protection scope of the present invention.

本発明の実施形態に係る画像形成装置を示す断面図である。1 is a cross-sectional view illustrating an image forming apparatus according to an embodiment of the present invention. 本発明の実施形態に係る画像形成装置の斜視図である。1 is a perspective view of an image forming apparatus according to an embodiment of the present invention. 本発明における粉体の量の検出及びその検出結果の告知過程を示すフローチャートである。It is a flowchart which shows the detection of the quantity of the powder in this invention, and the notification process of the detection result. 本実施形態の現像剤量検出装置及びその周辺機を制御するための制御ブロック図である。FIG. 3 is a control block diagram for controlling the developer amount detection device of the present embodiment and its peripheral devices. 本発明の検出方法において電極が通電状態である場合を示す図である。It is a figure which shows the case where an electrode is an energization state in the detection method of this invention. 電極が通電状態である場合の粉体の量の検出過程のフローチャートである。It is a flowchart of the detection process of the quantity of the powder in case an electrode is in an energized state. 現像剤容器の分解図を斜視図で示した図である。It is the figure which showed the exploded view of a developer container by the perspective view. 現像剤容器上に設置される電極の斜視図である。It is a perspective view of the electrode installed on a developer container. 現像剤容器の上カバーを取り外した状態の斜視図である。FIG. 3 is a perspective view of a state where an upper cover of a developer container is removed. 現像剤攪拌装置駆動力伝達軸の運動を検出する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極が現像剤内で回転する過程を示す断面図である。FIG. 5 is a cross-sectional view showing a process in which a developer agitator driving force transmission shaft motion detection first detection electrode for detecting the motion of the developer agitator driving force transmission shaft rotates within the developer. 前記第1の検出電極が現像剤内で回転し、現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極に接近する状態を示す現像剤容器の断面図である。FIG. 5 is a cross-sectional view of a developer container showing a state in which the first detection electrode rotates in the developer and approaches the second detection electrode for detecting the developer stirring device driving force transmission shaft motion. 前記第1の検出電極が現像剤内で回転し、現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極に接触し、通電する状態を示す現像剤容器の断面図である。FIG. 5 is a cross-sectional view of the developer container showing a state where the first detection electrode rotates in the developer, contacts the second detection electrode for detecting the developer driving force transmission shaft motion, and is energized. 現像剤容器の断面図であり、前記第1の検出電極が現像剤内で回転し、現像剤攪拌装置駆動力伝達軸運動検出用第2の検出電極に接触し通電し、電極が互いに離れようとする状態を示す。FIG. 3 is a cross-sectional view of a developer container, in which the first detection electrode rotates within the developer, contacts and energizes the second detection electrode for detecting the developer stirring device driving force transmission shaft motion, and the electrodes are separated from each other. Indicates the state. 現像剤容器の断面図であり、前記第1の検出電極が現像剤内で回転し、現像剤攪拌装置駆動力伝達運動検出用第2の検出電極に接触し通電後、電極が互いに離れ、非通電状態を示す。FIG. 6 is a cross-sectional view of a developer container, in which the first detection electrode rotates in the developer, contacts the second detection electrode for detecting the developer agitation device driving force transmission motion, and after being energized, the electrodes are separated from each other, and Indicates the energized state. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が現像剤容器内で回転する状態を示す。FIG. 3 is a cross-sectional view of the developer container, showing a state where the first detection electrode for detecting the movement of the developer stirring member rotates in the developer container. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が現像剤容器内で回転し、現像剤攪拌部材運動検出用第2の検出電極と接触する状態を示す。FIG. 6 is a cross-sectional view of the developer container, showing a state where the first detection electrode for detecting the developer agitating member motion rotates in the developer container and contacts the second detection electrode for detecting the developer agitating member motion. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が現像剤容器内で回転し、現像剤攪拌部材運動検出用第2の検出電極と接触し、通電する状態を示す。FIG. 4 is a cross-sectional view of a developer container, in which a first detection electrode for detecting a developer agitating member motion rotates in the developer container, contacts a second detection electrode for detecting a developer agitating member motion, and is energized. Show. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が現像剤容器内で回転し、現像剤攪拌部材運動検出用第2の検出電極に接触し通電し、電極が互いに離れようとする状態を示す。FIG. 3 is a cross-sectional view of a developer container, in which a first detection electrode for detecting a developer agitating member motion rotates in the developer container, contacts and energizes a second detection electrode for detecting a developer agitating member motion; The state which tries to leave | separate mutually is shown. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が現像剤容器内で回転し、現像剤攪拌部材運動検出用第2の検出電極に接触し、通電後、電極が互いに離れ、非通電状態となることを示す。FIG. 3 is a cross-sectional view of the developer container, in which the first detection electrode for detecting the developer agitating member motion rotates in the developer container, contacts the second detection electrode for detecting the developer agitating member motion, and after energization, the electrode Indicate that they are separated from each other and become non-energized. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、現像剤の中で撓みながら回転する状態を示す。FIG. 6 is a cross-sectional view of the developer container, showing a state where the first detection electrode for detecting the developer agitating member motion is rotated while being bent in the developer. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、現像剤の中で回転し、現像剤攪拌部材運動検出用第2の検出電極に接触しようとするが、第1の検出電極が可撓性部材であるため、現像剤の抵抗を受けて撓んでしまい、現像剤攪拌部材運動検出用第2の検出電極に接触できず、非通電状態となることを示す。FIG. 3 is a cross-sectional view of the developer container, in which the first detection electrode for detecting the developer agitating member motion rotates in the developer and tries to contact the second detection electrode for detecting the developer agitating member motion; Since the first detection electrode is a flexible member, the first detection electrode is bent due to the resistance of the developer, cannot contact the second detection electrode for detecting the developer stirring member motion, and is in a non-energized state. . 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、現像剤の中で回転し、現像剤攪拌部材運動検出用第2の検出電極に接触しようとするが、第1の検出電極が可撓性部材であるため、現像剤の抵抗を受けて撓んでしまい、現像剤攪拌部材運動検出用第2の検出電極に接触できず、非通電状態を示す。FIG. 3 is a cross-sectional view of the developer container, in which the first detection electrode for detecting the developer agitating member motion rotates in the developer and tries to contact the second detection electrode for detecting the developer agitating member motion; Since the first detection electrode is a flexible member, the first detection electrode bends due to the resistance of the developer, cannot contact the second detection electrode for detecting the developer agitating member motion, and shows a non-energized state. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、現像剤の中で回転し、現像剤攪拌部材運動検出用第2の検出電極に接触しようとするが、第1の検出電極が可撓性部材であるため、現像剤の抵抗を受けて撓んでしまい、現像剤攪拌部材運動検出用第2の検出電極に接触できず、非通電状態を示す。FIG. 3 is a cross-sectional view of the developer container, in which the first detection electrode for detecting the developer agitating member motion rotates in the developer and tries to contact the second detection electrode for detecting the developer agitating member motion; Since the first detection electrode is a flexible member, the first detection electrode bends due to the resistance of the developer, cannot contact the second detection electrode for detecting the developer agitating member motion, and shows a non-energized state. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、現像剤攪拌部材運動検出用第2の検出電極に接触できないまま回転し、現像剤攪拌部材運動検出用第2の検出電極から離れる状態を示す。FIG. 4 is a cross-sectional view of a developer container, in which a first detection electrode for detecting a developer agitating member motion rotates without being in contact with a second detection electrode for detecting a developer agitating member motion, The state which leaves | separates from 2 detection electrodes is shown. 現像剤容器の断面図であり、現像剤容器に多くの現像剤がある場合を示す。It is sectional drawing of a developer container, and shows the case where there are many developers in a developer container. 現像剤容器の断面図であり、現像剤容器に半分以下の現像剤がある場合を示す。It is sectional drawing of a developer container, and shows the case where the developer container has a half or less developer. 現像剤容器の断面図であり、現像剤容器に現像剤がないまたはほぼない場合を示す。It is sectional drawing of a developer container, and shows the case where there is almost no developer in a developer container. 現像剤攪拌装置駆動力伝達軸運動検出電極および現像剤攪拌部材運動検出用電極の両方とも、対応する電極と接触せず、通電しない状態を示す図である。It is a figure which shows the state which both the developer stirring device drive force transmission shaft motion detection electrode and the developer stirring member motion detection electrode do not contact with a corresponding electrode and are not energized. 現像剤攪拌装置駆動力伝達運動検出用第1の検出電極のみ、対応する電極と接触し通電するが、現像剤攪拌部材運動検出用電極が対応する電極と接触せず、通電もしない状態を示す図である。Only the first detection electrode for detecting the driving force transmission motion of the developer stirring device is in contact with the corresponding electrode and energized, but the developer stirring member motion detection electrode is not in contact with the corresponding electrode and is not energized. FIG. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極の両方とも、対応する電極と接触し、通電状態を示す図である。It is a figure which shows the energized state both of the 1st detection electrode for a developer stirring device drive force transmission shaft motion detection and the 1st detection electrode for a developer stirring member motion detection contacting a corresponding electrode. 図28、図29及び図30に対応する実施例において、現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び、現像剤攪拌部材運動検出用第1の検出電極が回転し、それぞれに対応する電極と接触する場合、現像剤の有無を判断する表である。In the examples corresponding to FIGS. 28, 29 and 30, the first detection electrode for detecting the developer stirring device driving force transmission shaft motion and the first detection electrode for detecting the motion of the developer stirring member rotate, respectively. Is a table for determining the presence or absence of the developer when the electrode contacts with the electrode. 上記図28−図30における現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極および、現像剤攪拌部材運動検出用第1の検出電極と、それぞれ対応する検出電極が現像剤容器内での構成の一部を示す斜視図である。The first detection electrode for detecting the developer stirring device driving force transmission shaft motion, the first detection electrode for detecting the developer stirring member motion, and the corresponding detection electrodes in FIGS. 28 to 30 are provided in the developer container. It is a perspective view which shows a part of structure. 上記図28−図33における現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極および、現像剤攪拌部運動検出用第1の検出電極と、それぞれに対応する電極が現像剤容器内での構成を示す平面図である。The first detection electrode for detecting the developer stirring device driving force transmission shaft motion, the first detection electrode for detecting the developer stirring portion motion, and the corresponding electrodes in FIGS. 28 to 33 are provided in the developer container. It is a top view which shows the structure of these. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第一実施例を示す図である。It is a figure which shows the 1st Example of the energization circuit of the 1st detection electrode for a developer stirring apparatus drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and the electrode corresponding to each. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第二実施例を示す図である。It is a figure which shows the 2nd Example of the electricity supply circuit with the electrode corresponding to the 1st detection electrode for a developer stirring device drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and each. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第三実施例を示す図である。It is a figure which shows the 3rd Example of the electricity supply circuit with the electrode corresponding to the 1st detection electrode for a developer stirring apparatus drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and each. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第四実施例を示す図である。FIG. 10 is a diagram showing a fourth embodiment of the energization circuit for the developer agitator driving force transmission shaft motion detection first detection electrode and the developer agitation member motion detection first detection electrode and the corresponding electrodes. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第五実施例を示す図である。FIG. 10 is a diagram showing a fifth embodiment of the energization circuit for the developer agitator driving force transmission shaft motion detection first detection electrode and the developer agitation member motion detection first detection electrode and the corresponding electrodes. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第六実施例を示す図である。It is a figure which shows 6th Example of an electricity supply circuit with the 1st detection electrode for a developer stirring device drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and the electrode corresponding to each. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第七実施例を示す図である。FIG. 10 is a diagram illustrating a seventh embodiment of a current-carrying circuit for a developer agitator driving force transmission shaft motion detection first detection electrode and a developer agitation member motion detection first detection electrode and corresponding electrodes. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第八実施例を示す図である。It is a figure which shows the 8th Example of the electricity supply circuit with the electrode corresponding to the 1st detection electrode for a developer stirring apparatus drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and each. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第九実施例を示す図である。It is a figure which shows the 9th Example of the electricity supply circuit with the electrode corresponding to the 1st detection electrode for a developer stirring apparatus drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and each. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第十実施例を示す図である。It is a figure which shows 10th Example of an electricity supply circuit with the 1st detection electrode for a developer stirring apparatus drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and the electrode corresponding to each. 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第十一実施例を示す図である。It is a figure which shows 11th Example of the energization circuit of the 1st detection electrode for a developer stirring device drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and the electrode corresponding to each. . 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第十二実施例を示す図である。It is a figure which shows 12th Example of the electricity supply circuit with the 1st detection electrode for a developer stirring device drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and the electrode corresponding to each. . 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極及び現像剤攪拌部材運動検出用第1の検出電極とそれぞれに対応する電極との通電回路の第十三実施例を示す図である。It is a figure which shows 13th Example of the electricity supply circuit with the 1st detection electrode for a developer stirring device drive force transmission shaft motion detection, the 1st detection electrode for a developer stirring member motion detection, and the electrode corresponding to each. . 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、板状部材で構成される場合を示す。It is sectional drawing of a developer container, and the case where the 1st detection electrode for a developer stirring member motion detection is comprised with a plate-shaped member is shown. 図47の斜視図である。It is a perspective view of FIG. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、板状の可撓部材および板状の非可撓部材で構成される場合を示す。It is sectional drawing of a developer container, and the case where the 1st detection electrode for a developer stirring member motion detection is comprised with a plate-shaped flexible member and a plate-shaped non-flexible member is shown. 図49の斜視図である。FIG. 50 is a perspective view of FIG. 49. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、発泡材の可撓部材および板状の可撓部材で構成される場合を示す。It is sectional drawing of a developer container, and shows the case where the 1st detection electrode for a developer stirring member motion detection is comprised with the flexible member of a foam material, and a plate-shaped flexible member. 図51の斜視図である。FIG. 52 is a perspective view of FIG. 51. 現像剤容器の断面図であり、現像材攪拌部材運動検出用第1の検出電極が、ブラシ状の可撓部材および板状の可撓部材で構成される場合を示す。It is sectional drawing of a developer container, and shows the case where the 1st detection electrode for a developer stirring member motion detection is comprised with a brush-shaped flexible member and a plate-shaped flexible member. 図53の斜視図である。FIG. 54 is a perspective view of FIG. 53. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、線状の可撓部材で構成される場合を示す。It is sectional drawing of a developer container, and the case where the 1st detection electrode for a developer stirring member motion detection is comprised with a linear flexible member is shown. 図55の斜視図である。It is a perspective view of FIG. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、ブラシ状の可撓部材で構成される場合を示す。It is sectional drawing of a developer container, and the case where the 1st detection electrode for a developer stirring member motion detection is comprised with a brush-like flexible member is shown. 図57の斜視図である。FIG. 58 is a perspective view of FIG. 57. 現像剤容器の断面図であり、現像剤攪拌部材運動検出用第1の検出電極が、発泡材の可撓部材で構成される場合を示す。It is sectional drawing of a developer container, and the case where the 1st detection electrode for a developer stirring member motion detection is comprised with the flexible member of a foam material is shown. 図59の斜視図である。FIG. 60 is a perspective view of FIG. 59. 現像剤容器の断面図であり、最も可撓性が低い現像剤攪拌部材運動検出用電極は、現像剤が多くあり、その抵抗が大きい状態で、撓みが小さいため、現像剤容器の枠体に接触するが、最も可撓性が高い現像剤攪拌部材運動検出用電極は、現像剤が多くあり、その抵抗が大きい状態で、撓みが大きいため、現像剤容器の枠体に接触しない状態となることを示す。It is a cross-sectional view of the developer container, and the developer agitation member motion detection electrode, which has the lowest flexibility, has a large amount of developer, has a large resistance, and has a small deflection. The electrode for detecting the motion of the developer agitating member, which has the highest flexibility, has a large amount of developer, and is in a state where the resistance is large and the deflection is large, so that it does not contact the frame of the developer container. It shows that. 現像剤容器の断面図であり、最も可撓性が低い現像剤攪拌部材運動検出用電極は、現像剤が多くあり、その抵抗が大きい状態で、撓みが小さいため、現像剤容器の枠体に接触するが、最も可撓性が高い現像剤攪拌部材運動検出用電極は、現像剤が多く、その抵抗が大きい状態で、撓みが大きいため、現像剤容器の枠体に接触しない状態となることを示す。It is a cross-sectional view of the developer container, and the developer agitation member motion detection electrode, which has the lowest flexibility, has a large amount of developer, has a large resistance, and has a small deflection. The electrode for detecting the motion of the developer agitating member, which has the highest flexibility, is in contact with the developer container frame because it has a large amount of developer and its resistance is large and the deflection is large. Indicates. 現像剤容器の断面図であり、最も可撓性が低い現像剤攪拌部材運動検出用電極は、現像剤が多くあり、その抵抗が大きい状態で、撓みが小さいため、現像剤攪拌部材運動検出用第2の検出電極に接触し、通電するが、最も可撓性が高い現像剤攪拌部材運動検出用電極が、現像剤が多く、その抵抗が大きい状態で、撓み性が大きいため、現像剤攪拌部材運動検出用第2の検出電極に接触しない状態を示す。This is a cross-sectional view of the developer container, and the developer agitation member motion detection electrode having the lowest flexibility has a large amount of developer, and its resistance is large. The developer detection member motion detection electrode having the highest flexibility is in contact with the second detection electrode and is energized. The developer agitation is high because the developer has a large amount of resistance and a large resistance. The state which does not contact the 2nd detection electrode for member movement detection is shown. 現像剤容器の断面図であり、現像剤攪拌装置の回転が進み、最も可撓性が低い現像剤攪拌部材運動検出用電極は、現像剤が多くあり、その抵抗が大きい状態で、撓みが小さいため、現像剤攪拌部材運動検出用第2の検出電極から離れ、非通電となり、最も可撓性が高い現像剤攪拌部材運動検出用電極は、現像剤が多く有し、その抵抗が大きい状態で、撓みが大きいため、現像剤攪拌部材運動検出用第2の検出電極に接触しない状態を示す。FIG. 4 is a cross-sectional view of a developer container, and the developer agitation member motion detection electrode having the lowest flexibility, with the rotation of the developer agitation device being abundant, has a large amount of developer, has a large resistance, and has little deflection Therefore, the developer agitating member motion detection electrode is separated from the second detection electrode for detecting the motion of the developer agitating member, is de-energized, and the developer agitation member motion detecting electrode having the highest flexibility has a large amount of developer and has a large resistance. Since the deflection is large, a state in which the developer agitating member motion detection second detection electrode is not contacted is shown. 現像剤容器の断面図であり、現像剤攪拌装置の回転が進み、最も可撓性が低い現像剤攪拌部材運動検出用電極は、現像剤が多くあり、その抵抗が大きい状態で、撓みが小さいため、現像剤攪拌部材運動検出用第2の検出電極から離れ、非通電状態となり、最も可撓性が高い現像剤攪拌部材運動検出用電極は、現像剤が多くあり、その抵抗が大きい状態で、撓みが大きいため、現像剤攪拌部材運動検出用第2の検出電極に接触しない状態を示す。FIG. 4 is a cross-sectional view of a developer container, and the developer agitation member motion detection electrode having the lowest flexibility, with the rotation of the developer agitation device being abundant, has a large amount of developer, has a large resistance, and has a small deflection. Therefore, the developer agitating member motion detection electrode is separated from the second detection electrode for detecting the motion of the developer agitating member and is in a non-energized state. Since the deflection is large, a state in which the developer agitating member motion detection second detection electrode is not contacted is shown. 現像剤容器内に現像剤が多くある場合を示す断面図である。FIG. 7 is a cross-sectional view showing a case where there is a lot of developer in a developer container. 現像剤容器内に現像剤が半分以下になる場合を示す断面図である。It is sectional drawing which shows the case where a developer becomes less than half in a developer container. 現像剤容器内に現像剤がほぼなくなる場合を示す断面図である。FIG. 7 is a cross-sectional view showing a case where the developer is almost exhausted in the developer container. 平らな板一枚の構造を示す斜視図である。It is a perspective view which shows the structure of one flat board. 図69に示された構造において、接触部の接点として突起部79を設ける図である。In the structure shown in FIG. 69, a projection 79 is provided as a contact point of the contact portion. 突起部が設けられ、且つ、板に中抜き部分があり、可撓性を得る例である。This is an example in which a protrusion is provided and the plate has a hollow portion to obtain flexibility. 突起部が設けられ、且つ、板に中抜き部分があり、可撓性を得る他の例である。This is another example in which a protrusion is provided and the plate has a hollow portion to obtain flexibility. 突起部が設けられ、且つ、板に中抜き部分があり、可撓性を得るもう一つの例。Another example in which a protrusion is provided and the plate has a hollow portion to obtain flexibility. 図73の一部の平面図である。FIG. 74 is a partial plan view of FIG. 73. 現像剤攪拌部材検出用運動第一の検出電極固定部材を用いる場合を示す斜視図である。It is a perspective view showing the case where the first detection electrode fixing member for the motion for detecting the developer stirring member is used. 板状可撓性部材で構成され、現像剤容器の中で回転する現像剤攪拌部材運動検出用第1の検出電極の現像剤攪拌装置駆動力伝達軸への取り付け構成を示す分解図である。FIG. 5 is an exploded view showing a configuration in which a developer agitating member motion detection first detection electrode configured by a plate-like flexible member and rotating in a developer container is attached to a developer agitating device driving force transmission shaft. 現像剤容器24の断面図である。3 is a cross-sectional view of a developer container 24. FIG. 図77の斜視図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、非可撓性の半円形に曲がった板で構成され、それに対応する現像剤容器に設けられた第2の検出電極は、非可撓性の丸棒で構成される場合を示す。FIG. 78 is a perspective view of FIG. 77, and the first detection electrode for detecting the driving force transmission shaft motion of the developer stirring device rotating in the developer container is composed of a non-flexible semi-circular plate, The case where the 2nd detection electrode provided in the corresponding developer container is comprised with a non-flexible round bar is shown. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、非可撓性の先端のみが半円形の四角柱で構成され、それに対応する現像剤容器に設けられた第二の検出電極は、非可撓性板で構成される場合を示す。FIG. 3 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft motion detection first detection electrode that rotates in the developer container is composed of a non-flexible tip only as a semicircular square column. In this case, the second detection electrode provided in the developer container corresponding thereto is formed of an inflexible plate. 図79の斜視図である。FIG. 80 is a perspective view of FIG. 79. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、非可撓性の曲げ板で構成され、それに対応する現像剤容器に設けられた第二の検出電極は、非可撓性の板で構成される場合を示す。FIG. 2 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft motion detection first detection electrode that rotates in the developer container is composed of a non-flexible bending plate, and development corresponding thereto The case where the 2nd detection electrode provided in the agent container is comprised with an inflexible board is shown. 図81の斜視図である。It is a perspective view of FIG. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、非可撓性の針で構成され、それに対応する現像剤容器に設けられた第2の検出電極は、非可撓性の板で構成される場合を示す。FIG. 3 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft motion detection first detection electrode that rotates in the developer container is configured by an inflexible needle, and a corresponding developer The case where the 2nd detection electrode provided in the container is comprised with a non-flexible board is shown. 図83の斜視図である。FIG. 84 is a perspective view of FIG. 83. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸第1の検出電極は、回転方向と平行する、非可撓性の先端のみに突起が設けられた板で構成され、それに対応する現像剤容器に第2の検出電極は、非可撓性板で構成される場合を示す。FIG. 3 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft first detection electrode that rotates in the developer container is provided with a protrusion only at a non-flexible tip parallel to the rotation direction. A case is shown in which the second detection electrode is formed of a non-flexible plate in the developer container corresponding thereto. 図85の斜視図である。It is a perspective view of FIG. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、先端に設けられた非可撓性コロと、該コロを支持する非可撓性支持部材で構成され、それに対応する現像剤容器に設けられた第2の検出電極は、非可撓性板で構成される場合を示す。FIG. 2 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft motion detection first detection electrode that rotates in the developer container includes an inflexible roller provided at a tip, A case is shown in which the second detection electrode, which is constituted by a supporting inflexible support member and is provided in the developer container corresponding thereto, is constituted by an inflexible plate. 図87の斜視図である。FIG. 88 is a perspective view of FIG. 87. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、先端に設けられた非可撓性拍車と、該拍車を支持する非可撓性支持部材で構成され、それに対応する現像剤容器に設けられた第2の検出電極は、非可撓性板で構成される場合を示す。FIG. 3 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft motion detection first detection electrode that rotates in the developer container includes a non-flexible spur provided at a tip, and the spur. A case is shown in which the second detection electrode, which is constituted by a supporting inflexible support member and is provided in the developer container corresponding thereto, is constituted by an inflexible plate. 図89の斜視図である。FIG. 90 is a perspective view of FIG. 89. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、先端に設けられた非可撓性ブラシと、該ブラシを支持する非可撓性支持部材で構成され、それに対応する現像剤容器に設けられた第2の検出電極は、非可撓性板で構成される場合を示す。FIG. 2 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft motion detection first detection electrode that rotates in the developer container includes a non-flexible brush provided at a tip, and the brush A case is shown in which the second detection electrode, which is constituted by a supporting inflexible support member and is provided in the developer container corresponding thereto, is constituted by an inflexible plate. 図91の斜視図である。FIG. 92 is a perspective view of FIG. 91. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、可撓性の半円形に曲げた板で構成され、それに対応する現像剤容器に設けられた第2の検出電極は、その先端に設けられた可撓性ブラシおよび、該ブラシを支持する非可撓性支持部材で構成される場合を示す。FIG. 2 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft motion detection first detection electrode that rotates in the developer container is composed of a flexible semi-circular plate, The second detection electrode provided in the corresponding developer container shows a case where the second detection electrode is constituted by a flexible brush provided at the tip thereof and a non-flexible support member that supports the brush. 図93の斜視図である。FIG. 94 is a perspective view of FIG. 93. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、その先端に設けられた非可撓性コロと、該コロを支持する非可撓性支持部材、スプリング、枠体で構成され、スプリングを設けることによって、コロが径方向に伸縮され、第一の検出電極に対応する現像剤容器に設けられた第二の検出電極は、非可撓性板で構成された場合を示す。FIG. 2 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft motion detection first detection electrode that rotates in the developer container includes an inflexible roller provided at a tip thereof, and the roller A non-flexible support member that supports the frame, and by providing the spring, the roller is expanded and contracted in the radial direction, and the second container provided in the developer container corresponding to the first detection electrode. The case where a detection electrode is comprised with an inflexible board is shown. 現像剤容器の断面図であり、非可撓性コロの周りに可撓性ブラシが設けられることを示す。FIG. 4 is a cross-sectional view of a developer container showing that a flexible brush is provided around a non-flexible roller. 現像剤容器の断面図であり、非可撓性コロの周りに可撓性発泡部材が設けられることを示す。It is sectional drawing of a developer container, and shows that a flexible foaming member is provided around a non-flexible roller. 現像剤容器の断面図であり、現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極は、その先端に設けられた非可撓性丸棒と、スプリング、枠体で構成され、該第1の検出電極に対応する現像剤容器に設けられた第2の検出電極は、非可撓性板で構成される場合を示す。FIG. 2 is a cross-sectional view of a developer container, and a developer agitator driving force transmission shaft motion detection first detection electrode that rotates in the developer container includes a non-flexible round bar provided at the tip thereof, and a spring The second detection electrode formed of a frame and provided in the developer container corresponding to the first detection electrode is formed of a non-flexible plate. 現像剤容器の断面図であり、非可撓性の丸棒の先端に可動自在な非可撓性球体が設けられることを示す。It is sectional drawing of a developer container, and shows that the non-flexible spherical body which can move freely is provided in the front-end | tip of a non-flexible round bar. 図99における第1の検出電極の先端部分の拡大断面図である。FIG. 99 is an enlarged cross-sectional view of a tip portion of a first detection electrode in FIG. 99. 現像剤容器の断面図であり、非可撓性の丸棒の先端に可撓性ブラシが設けられることを示す。It is sectional drawing of a developer container, and shows that a flexible brush is provided in the front-end | tip of a non-flexible round bar. 現像剤容器の断面図であり、非可撓性の丸棒の先端に可撓性発泡部材が設けられることを示す。It is sectional drawing of a developer container, and shows that a flexible foaming member is provided in the front-end | tip of a non-flexible round bar. 現像剤容器の断面図であり、コロに可撓性の発泡部材が設けられることを示す。It is sectional drawing of a developer container, and shows that a flexible foaming member is provided in a roller. 現像剤容器の断面図であり、コロに可撓性ブラシ部材が設けられることを示す。It is sectional drawing of a developer container, and shows that a flexible brush member is provided in a roller. 現像剤容器の断面図であり、第2の検出電極を加圧バーおよび、加圧部材によって下部から加圧することを示す。FIG. 4 is a cross-sectional view of a developer container, showing that a second detection electrode is pressurized from below by a pressure bar and a pressure member. 非可撓性板状の第2の電極が現像剤容器の底部に配置される状態を示す図である。It is a figure which shows the state by which the non-flexible plate-shaped 2nd electrode is arrange | positioned at the bottom part of a developer container. 非可撓性板状の第2の電極が現像剤攪拌装置駆動力伝達軸と同様に、同じ側壁に配置されることを示す図である。It is a figure which shows that the non-flexible plate-shaped 2nd electrode is arrange | positioned at the same side wall similarly to a developer stirring apparatus drive force transmission shaft. 非可撓性板状の第2の電極が現像剤容器の上面に配置される状態を示す図である。It is a figure which shows the state by which the non-flexible plate-shaped 2nd electrode is arrange | positioned on the upper surface of a developer container. 現像剤容器の中で回転する現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極が非可撓性の丸棒であり、それに対応する非可撓性板状の第2の電極が現像剤容器の底部に配置され、該第2の電極に電気的に接続する外部露出部が現像剤攪拌装置駆動力伝達軸の支持部と同じ側壁に配置されることを示す図である。The first detection electrode for detecting the driving force transmission shaft motion of the developer agitator rotating in the developer container is a non-flexible round bar, and the corresponding non-flexible plate-like second electrode is It is a figure which shows that the external exposure part arrange | positioned at the bottom part of a developer container and electrically connected to this 2nd electrode is arrange | positioned on the same side wall as the support part of a developer stirring apparatus drive force transmission shaft. 本発明実施形態2における垂直円筒型現像剤容器を示す斜視図である。FIG. 6 is a perspective view showing a vertical cylindrical developer container in Embodiment 2 of the present invention. 本発明実施形態2における垂直円筒型現像剤容器の構成を示す斜視図である。FIG. 6 is a perspective view showing a configuration of a vertical cylindrical developer container in Embodiment 2 of the present invention. 本発明実施形態2における垂直四角型現像剤容器の外観を示す斜視図である。It is a perspective view which shows the external appearance of the vertical square type developer container in Embodiment 2 of this invention. 特許文献1に用いられる図である。It is a figure used for patent document 1. FIG. 特許文献1に用いられる図である。It is a figure used for patent document 1. FIG. 特許文献2に用いられる図である。It is a figure used for patent document 2. FIG. 特許文献3に用いられる図である。It is a figure used for patent document 3. FIG. 特許文献3に用いられる図である。It is a figure used for patent document 3. FIG.

1 像担持体
2 現像ローラ
3 転写ローラ
8 現像剤
10 プロセスカートリッジ取手
11 レーザー光
12 搬送ローラ
14 記録媒体
16 定着装置
18 記録媒体積載部
24 現像剤容器
30 現像剤口
31 ギア
32 垂直円筒型現像剤容器
40 現像剤
42 垂直四角現像剤
43 粉体量検出用電源
44 粉体攪拌装置制御装置
45 粉体の使用装置
47 タイマー
48 着脱検出装置
49 粉体容器
50 粉体量判定容器
51 通電判定器A
52 通電判定器B
53 現像剤攪拌装置駆動力伝達運動検出用第1の検出電極
54 現像剤攪拌装置駆動力伝達運動検出用第2の検出電極
55 現像剤攪拌部材運動検出用第1の検出電極
56 現像剤攪拌部材運動検出用第2の検出電極
57 判定結果告知装置
58 現像剤攪拌部材
59 現像剤攪拌部材固定ネジ
60 現像剤容器用軸受け
61 攪拌装置駆動力伝達軸
62 現像剤容器下部
65、66 現像剤検出用電極
72 非可撓部材
73 可撓部材
74 ブラシ状の可撓部材
75 線状の可撓部材
76、77、78 現像剤攪拌部材運動検出用電極
79 突起部
80 板
81 現像剤攪拌部材運動用第1の検出用電極固定部材
82 丸棒
83、84、85、87 現像剤攪拌装置駆動力伝達軸運動検出用第1の検出電極
88、90、92 非可撓性支持部材
91 非可撓性拍車
93 可撓性ブラシ
94、95 非可撓性ブラシ
96 スプリング
97 枠体
100 可撓性丸棒
103 球体状部材
104 加圧部
109 可撓性発泡部材
114 外部露出部
115 現像剤攪拌用電源
116 電流検知コントローラ
117 現像剤攪拌用モータ
118 演算回路
DESCRIPTION OF SYMBOLS 1 Image carrier 2 Developing roller 3 Transfer roller 8 Developer 10 Process cartridge handle 11 Laser beam 12 Conveying roller 14 Recording medium 16 Fixing device 18 Recording medium stacking part 24 Developer container 30 Developer port 31 Gear 32 Vertical cylindrical developer Container 40 Developer 42 Vertical square developer 43 Power supply 44 for detecting powder amount Powder stirring device controller 45 Powder use device 47 Timer 48 Attachment / detachment detector 49 Powder container 50 Powder amount determination container 51 Energization determination device A
52 Energizer J
53 Developer detection device driving force transmission motion detection first detection electrode 54 Developer stirring device driving force transmission motion detection second detection electrode 55 Developer stirring member motion detection first detection electrode 56 Developer stirring member Second detection electrode 57 for motion detection Determination result notification device 58 Developer stirring member 59 Developer stirring member fixing screw 60 Developer container bearing 61 Stirrer drive force transmission shaft 62 Developer container lower portions 65 and 66 For developer detection Electrode 72 Non-flexible member 73 Flexible member 74 Brush-like flexible member 75 Linear flexible members 76, 77, 78 Developer stirring member motion detection electrode 79 Protrusion 80 Plate 81 Developer stirring member motion first 1 detection electrode fixing member 82 Round bars 83, 84, 85, 87 Developer stirring device driving force transmission shaft motion detection first detection electrodes 88, 90, 92 Non-flexible support member 91 Non-flexible spur 93 Yes Flexible brushes 94, 95 Non-flexible brush 96 Spring 97 Frame 100 Flexible round bar 103 Spherical member 104 Pressurizing part 109 Flexible foaming member 114 Externally exposed part 115 Power supply for developer stirring 116 Current detection controller 117 Developer stirring motor 118 arithmetic circuit

Claims (10)

粉体容器の内部に設けられる粉体攪拌装置と、前記粉体攪拌装置における攪拌部材を駆動する駆動力を該攪拌部材に伝達する駆動力伝達部材とを備える粉体量検出装置において、
前記駆動力伝達部材の運動を検出する第1の検出装置と、
前記粉体攪拌装置における攪拌部材の運動を検出する第2の検出装置と、
前記駆動力伝達部材の運動を検出する第1の検出装置によって得られた情報と、前記攪拌部材の運動を検出する第2の検出装置によって得られた情報とに基づいて、粉体容器内部の粉体量を判定する判定装置と、
を含み、
前記判定装置は、前記第1の検出装置によって前記駆動力伝達部材の運動が正常である情報が得られた場合のみ、前記粉体容器内部の粉体量の判定を行う、
ことを特徴とする粉体量検出装置。
In a powder amount detection apparatus comprising: a powder agitation device provided inside a powder container; and a driving force transmission member that transmits a driving force for driving the agitation member in the powder agitation device to the agitation member.
A first detection device for detecting movement of the driving force transmission member;
A second detection device for detecting movement of the stirring member in the powder stirring device;
Based on the information obtained by the first detection device that detects the movement of the driving force transmitting member and the information obtained by the second detection device that detects the movement of the stirring member, A determination device for determining the amount of powder;
Including
The determination device determines the amount of powder in the powder container only when information indicating that the movement of the driving force transmission member is normal is obtained by the first detection device.
A powder amount detection device characterized by that.
前記第1の検出装置および第2の検出装置は、それぞれ電極対の接触による通電状態を検出することを特徴とする請求項に記載の粉体量検出装置。 2. The powder amount detection device according to claim 1 , wherein each of the first detection device and the second detection device detects an energized state due to contact of an electrode pair. 前記粉体容器が粉体を使用する装置に装着された時から所定の時間の間、及び/又は、前記粉体容器内の粉体がなくなりそうだと判断した時から粉体がないと前記検出装置により検出した時までの間において、電圧が検出用電極に印加されることを特徴とする請求項に記載の粉体量検出装置。 The detection that there is no powder for a predetermined time from when the powder container is mounted on a device using powder and / or when it is determined that the powder in the powder container is likely to run out. 3. The powder amount detection device according to claim 2 , wherein a voltage is applied to the detection electrode until the time of detection by the device. 前記粉体を使用する装置に設置された操作盤を操作することによって、電圧が検出用電極に印加されることを特徴とする請求項に記載の粉体量検出装置。 3. The powder amount detection device according to claim 2 , wherein a voltage is applied to the detection electrode by operating an operation panel installed in the device that uses the powder. 前記攪拌部材の運動を検出する前記電極対の少なく一方が、可撓性部材で構成されることを特徴とする請求項に記載の粉体量検出装置。 The powder amount detection device according to claim 2 , wherein at least one of the electrode pairs for detecting the movement of the stirring member is formed of a flexible member. 前記攪拌部材の運動を検出する電極が可撓性部材であり、該電極が複数である場合、各電極の可撓性の度合いが2種類以上であることを特徴とする請求項に記載の粉体量検出装置。 Wherein an electrode is flexible member for detecting the motion of the agitating member, when the electrode is a plurality, of claim 2, the degree of flexibility of each electrode, characterized in that two or more types Powder quantity detection device. 前記粉体が電子写真方式の画像形成装置における現像剤であることを特徴とする請求項1乃至6の何れか1項に記載の粉体量検出装置。 The powder amount detection apparatus according to claim 1, wherein the powder is a developer in an electrophotographic image forming apparatus. 請求項に記載の粉体量検出装置を備えることを特徴とする現像装置。 A developing device comprising the powder amount detection device according to claim 7 . 請求項に記載の現像装置を備えることを特徴とするプロセスカートリッジ。 A process cartridge comprising the developing device according to claim 8 . 請求項7に記載の粉体量検出装置、または請求項に記載の現像装置、または請求項に記載のプロセスカートリッジを備えることを特徴とする画像形成装置。 An image forming apparatus comprising the powder amount detection device according to claim 7, the developing device according to claim 8 , or the process cartridge according to claim 9 .
JP2007309135A 2006-11-30 2007-11-29 Powder amount detection device, developing device, process cartridge, and image forming apparatus Expired - Fee Related JP5060261B2 (en)

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