JPH01283578A - Toner replenishing device in developing device - Google Patents

Toner replenishing device in developing device

Info

Publication number
JPH01283578A
JPH01283578A JP63115149A JP11514988A JPH01283578A JP H01283578 A JPH01283578 A JP H01283578A JP 63115149 A JP63115149 A JP 63115149A JP 11514988 A JP11514988 A JP 11514988A JP H01283578 A JPH01283578 A JP H01283578A
Authority
JP
Japan
Prior art keywords
toner
toner replenishing
container
guide piece
section
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
Application number
JP63115149A
Other languages
Japanese (ja)
Inventor
Akihiro Ikuma
生熊　章浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP63115149A priority Critical patent/JPH01283578A/en
Publication of JPH01283578A publication Critical patent/JPH01283578A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865—Arrangements for supplying new developer
    • G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
    • G03G15/087—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
    • G03G15/0872—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge the developer cartridges being generally horizontally mounted parallel to its longitudinal rotational axis
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0663—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
    • G03G2215/0665—Generally horizontally mounting of said toner cartridge parallel to its longitudinal rotational axis
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0663—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
    • G03G2215/0675—Generally cylindrical container shape having two ends

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To prevent the leakage of toner by providing an engaging guide piece around the innermost edge of the toner replenishing container insertion port of a toner replenishing part, limiting the loading and unloading of a toner replenishing container other than a prescribed position, and restricting the toner replenishing container to rotating freely. CONSTITUTION:The title device is a toner replenishing device, in which cylindrical toner replenishing container 9 possessing a toner discharging opening 20a on a part of its peripheral wall is loaded into the toner replenishing part 7 of a developing device and the engage guide piece 7b is provided around the innermost edge of the toner replenishing container insertion port of the toner replenishing part. The leading edge of the cylindrical toner replenishing container 9 is provided with a first engaging part 21a engaged with the engaging guide piece 7b and restricting the loading and unloading of the toner replenishing container 9 other than the prescribed position, and a second engaging part 21c engaged with the engaging guide 7b and restricting the toner replenishing container 9 to rotating freely. Thus, the toner replenishing case is readily and surely attached to or detached from the toner replenishing part of the developing device, and toner leakage which has occurred on loading and unloading the container, is prevented.

Description

【発明の詳細な説明】[Detailed description of the invention] 【産業上の利用分野】[Industrial application field]

本発明は、電子写真複写機や静電記録装置等の記録装置
における現像装置に設けてトナーを補給するトナー補給
装置に関する。The present invention relates to a toner replenishing device that is installed in a developing device in a recording device such as an electrophotographic copying machine or an electrostatic recording device to replenish toner.

【発明の背景】[Background of the invention]

一般に、電子写真複写機や静電記録装置等の静電像を利
用した画像記録装置においては、静電像担持体上に静電
像を形成し、現像装置によって該静電像にトナーを付着
させて顕像化し、得られたトナー像を記録用紙に転写し
、定着して目的の記録物を得る。 上記した現像装置においては、トナー補給部のトナー格
納部から現像剤撹拌部へトナーが供給される。現像剤撹
拌部内に設けられた現像剤成分比率検出手段によってト
ナーの消費状況を検出し、この検出結果に基づいてトナ
ーの必要量を前記トナー格納部から供給する。こうして
トナー格納部からの供給が繰り返され、トナー格納部の
トナーが減少すると、トナー残量検知手段によって操作
パネル部等の例えばトナー補給指示灯が点灯する。 そして補給用トナーを収納したトナー補給容器をトナー
補給部の補給容器挿脱口に装着してトナーを補給する。Generally, in image recording devices that utilize electrostatic images, such as electrophotographic copying machines and electrostatic recording devices, an electrostatic image is formed on an electrostatic image carrier, and toner is attached to the electrostatic image by a developing device. The resulting toner image is transferred to recording paper and fixed to obtain the desired recorded matter. In the above-described developing device, toner is supplied from the toner storage section of the toner supply section to the developer stirring section. The consumption status of toner is detected by a developer component ratio detection means provided in the developer stirring section, and the required amount of toner is supplied from the toner storage section based on the detection result. In this way, supply from the toner storage section is repeated, and when the amount of toner in the toner storage section decreases, a toner replenishment indicator light on the operation panel section or the like is turned on by the remaining toner amount detection means. Then, the toner replenishment container containing replenishment toner is attached to the replenishment container insertion/removal port of the toner replenishment section to replenish toner.

【発明が解決しようとする問題点】[Problems to be solved by the invention]

従来知られているトナー補給容器の一例としては、補給
用トナーを収納する容器本体を円筒状になし、その周壁
の一部にトナー流出口となるスロットを形成し、該容器
を現像装置のトナー補給部に挿入した後、該容器を回転
させてトナーを落下投入するものである。しかしながら
、このような構造のトナー補給容器によってトナーを補
給する際にも、該容器を挿脱するときに、容器内のトナ
ーが外部へ流出・散乱し不測の事故を起こす可能性があ
る。また、トナー補給容器交換のために容器を補給部か
ら引き抜くときに、該容器を半回転させずに引き抜いて
しまうと、トナー流出口となるスロットが下向きのまま
取り出しこととなり、容器内に残留したトナーを周囲に
散乱させて汚損させてしまう。更に１、補給部のガイド
溝に係合する突起を手指にて把持する容器後端付近に設
けておくと、このトナー補給容器を補給部に装着すると
きに手指に引っ掛かる等、種々の欠点を有するものであ
った。As an example of a conventionally known toner replenishment container, the container main body for storing replenishment toner is made into a cylindrical shape, a slot serving as a toner outlet is formed in a part of the peripheral wall, and the container is used to store toner in a developing device. After inserting the container into the replenishing section, the container is rotated and the toner is dropped into the container. However, even when replenishing toner using a toner replenishing container having such a structure, there is a possibility that when the container is inserted or removed, the toner in the container may leak out or scatter to the outside, causing an unexpected accident. In addition, when pulling out the toner supply container from the replenishment unit to replace the toner supply container, if the container is pulled out without rotating it half a turn, the slot that serves as the toner outlet will remain facing downward, and the toner remaining in the container will be removed. This causes the toner to scatter and stain the surrounding area. Furthermore, if a protrusion that engages with the guide groove of the replenishment section is provided near the rear end of the container that is to be grasped with fingers, various disadvantages such as the toner replenishment container getting caught on the fingers when attached to the replenishment section may occur. It was something that I had.

【問題点を解決するための手段】[Means to solve the problem]

本発明は上記した欠点を解消するためになされたもので
あって、トナー補給容器からのトナーの散乱・汚染によ
る事故を防止できる改良されたトナー補給装置を提供す
ることを目的とするものである。特にトナー補給容器を
現像装置のトナー補給部へ挿入・離脱する際に容易且つ
確実に操作してトナーの漏出を防止するようにしたトナ
ー補給装置の提供を目的とするものである。 上記目的は、周壁の一部にトナー放出開口を有する円筒
状トナー補給容器を現像装置のトナー補給部に装填して
トナーを補給するトナー補給装置において、前記トナー
補給部の補給容器挿入口実部端面付近に保合案内片を設
けると共に、前記円筒状トナー補給容器の先端部に上記
係合案内片に係合して所定位置以外での上記トナー補給
容器の挿脱を制限する第１係合部と、上記係合案内片に
係合して上記トナー補給容器の自由回転を制限する第２
係合部とを設けたことを特徴とする現像装置におけるト
ナー補給装置によって達成される。The present invention has been made in order to eliminate the above-mentioned drawbacks, and an object of the present invention is to provide an improved toner replenishing device that can prevent accidents caused by scattering and contamination of toner from a toner replenishing container. . In particular, it is an object of the present invention to provide a toner replenishing device that can be easily and reliably operated to prevent toner leakage when a toner replenishing container is inserted into and removed from a toner replenishing section of a developing device. The above object is to provide a toner replenishment device that replenishes toner by loading a cylindrical toner replenishment container having a toner discharge opening in a part of the peripheral wall into a toner replenishment section of a developing device, the end surface of the replenishment container insertion opening flange of the toner replenishment section. A first engaging portion is provided with a retaining guide piece nearby and engages with the engaging guide piece at the tip of the cylindrical toner supply container to restrict insertion and removal of the toner supply container at a position other than a predetermined position. and a second part that engages with the engagement guide piece to restrict free rotation of the toner supply container.
This is achieved by a toner replenishing device in a developing device characterized by being provided with an engaging portion.

【実施例】【Example】

本発明の実施例を添付図面に基づいて説明する。 第１図は本発明に係る現像装置の断面図である。 現像装置ｌｌは、トナー補給部７、現像剤撹拌部１３、
現像部１２が現像装置枠体１４内に配設されている。 トナー補給部７は、容器挿脱部７ａとトナー補給容器９
とから成るトナー補給装置およびトナー格納部８を備え
ている。 現像剤撹拌部１３は、トナー格納部８からトナーを搬出
する搬出ローラ５、トナーを撹拌位置へ搬送する搬送ロ
ーラ４、撹拌された現像剤を現像部へ供給する供給ロー
ラ６、現像剤を撹拌する撹拌部材３を備えている。 現像部】２は、その周面に薄膜状に現像剤を担持し、回
転しながら静電像担持体ｌＯ上に形成された静電潜像に
トナーを付着させて現像する現像スリーブ１１現像スリ
ーブｌ上の現像剤層の層厚を規制する現像剤層厚規制部
材２等を備えている。 トナーは、トナー補給部７のトナー補給容器９からトナ
ー格納部８に一旦格納される。現像によってトナーが消
費され、その結実現像剤撹拌部１３におけるトナー濃度
が所定値以下になると、濃度検知に基づいて搬出ローラ
５が駆動しトナーが格納部８から搬出される。搬出され
たトナーは搬送ローラ４によって現像剤撹拌位置へと搬
送される。 この撹拌位置で撹拌部材３によって撹拌され各成分が均
質に混合された現像剤は供給ローラ６によって現像部１
２へ供給され現像スリーブｌによって捕獲されやすい位
置へと移動する。現像剤は磁気ロール（不図示）等を内
設して回転する現像スリーブｌによって捕獲され該スリ
ーブｌの周面に付着する。そして、現像剤層厚規制部材
２によって現像剤は均一な薄層に形成される。現像スリ
ーブｌと静電像担持体１０との回転によって静電潜像と
現像剤薄層とが対峙し、現像スリーブ１からはトナー成
分のみが静電潜像に移行し現像が行われる。 このようにして、前記トナー格納部８からのトナーの搬
出が繰り返し行われ、トナー格納部８内のトナーが減少
すると、トナーの残量が検知され、トナー補給容器９の
交換が行われる。 第２図は本発明に係るトナー補給容器９の斜視図である
。トナー補給容器９は、トナーの収納部が中空円筒形状
をなしている。容器本体２０は上記の如く中空円筒状を
なしていてその両端は開口している。該容器本体２０の
円筒側壁面の一部には、所定幅を有し、長手方向に所定
長さをなす細長い開口溝形状のスロット２０ａが切り開
かれていて、トナーの放出落下口となっている。 容器本体２０の挿入後端部（左側）はホルダ一部材２２
によって密封状に接着閉止されている。ホルダ一部材２
２は容器本体２０の挿入後端部を封止すると共に、その
左方に突出した偏平状の把手２２ａはトナー補給容器９
を現像装置１１のトナー補給部７に着脱操作およびトナ
ー補給時の回転操作のつまみの役割をなす。 容器本体２０のスロット２０ａの外周縁は可撓性シール
部材２３を接着固定することによって封止されているか
ら、トナー補給容器９が補給前の保存状態にあるときは
、容器本体２０内に収納されているトナーはスロット２
０ａから漏出することはない。上記シール部材２３はス
ロット２０ａの長手方向の長さの約１．５倍の長さを有
していて、まずスロット２０ａの外周縁を封止したのち
、スロット２０ａの外周縁の右端付近の折り返し部で折
り返えされ、再びスロット２０ａの上方を反転して引き
回し、スロット２０ａの中程で可視性シール部材の上面
若しくは容器本体２０の外壁の一部に接着・固定されて
いる。 トナー補給容器９は、中空円筒状の容器本体２０内にト
ナーを収納したのち、キャップ部材２１を圧入・密栓す
るようになっている。このキャップ部材２１は、外側端
面２１ｂの更に外方に半円状に形成した第１係合部２１
ａと、該第１係合部２１ａと上記外側端面２１ｂとを中
央部からの半径長で連結するように形成した連結部であ
る第２係合部２１ｃとを備えている。 本発明に係るトナー補給容器を構成する各部材の材料と
しては、まず容器本体２０は金属板、プラスチック、又
はクラフト紙等の厚紙で中空円筒状に作られている。容
器本体２０を紙管で作る場合にはトナーを収納したのち
防湿性を保持するため、容器本体２０の内周面を樹脂加
工又はポリエチレン、ナイロン、アルミ箔等でラミネー
ト又は塗布加工する必要がある。又、容器本体２０は細
長い円筒状をなすもので、一端が現像装置１１のトナー
補給部７側に係止され、他端がホルダ一部材２２によっ
て捻回されるものであるから、捻回時に変形を生じない
材料でやや堅固に作る必要がある。 容器本体２０の両端開口を閉塞するホルダ一部材２２、
キャップ部材２１を形成する材料は、ポリエチレン、ポ
リプロピレン、ポリ塩化ビニール等のプラスチック材料
が用いられる。そしてその一部に金属材料を用いる場合
もある。 可撓性シール部材２３としては、ポリエチレン、ポリプ
ロピレン、ポリ塩化ビニールビニリデン、ナイロン、ポ
リ塩化ビニール、ポリビニールアセテート、ポリエステ
ル等のプラスチックフィルム材やアルミ箔等の金属材料
を用い、これらの単層材又は積層材として形成する。可
撓性シール部材２３としては、可撓性を有し、且つ引っ
張り強度や曲げ強度を有する材料および膜厚が必要であ
る。また可撓性シール部材２３の容器本体２０への接着
は、両面接着テープ、接着剤、熱接着等によって行われ
る。 第３図は、トナー補給容器９を現像装置１１のトナー補
給部７へ装填する状態を示す斜視図であり、第４図（Ａ
）および第４図（Ｂ）はトナー補給容器９とトナー補給
部７との保合状態を示す斜視図である。 現像装置１１の側方上部には第１図に図示した如くトナ
ー補給部７が設けてあり、該トナー補給部７の補給容器
挿脱穴７ｃに対して前記トナー補給容器９が挿脱可能と
なっている。トナー補給容器９は第３図に図示した如く
容器本体２０のスロット２０ａが上向きになるようにし
て補給容器挿脱穴７ｃに挿入する。この時可撓性シール
部材２３を引き剥がすようにする。 上記補給容器挿脱穴７ｃの開口端部付近には、該挿脱穴
７ｃの円筒壁の下部を外方に突出形成した載置部７ｄを
設けである。該載置部７ｄにトナー補給容器９を載置し
、スロット２０ａが上方を向くようにして可撓性シール
部材２３を引き剥がす等の準備をしたのち、トナー補給
容器９を左右に回動させないようにして補給容器挿脱穴
７ｃに挿入する。この時、把手２２ａを手指で持って行
う。 トナー補給部７の容器挿脱部７ａの奥端部には係合案内
片７ｂが設けられている。該保合案内片７ｂは第３図、
第４図（＾）、第４図（Ｂ）に図示の如く、半円状をな
し容器挿脱部７ａに一体的に形成しである。 該保合案内片７ｂは前述したトナー補給容器９の第１係
合部２１ａおよび第２係合部２１ｃと係合する。 この係合案内片７ｂは、トナー補給容器９の挿入時に前
記第１係合部２１ａおよび第２係合部２１ｃとは干渉し
あわないように形成される。 トナー補給容器９を第４図（Ａ）に示すように、スロッ
ト２０ａを上向きにして容器挿脱部７ａに挿入すると、
第１係合部２１ａが係合案内片７ｂの下方を通過する。 そして外側端面２１ｂがこの保合案内片７ｂに当接して
挿入が停止される。この外側端面２１ｂが保合案内片７
ｂに当接した状態でトナー補給容器９を挿入方向に見て
時計方向に１８０°回転させる。その結果、第４図（Ｂ
）に示す状態に至る。すなわち、第１係合部２１ａは係
合案内片７ｂの内側面に沿って係合し、したがってトナ
ー補給容器９をトナー補給部７から離間させることはで
きない。そしてトナー補給容器９を１８０°回転させる
とスロット２０ａは下方に向きトナーが放出される。こ
の状態で第２係合部２１ｃは係合案内片７Ｃの一方の下
辺端７ｅに到達し、トナー補給容器９のそれ以上の回転
を妨げる。 このようにしてトナー補給容器９をその軸方向に挿入し
たのち、時計方向に１８０°回転すると容器本体２０の
スロット２０ａは真下を向き、トナー補給容器９内に収
納されていたトナーはトナー格納部８内に放出される。 トナー格納部８内のトナーが消費されトナー補給の必要
が生じたときには、トナー補給容器９を交換する。トナ
ー補給容器９を反時計方向に１８０゜回転させる。そう
すると容器本体２０のスロット２０ａが真上を向く。こ
の状態で第１係合部２１ａと係合案内片７ｂとの保合が
解除されトナー補給容器９の引き抜きが可能となる。こ
の状態でトナー補給容器９を引き抜けばスロット２０ａ
は真上を向いており、たとえトナー補給容器９内にトナ
ーが若干残留していたとしても外部に漏出することはな
い。Embodiments of the present invention will be described based on the accompanying drawings. FIG. 1 is a sectional view of a developing device according to the present invention. The developing device 11 includes a toner replenishing section 7, a developer stirring section 13,
A developing section 12 is disposed within a developing device frame 14 . The toner supply section 7 includes a container insertion/removal section 7a and a toner supply container 9.
A toner replenishing device and a toner storage section 8 are provided. The developer stirring section 13 includes a carry-out roller 5 that carries out the toner from the toner storage section 8, a conveyance roller 4 that carries the toner to a stirring position, a supply roller 6 that supplies the stirred developer to the development section, and agitates the developer. A stirring member 3 is provided. Developing section] 2 is a developing sleeve 11 which carries a developer in a thin film on its circumferential surface and develops it by attaching toner to the electrostatic latent image formed on the electrostatic image carrier lO while rotating. The developer layer thickness regulating member 2 for regulating the layer thickness of the developer layer on the developer layer 1 is provided. The toner is temporarily stored in the toner storage section 8 from the toner supply container 9 of the toner supply section 7 . When the toner is consumed by the development and the toner concentration in the toner agitating section 13 becomes less than a predetermined value, the carry-out roller 5 is driven based on the density detection and the toner is carried out from the storage section 8 . The discharged toner is conveyed to a developer stirring position by a conveyance roller 4. At this stirring position, the developer is stirred by the stirring member 3 and the respective components are homogeneously mixed, and the developer is transferred to the developing section 1 by the supply roller 6.
2 and moves to a position where it can be easily captured by the developing sleeve l. The developer is captured by a rotating developing sleeve l having a magnetic roll (not shown) installed therein, and adheres to the circumferential surface of the sleeve l. Then, the developer is formed into a uniform thin layer by the developer layer thickness regulating member 2. As the developing sleeve 1 and the electrostatic image carrier 10 rotate, the electrostatic latent image and the thin layer of developer face each other, and only the toner component is transferred from the developing sleeve 1 to the electrostatic latent image to perform development. In this way, toner is repeatedly carried out from the toner storage section 8, and when the amount of toner in the toner storage section 8 decreases, the remaining amount of toner is detected and the toner supply container 9 is replaced. FIG. 2 is a perspective view of the toner supply container 9 according to the present invention. The toner replenishment container 9 has a toner storage portion in a hollow cylindrical shape. The container body 20 has a hollow cylindrical shape as described above, and both ends thereof are open. A slot 20a in the form of an elongated opening groove having a predetermined width and a predetermined length in the longitudinal direction is cut out in a part of the cylindrical side wall surface of the container body 20, and serves as a toner discharge and fall port. . The insertion rear end (left side) of the container body 20 is a holder member 22.
It is hermetically sealed with adhesive. Holder part 2
2 seals the insertion rear end of the container body 20, and a flat handle 22a protruding to the left is a toner supply container 9.
It serves as a knob for attaching/detaching operations to the toner replenishing section 7 of the developing device 11 and rotating operation during toner replenishment. Since the outer periphery of the slot 20a of the container body 20 is sealed by adhesively fixing the flexible sealing member 23, when the toner supply container 9 is in the storage state before replenishment, it can be stored in the container body 20. The toner that is
There is no leakage from 0a. The sealing member 23 has a length approximately 1.5 times the length in the longitudinal direction of the slot 20a, and first seals the outer peripheral edge of the slot 20a, and then folds the outer peripheral edge of the slot 20a near the right end. It is folded back at the top of the slot 20a, turned over again, and routed, and is bonded and fixed to the upper surface of the visible sealing member or a part of the outer wall of the container body 20 in the middle of the slot 20a. The toner supply container 9 is configured such that after toner is stored in a hollow cylindrical container body 20, a cap member 21 is press-fitted and sealed. This cap member 21 includes a first engaging portion 21 formed in a semicircular shape further outward on the outer end surface 21b.
a, and a second engaging portion 21c which is a connecting portion formed to connect the first engaging portion 21a and the outer end surface 21b with a radial length from the center. Regarding the materials of each member constituting the toner supply container according to the present invention, first, the container body 20 is made of a metal plate, plastic, or cardboard such as kraft paper into a hollow cylindrical shape. When the container body 20 is made of a paper tube, the inner peripheral surface of the container body 20 must be treated with resin or laminated or coated with polyethylene, nylon, aluminum foil, etc. in order to maintain moisture resistance after storing the toner. . Further, the container main body 20 has an elongated cylindrical shape, and one end is locked to the toner replenishing part 7 side of the developing device 11, and the other end is twisted by the holder member 22, so that when the container body 20 is twisted, It needs to be made of a material that does not deform and is somewhat sturdy. a holder member 22 that closes both end openings of the container body 20;
The material used to form the cap member 21 is a plastic material such as polyethylene, polypropylene, or polyvinyl chloride. In some cases, a metal material is used for a part of it. As the flexible sealing member 23, a plastic film material such as polyethylene, polypropylene, polyvinylidene chloride, nylon, polyvinyl chloride, polyvinyl acetate, polyester, or a metal material such as aluminum foil is used, and a single layer material or a metal material such as aluminum foil is used. Formed as a laminate. The flexible seal member 23 requires a material and film thickness that is flexible and has tensile strength and bending strength. Further, the flexible sealing member 23 is bonded to the container body 20 using double-sided adhesive tape, adhesive, thermal bonding, or the like. FIG. 3 is a perspective view showing a state in which the toner supply container 9 is loaded into the toner supply section 7 of the developing device 11, and FIG.
) and FIG. 4(B) are perspective views showing the state in which the toner supply container 9 and the toner supply section 7 are engaged. As shown in FIG. 1, a toner replenishment section 7 is provided at the upper side of the developing device 11, and the toner replenishment container 9 can be inserted into and removed from the replenishment container insertion/removal hole 7c of the toner replenishment section 7. It has become. The toner supply container 9 is inserted into the supply container insertion/removal hole 7c with the slot 20a of the container body 20 facing upward as shown in FIG. At this time, the flexible seal member 23 is peeled off. Near the open end of the replenishment container insertion/removal hole 7c, a mounting portion 7d is provided, which is formed by protruding the lower part of the cylindrical wall of the replenishment container insertion/removal hole 7c. After placing the toner supply container 9 on the placing portion 7d, making preparations such as peeling off the flexible seal member 23 with the slot 20a facing upward, do not rotate the toner supply container 9 left or right. Insert the supply container into the insertion/removal hole 7c in this manner. At this time, hold the handle 22a with your fingers. An engaging guide piece 7b is provided at the rear end of the container insertion/removal portion 7a of the toner replenishing portion 7. The retaining guide piece 7b is shown in FIG.
As shown in FIGS. 4(^) and 4(B), it has a semicircular shape and is integrally formed with the container insertion/removal portion 7a. The retaining guide piece 7b engages with the first engaging portion 21a and the second engaging portion 21c of the toner supply container 9 described above. The engagement guide piece 7b is formed so as not to interfere with the first engagement portion 21a and the second engagement portion 21c when the toner supply container 9 is inserted. When the toner supply container 9 is inserted into the container insertion/removal portion 7a with the slot 20a facing upward as shown in FIG. 4(A),
The first engagement portion 21a passes below the engagement guide piece 7b. Then, the outer end surface 21b comes into contact with this engagement guide piece 7b, and insertion is stopped. This outer end surface 21b is the retaining guide piece 7.
While in contact with b, rotate the toner supply container 9 180° clockwise when looking in the insertion direction. As a result, Figure 4 (B
). That is, the first engaging portion 21a engages along the inner surface of the engagement guide piece 7b, and therefore the toner replenishing container 9 cannot be separated from the toner replenishing portion 7. Then, when the toner supply container 9 is rotated 180 degrees, the slot 20a is directed downward and toner is discharged. In this state, the second engaging portion 21c reaches one lower end 7e of the engaging guide piece 7C, and prevents further rotation of the toner supply container 9. After inserting the toner supply container 9 in its axial direction in this way, when it is rotated 180° clockwise, the slot 20a of the container body 20 faces straight down, and the toner stored in the toner supply container 9 is removed from the toner storage area. Released within 8 days. When the toner in the toner storage section 8 is consumed and it becomes necessary to replenish toner, the toner replenishing container 9 is replaced. Rotate the toner supply container 9 180 degrees counterclockwise. Then, the slot 20a of the container body 20 faces directly upward. In this state, the engagement between the first engaging portion 21a and the engaging guide piece 7b is released, and the toner supply container 9 can be pulled out. If you pull out the toner supply container 9 in this state, the slot 20a
The toner supply container 9 faces directly upward, and even if some toner remains in the toner supply container 9, it will not leak to the outside.

【発明の効果】【Effect of the invention】

以上説明したように、本発明のトナー補給装置は、トナ
ー補給容器を現像装置のトナー補給部へ着脱する際に、
簡単にしかも確実に装着でき、またこの着脱の際に発生
していたトナー漏出を防ぐことが可能となって、周囲を
汚損することのないという効果を奏するものである。さ
らに手指によって把持する把手の近傍に突起等を設けな
いようにできるのでトナー補給容器の交換に際して安全
な交換作業を行うことができる。As explained above, the toner replenishment device of the present invention, when attaching and detaching the toner replenishment container to the toner replenishment section of the developing device,
It can be easily and reliably attached, and it is also possible to prevent toner from leaking out during attachment and detachment, resulting in the effect that the surrounding area will not be contaminated. Furthermore, since no protrusions or the like are provided near the handle that is gripped by fingers, safe replacement work can be performed when replacing the toner supply container.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に係る現像装置の断面図、第２図は本発
明に係るトナー補給容器の斜視図、第３図はトナー補給
容器を現像装置のトナー補給部へ装填する状態を示す斜
視図、第４図（Ａ）および第４図（Ｂ）はトナー補給容
器とトナー補給部との保合状態を示す斜視図である。 ７・・・トナー補給部　　７ａ・・・容器挿脱部７ｂ・
・・保合案内片　　　９・・・トナー補給容器１１・・
・現像装置　　　　２０・・・容器本体２０ａ・・・ス
ロット（トナー放出開口）２１・・・キャップ部材　　
２１ａ・・・第１係合部２１０・・・第２係合部FIG. 1 is a sectional view of a developing device according to the present invention, FIG. 2 is a perspective view of a toner supply container according to the present invention, and FIG. 3 is a perspective view showing a state in which the toner supply container is loaded into the toner supply section of the development device. 4A and 4B are perspective views showing a state in which the toner supply container and the toner supply section are engaged. 7... Toner supply section 7a... Container insertion/removal section 7b.
・Retention guide piece 9 ・Toner supply container 11 ・・
・Developing device 20... Container body 20a... Slot (toner release opening) 21... Cap member
21a...First engaging part 210...Second engaging part

Claims (1)

【特許請求の範囲】[Claims] 周壁の一部にトナー放出開口を有する円筒状トナー補給
容器を現像装置のトナー補給部に装填してトナーを補給
するトナー補給装置において、前記トナー補給部の補給
容器挿入口奥部端面付近に係合案内片を設けると共に、
前記円筒状トナー補給容器の先端部に上記係合案内片に
係合して所定位置以外での上記トナー補給容器の挿脱を
制限する第１係合部と、上記係合案内片に係合して上記
トナー補給容器の自由回転を制限する第２係合部とを設
けたことを特徴とする現像装置におけるトナー補給装置
。In a toner replenishing device that replenishes toner by loading a cylindrical toner replenishing container having a toner discharge opening in a part of the peripheral wall into a toner replenishing section of a developing device, a cylindrical toner replenishing container having a toner discharging opening in a part of the peripheral wall is installed in the toner replenishing section of the developing device. In addition to providing a guide piece,
a first engaging portion that engages with the engagement guide piece at the tip of the cylindrical toner supply container to restrict insertion and removal of the toner supply container outside a predetermined position; and a first engagement portion that engages with the engagement guide piece. and a second engaging portion for restricting free rotation of the toner replenishing container.
JP63115149A 1988-05-10 1988-05-10 Toner replenishing device in developing device Pending JPH01283578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63115149A JPH01283578A (en) 1988-05-10 1988-05-10 Toner replenishing device in developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63115149A JPH01283578A (en) 1988-05-10 1988-05-10 Toner replenishing device in developing device

Publications (1)

Publication Number Publication Date
JPH01283578A true JPH01283578A (en) 1989-11-15

Family

ID=14655526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63115149A Pending JPH01283578A (en) 1988-05-10 1988-05-10 Toner replenishing device in developing device

Country Status (1)

Country Link
JP (1) JPH01283578A (en)

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