JPH0342690A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPH0342690A JPH0342690A JP1179781A JP17978189A JPH0342690A JP H0342690 A JPH0342690 A JP H0342690A JP 1179781 A JP1179781 A JP 1179781A JP 17978189 A JP17978189 A JP 17978189A JP H0342690 A JPH0342690 A JP H0342690A
- Authority
- JP
- Japan
- Prior art keywords
- image forming
- feedback information
- voltage
- replacement
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000001454 recorded image Methods 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
Landscapes
- Developing For Electrophotography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業−」−の利用分野〕
本発明は、電子写真複写機や電子写真記録装置と言った
画像形成装置に関し、詳しくは、像形成体を飛電させる
招電器σ）放電ワイヤに放電電圧を印加−４る昇圧装置
の作動も含めた画像形成工程を本体制御部に、１ニー１
）て制御する画像形成装置に関する。[Detailed Description of the Invention] [Field of Application of Industry] The present invention relates to an image forming apparatus such as an electrophotographic copying machine or an electrophotographic recording apparatus, and more particularly, to an electrophotographic device (σ) for causing electric shock to an image forming body. The image forming process, including the operation of the voltage booster that applies the discharge voltage to the discharge wire, is carried out in the main body control section, 1 knee 1.
).
〔従来０）技ｉｉ、ｒ ）
上述の画像形成装置において、昇圧装置の低圧側電源回
路の制御部に高圧側負荷回路の接地との間に接続した抵
抗によって取り出される情報（帰還情報とも言う）を入
力して、その情報に基つき昇圧装置の制御部か高圧側負
荷回路の電流または電圧を安定化させるように制御する
ものは知られている。しかし、帰還情報を高圧電流や電
圧の安定化以外に利用したものはなかった。[Conventional 0) Techniques ii, r) In the image forming apparatus described above, information (also referred to as feedback information) taken out by a resistor connected between the control unit of the low voltage side power supply circuit of the booster and the ground of the high voltage side load circuit. It is known that the control unit of the booster or the high-voltage side load circuit is controlled to stabilize the current or voltage based on the input information. However, there has been no use of feedback information for purposes other than stabilizing high-voltage currents and voltages.
本発明者らは、上述のような帰還情報は像形成体の帯電
電位や抵抗等の状態および帯電器の汚れ等の状態の影響
を受けるから、帰還情報な昇圧装置における高圧電流や
電圧の安定化以外の画像形成条件の設定や像形成体等の
保守、交換時機の決定に利用し得ると考えた。すなわち
、本発明は、昇圧装置の高圧側負荷回路から得られる帰
還情報を高圧電流や電圧の安定化以外に利用する画像形
成装置の提供を目的とする。The present inventors believe that the above-mentioned feedback information is affected by the charging potential and resistance of the image forming body, and the dirtiness of the charger, so the feedback information is important for stabilizing the high voltage current and voltage in the booster. We believe that this method can be used to set image forming conditions other than image forming, to maintain image forming bodies, and to determine when it is time to replace them. That is, an object of the present invention is to provide an image forming apparatus that utilizes feedback information obtained from a high-voltage side load circuit of a booster for purposes other than stabilizing high-voltage current and voltage.
本発明は、像形成体を招電さＵる招電器の放電ワイヤに
放電電圧を印加する昇圧装置の作動も含めた画像形成工
程を本体制御部によって制御する画像形成装置において
、昇圧装置の高圧側負荷回路の接地との間に接続した抵
抗によって取り出される情報を本体制御部によって利用
するようにしたことを特徴とする画像形成装置にあり、
この構成によって前記目的を遠戚する。The present invention provides an image forming apparatus in which a main body control unit controls an image forming process including the operation of a voltage booster that applies a discharge voltage to a discharge wire of a energizer that summons an electric current to an image forming body. An image forming apparatus characterized in that information retrieved by a resistor connected between a side load circuit and a ground is utilized by a main body control section,
This configuration is a distant relative of the above objective.
すなわち、本発明の画像形成装置は、昇圧装置の帰還情
報またはそれに基づく情報を本体制御部に入力して利用
するようにしているから、現像バイアスのような画像形
成条件の設定あるいは像形成体や帯電器の交換、保守時
機の決定に利用して画像形成条件や交換、保守時機を適
切にすることができる。That is, in the image forming apparatus of the present invention, the feedback information of the booster or information based on the feedback information is input to the main body control section and used. It can be used to determine when to replace and maintain the charger, and to optimize image forming conditions and when to replace and maintain the charger.
以下本発明を図示例によって説明する。 The present invention will be explained below using illustrated examples.
第１図は本発明画像形成装置の１例を示す概要構成図て
あり、この画像形成装置の本体制御部は、図示してない
コピー釦の押圧等により画像形成命令を入力されること
によって、以下のように画像形成工程を制御する。FIG. 1 is a schematic configuration diagram showing an example of the image forming apparatus of the present invention, and the main body control section of this image forming apparatus receives an image forming command by pressing a copy button (not shown), etc. The image forming process is controlled as follows.
像形成体１か矢印方向に回転し、図示してないクリーニ
ング装置か像形成体１の表面をクリーニングし、昇圧装
置か昇圧用電源から２４Ｖと言ったような電圧を低圧側
電源回路に印加されてその回路を制御部によりオンオフ
されることによって高圧側負荷回路て帯電器２の放電ワ
イヤ２ａに放電電圧を印加し、それにより帯電器２が像
形成体ｌのクリーニング面を一様に帯電し、その帯電面
に図示してない像露光装置が原稿からの像露光３を入射
して静電像を形成し、その静電像を現像装置４かトナー
像に現像し、そのトナー像を図示してない給紙手段によ
って像形成体１に対し送り込まれた記録紙に転写器が転
写し、その記録紙を分離器か像形成体１から分離し、そ
の記録紙の１−す像を図示してない定着装置が定着し、
そして記録紙が機外に送り出され、トナー像を転写した
像形成体ｌの面はクリーニング装置によってクリーニン
グされて再び次の画像形成が行われる状態となす、以上
の動作か指定されたコピー枚数回だけ繰返された後に停
止して画像形成工程が終了する。The image forming body 1 is rotated in the direction of the arrow, the surface of the image forming body 1 is cleaned by a cleaning device (not shown), and a voltage of 24 V is applied to the low voltage side power supply circuit from a booster or boosting power source. When the circuit is turned on and off by the control unit, a discharge voltage is applied to the discharge wire 2a of the charger 2 by the high-voltage load circuit, so that the charger 2 uniformly charges the cleaning surface of the image forming body l. An image exposure device (not shown) inputs image exposure 3 from the document onto the charged surface to form an electrostatic image, a developing device 4 develops the electrostatic image into a toner image, and the toner image is converted into a toner image. A transfer device transfers the image onto a recording paper fed to the image forming body 1 by a paper feeding means (not shown), the recording paper is separated from the image forming body 1 by a separator, and the 1-stage image of the recording paper is drawn. The fixing device (not shown) fixes the
Then, the recording paper is sent out of the machine, and the surface of the image forming body l on which the toner image has been transferred is cleaned by the cleaning device, and the next image formation is performed again. After this is repeated, the image forming process is stopped and the image forming process is completed.
この画像形成工程において、昇圧装置は、高圧側負荷回
路の帰還抵抗Ｒによって取り出される帰還情報ＶＲを低
圧側電源回路の制御部に入力して、制御部が帰還情報Ｖ
Ｒに基づいてトランジスタによる低圧側電源回路のオン
オフ制御を行い帯電器２の放電ワイヤ２ａに印加する放
電電圧を安定させるようにしている。昇圧装置はさらに
、帰還情報ｖＲを本体制御部にも入力している。そして
図示例の本体制御部は、コンパレータ等によって帰還情
報ｖＲが所定の値以上になったら表示手段によって像形
成体Ｉの交換時機あるいは帯電器２の清掃時機を知らせ
たり、帰還情報ＶＲに応じバイアス電源によって現像装
置４の現像スリーブ４ａに印加するバイアス電圧を変え
、それによって記録画像の濃度を安定させたりする。In this image forming step, the booster inputs the feedback information VR taken out by the feedback resistor R of the high voltage side load circuit to the control section of the low voltage side power supply circuit, and the control section inputs the feedback information VR to the control section of the low voltage side power supply circuit.
On/off control of the low-voltage side power supply circuit using a transistor is performed based on R, thereby stabilizing the discharge voltage applied to the discharge wire 2a of the charger 2. The booster further inputs feedback information vR to the main body control section. The illustrated main body control section uses a comparator or the like to inform that it is time to replace the image forming body I or to clean the charger 2 when the feedback information vR reaches a predetermined value or more, and to bias the image forming apparatus according to the feedback information VR. The bias voltage applied to the developing sleeve 4a of the developing device 4 is changed by the power source, thereby stabilizing the density of the recorded image.
本発明は上述の例に限らず、昇圧装置が帰還情報を利用
しないものでも、帰還情報を例えば帯電器の清掃時機表
示たけまたは現像バイアスの設定にだけ利用するもので
もよい。The present invention is not limited to the above-described example, and the booster may not use the feedback information, or may use the feedback information only, for example, to indicate when it is time to clean the charger or to set the developing bias.
本発明の画像形成装置においては、昇圧装置の帰還情報
によって画像形成条件や画像形成手段の交換、保守時機
を適切にすることかできる。In the image forming apparatus of the present invention, the image forming conditions, the replacement of the image forming means, and the timing for maintenance can be made appropriate based on the feedback information from the booster.
第１図は本発明画像形成装置の１例を示す概要構成図で
ある。FIG. 1 is a schematic diagram showing an example of the image forming apparatus of the present invention.
Claims (1)
印加する昇圧装置の作動も含めた画像形成工程を本体制
御部によって制御する画像形成装置において、昇圧装置
の高圧側負荷回路の接地との間に接続した抵抗によって
取り出される情報を本体制御部によって利用するように
したことを特徴とする画像形成装置。In an image forming apparatus in which the main body control unit controls the image forming process, including the operation of a voltage booster that applies a discharge voltage to the discharge wire of a charger that charges an image forming body, the high-voltage side load circuit of the voltage booster is connected to the ground. An image forming apparatus characterized in that information retrieved by a resistor connected between is used by a main body control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1179781A JPH0342690A (en) | 1989-07-10 | 1989-07-10 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1179781A JPH0342690A (en) | 1989-07-10 | 1989-07-10 | Image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0342690A true JPH0342690A (en) | 1991-02-22 |
Family
ID=16071781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1179781A Pending JPH0342690A (en) | 1989-07-10 | 1989-07-10 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342690A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8676067B2 (en) | 2010-08-31 | 2014-03-18 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus |
| CN114302214A (en) * | 2021-01-18 | 2022-04-08 | 海信视像科技股份有限公司 | Virtual reality equipment and anti-jitter screen recording method |
-
1989
- 1989-07-10 JP JP1179781A patent/JPH0342690A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8676067B2 (en) | 2010-08-31 | 2014-03-18 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus |
| CN114302214A (en) * | 2021-01-18 | 2022-04-08 | 海信视像科技股份有限公司 | Virtual reality equipment and anti-jitter screen recording method |
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