JP2003114574A - Device for coupling and separating developing device and hopper - Google Patents
Device for coupling and separating developing device and hopperInfo
- Publication number
- JP2003114574A JP2003114574A JP2002289541A JP2002289541A JP2003114574A JP 2003114574 A JP2003114574 A JP 2003114574A JP 2002289541 A JP2002289541 A JP 2002289541A JP 2002289541 A JP2002289541 A JP 2002289541A JP 2003114574 A JP2003114574 A JP 2003114574A
- Authority
- JP
- Japan
- Prior art keywords
- hopper
- path
- developing device
- developing
- toner
- 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.)
- Granted
Links
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は静電写真式複写機等
の画像形成装置に設けられる現像器とホッパーの結合・
分離装置に係り、詳しくは現像器をホッパーに対して結
合・分離自在に構成した装置に関する。
【０００２】
【発明が解決しようとする課題】本体に対してホッパー
を着脱可能となるように構成した画像形成装置では、そ
のホッパーに現像器が一体化されているため、特に、そ
のホッパーが大きい場合には、現像器の出し入れを容易
におこなえるように構成するのが困難になることがあっ
た。一方、その出し入れを容易化しようとすれば本体が
大型化してしまうという難点があった。
【０００３】本発明はこのような実情に鑑みてなされ、
現像器の出し入れが容易で本体のコンパクト化をも図れ
る現像器とホッパーの結合・分離装置を提供することを
目的としている。
【０００４】
【課題を解決するための手段】本発明は上述の課題を解
決するための手段を以下のように構成している。すなわ
ち、ホッパーに対して現像ユニットを結合・分離自在に
構成した現像器とホッパーの結合・分離装置であって、
ホッパー側トナー搬送路のトナー落し口に対して、現像
器側トナー搬送路の接続口が結合・分離自在となるよう
に、その現像器側トナー搬送路を前記現像ユニットにス
ライド自在に設けると共に、現像器側トナー搬送路が内
部にフィーダと、フィーダの軸を駆動源と連動される軸
に接続する摺動継手とを有し、現像器側トナー搬送路と
結合させる際には、現像器側トナー搬送路の接続口をホ
ッパー側トナー搬送路のトナー落し口に向けてスライド
させるように構成している。
【０００５】
【発明の実施の形態】以下に本発明の現像器とホッパー
の結合・分離装置の実施形態を図面を参照しつつ説明す
る。図１はホッパーの結合・分離装置の斜視図、図２は
その要部分解斜視図で、これらの図において、符号１は
トナー供給用のホッパー、２はホッパー側トナー搬送
路、３はそのホッパー側トナー搬送路２内に設けられた
螺旋式フィーダ、４はトナー搬送路２の端末部に設けら
れたトナー落し口、５はそのトナー落し口４に設けられ
た開閉自在なシャッター、６はホッパー側トナー搬送路
２に対して進退自在な現像器側トナー搬送路、７はその
現像器側トナー搬送路６内に設けられた螺旋式フィー
ダ、８はシャッター５に対して結合・分離自在な接続
口、９は駆動源（図示省略）と接続される歯車で、その
軸１０は摺動継手１１等によって螺旋式フィーダ７の軸
７１と接続されている。１２は現像ユニット１３（図４
参照）に位置固定に設けられたトナー攪拌搬送路であ
る。
【０００６】上述のホッパー１は、画像形成装置本体
（以下本体という）１５（図５参照）の前扉１６を開放
して前方に引き出し自在なドラム側板組立１７に位置固
定に設けられ、現像ユニット１３はそのドラム側板組立
１７に着脱自在に設けられる。そのドラム側板組立１７
（図３，図４参照）には、感光体ドラム１８，帯電ユニ
ット１９，クリーニングユニット２１等が組み込まれて
おり、そのドラム側板組立１７の下部に設けられた摺動
部材２２が本体１５の前後方向に設けられたガイドレー
ル２３に案内されて出し入れできるようになっており、
このドラム側板組立１７を本体１５から引き出した状態
にて、現像ユニット１３をホッパー１に対して結合・分
離できるようになっている。
【０００７】なお、図３の２４，２５は前後の側板、図
４の２１１はクリーニングユニット２１に対する押圧装
置であり、両側板２４，２５間に支持された支軸２１２
の両側部に一対の支持部材２１３を固定してその支軸２
１２に螺合固定した案内軸２１４に押圧部材２１５を案
内させスプリング２１６によってその押圧部材２１５
を、両側板２４，２５間に揺動支持させたクリーニング
ユニット２１の背部に押圧付勢させ、クリーニングブレ
ード（図示省略）を感光体ドラム１８に均等に付勢当接
できるようにしている。
【０００８】上述のホッパーとクリーニングユニット２
１の結合・分離装置２６の詳細は、図２に示され、ホッ
パー側トナー供給路２の端末部には下向きの開口２７が
形成され、その直下に円筒状に開口されたトナー落し口
４を有するシャッター収納部材２８が取り付けられ、そ
のシャッター収納部材２８にシャッター５が回動操作自
在に嵌装される。そのシャッター５は、円筒状体の一部
を切り欠いた開口部５１を有する本体５２と、その本体
５２の端部に取り付けられた操作片５３とよりなり、そ
の本体５２の端部には、開口部５１の一端と連通するキ
ー溝５４が形成されている。これに対して、現像器側ト
ナー搬送路６の接続口８には、ホッパー側トナー搬送路
２の開口２７と対応する上向きの開口８１が形成され、
その開口８１の一側にその現像器側トナー搬送路６の移
動方向（Ｙ方向）にキー８２が形成されている。
【０００９】このような構成により、現像器側トナー搬
送路６をホッパー側トナー搬送路２と結合させる際に
は、図示のように操作片５３を上方に向けた位置状態と
して、レバー６１（図５参照）を操作して、現像器側ト
ナー搬送路６をホッパー側トナー搬送路２のトナー落し
口４に向けてスライドさせ、キー８２をキー溝８１に嵌
挿させることにより、その接続口８をシャッター５の本
体５２内に挿入結合できるようになっており（図３参
照）、その間、シャッター５によって、開口２７が閉じ
られトナーが洩れ出ることのないようにし、その接続口
８の挿入が完了した時点で、操作片５３を図２の反時計
回りに回動させてその開口部５１を両開口２７，８１と
対応させることにより、ホッパー側から現像器側へトナ
ーを供給できるようにすると共に、この時、キー８２が
キー溝５４から外れてシャッター５の開口部５１の側部
に当接し、接続口８がシャッター５にラッチされ結合が
完了する。なお、この時点で現像ユニット１３を前後の
固定レバー（図示省略）によってドラム側板組立１７に
固定する。
【００１０】一方、現像ユニット１３をドラム側板組立
１７から分離する際には、まず、操作片５３を起立させ
てホッパー側の開口２７をシャッター５で閉じ、かつ、
そのキー溝５４をキー８２と対応させてラッチを解除し
た後、現像器側トナー搬送路６を後退させれば、接続口
８をシャッター５の本体５２から分離させることがで
き、現像ユニット１３をドラム側板組立１７に固定して
いる前・後の固定レバーを外せば、その現像ユニット１
３のみ取り出すことができる。
【００１１】以上のような結合・分離装置２６により、
ホッパー１の容量が大きい場合でも、そのホッパー１を
ドラム側板組立１７に固定したままで、画像形成装置を
大型化することなくコンパクトにして、現像ユニット１
３のみをきわめて容易に着脱できるように構成すること
が可能となる。
【００１２】
【発明の効果】以上説明したように、本発明の現像器と
ホッパーの結合・分離装置によれば、ホッパーが大きい
場合でも、画像形成装置本体をコンパクトなものとし
て、現像ユニットのみを容易に取り出せるようにするこ
とができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as an electrostatographic copying machine.
The present invention relates to a separating device, and more particularly, to a device in which a developing device is configured to be freely coupled to and separated from a hopper. [0004] In an image forming apparatus in which a hopper can be attached to and detached from a main body, a developing device is integrated with the hopper. In some cases, it may be difficult to configure the developing device so that it can be easily taken in and out. On the other hand, there was a problem that the main body would be enlarged if it was attempted to easily put it in and out. [0003] The present invention has been made in view of such circumstances,
It is an object of the present invention to provide a coupling / separation device for a developing device and a hopper, which makes it easy to take the developing device in and out, and can also make the main body compact. [0004] The present invention has the following means for solving the above-mentioned problems. That is, a developing device and a hopper combining / separating device configured so that the developing unit can be freely combined / separated from the hopper,
The developing unit-side toner transport path is slidably provided in the developing unit so that the connection port of the developing unit-side toner transport path can be freely coupled and separated from the toner dropping port of the hopper-side toner transport path . The developing device-side toner conveyance path has a feeder inside, and a sliding joint that connects a shaft of the feeder to a shaft that is interlocked with the drive source. The connection port of the toner transport path is configured to slide toward the toner dropping port of the hopper side toner transport path. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a device for connecting and separating a developing device and a hopper according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a hopper combining / separating apparatus, and FIG. 2 is an exploded perspective view of a main part thereof. In these figures, reference numeral 1 denotes a hopper for supplying toner, 2 denotes a hopper side toner conveying path, and 3 denotes the hopper A spiral feeder provided in the side toner transport path 2, a toner drop port 4 provided at a terminal portion of the toner transport path 2, a shutter 5 provided in the toner drop port 4, which can be opened and closed, and a hopper 6. A developing unit-side toner conveying path that can move forward and backward with respect to the side-side toner conveying path 2; a spiral feeder 7 provided in the developing unit-side toner conveying path 6; The mouth 9 is a gear connected to a drive source (not shown), and the shaft 10 is connected to the shaft 71 of the spiral feeder 7 by a sliding joint 11 or the like. 12 is a developing unit 13 (FIG. 4)
(See FIG. 1). The above-mentioned hopper 1 is provided at a position fixed to a drum side plate assembly 17 which can be opened forward by opening a front door 16 of an image forming apparatus main body (hereinafter referred to as a main body) 15 (see FIG. 5). Reference numeral 13 denotes a drum side plate assembly 17 which is detachably provided. Drum side plate assembly 17
3 and 4, a photosensitive drum 18, a charging unit 19, a cleaning unit 21 and the like are incorporated, and a sliding member 22 provided at a lower portion of the drum side plate assembly 17 has front and rear portions of the main body 15. It is designed to be guided in and out of the guide rail 23 provided in the direction,
With the drum side plate assembly 17 pulled out of the main body 15, the developing unit 13 can be connected to and separated from the hopper 1. In FIG. 3, reference numerals 24 and 25 denote front and rear side plates, and reference numeral 211 in FIG. 4 denotes a pressing device for the cleaning unit 21, which is a support shaft 212 supported between the side plates 24 and 25.
A pair of support members 213 are fixed to both sides of the
The pressing member 215 is guided by a guide shaft 214 screwed and fixed to the pressing member 215 by a spring 216.
Is pressed against the back of the cleaning unit 21 swingably supported between the side plates 24 and 25 so that the cleaning blade (not shown) can be evenly pressed against the photosensitive drum 18. The above-mentioned hopper and cleaning unit 2
The details of the coupling / separation device 1 are shown in FIG. 2, and a downward opening 27 is formed at the end of the hopper-side toner supply path 2, and the cylindrical toner opening 4 is formed directly below the opening 27. The shutter housing member 28 is mounted, and the shutter 5 is rotatably fitted to the shutter housing member 28. The shutter 5 includes a main body 52 having an opening 51 in which a part of a cylindrical body is cut out, and an operation piece 53 attached to an end of the main body 52. A key groove 54 communicating with one end of the opening 51 is formed. On the other hand, an upward opening 81 corresponding to the opening 27 of the hopper-side toner transport path 2 is formed in the connection port 8 of the developer-side toner transport path 6,
A key 82 is formed on one side of the opening 81 in the moving direction (Y direction) of the developing device side toner transport path 6. With such a configuration, when the toner transport path 6 on the developing device side is coupled with the toner transport path 2 on the hopper side, the operating piece 53 is set to the upward position as shown in FIG. 5), the developing device side toner transport path 6 is slid toward the toner dropping port 4 of the hopper side toner transport path 2, and the key 82 is inserted into the key groove 81, thereby connecting the connection port 8. Can be inserted into the main body 52 of the shutter 5 (see FIG. 3), during which the opening 27 is closed by the shutter 5 so that toner does not leak out. When the operation is completed, the operation piece 53 is rotated counterclockwise in FIG. 2 so that the opening 51 corresponds to both the openings 27 and 81 so that toner can be supplied from the hopper side to the developing device side. Rutotomoni, this time, the key 82 abuts the side of the opening 51 of the shutter 5 deviates from the keyway 54, connecting port 8 is completed is latched to the shutter 5 binding. At this time, the developing unit 13 is fixed to the drum side plate assembly 17 by front and rear fixing levers (not shown). On the other hand, when separating the developing unit 13 from the drum side plate assembly 17, first, the operation piece 53 is erected, the opening 27 on the hopper side is closed by the shutter 5, and
After releasing the latch by making the key groove 54 correspond to the key 82, the connecting port 8 can be separated from the main body 52 of the shutter 5 by retreating the developing device side toner conveying path 6, and the developing unit 13 If the front and rear fixing levers fixed to the drum side plate assembly 17 are released, the developing unit 1
Only 3 can be taken out. With the above-described coupling / separation device 26,
Even when the capacity of the hopper 1 is large, the image forming apparatus is made compact without increasing the size of the developing unit 1 while the hopper 1 is fixed to the drum side plate assembly 17.
It is possible to configure so that only 3 can be attached and detached very easily. As described above, according to the coupling / separation device of the developing device and the hopper of the present invention, even if the hopper is large, the image forming apparatus main body is made compact and only the developing unit is used. It can be easily taken out.
【図面の簡単な説明】
【図１】本発明の現像器のホッパーの結合・分離装置の
一実施形態を示す斜視図である。
【図２】同シャッターの組付説明図である。
【図３】同現像ユニットの平面図である。
【図４】同ドラム側板組立の構成図である。
【図５】同ドラム側板組立を画像形成装置本体から引き
出した状態の斜視説明図である。
【符号の説明】
１…ホッパー、２…ホッパー側トナー搬送路、４…トナ
ー落し口、５…シャッター、６…現像器側トナー搬送
路、７…螺旋式フィーダ、７１…軸、８…接続口、９…
駆動源、１０…軸、１１…摺動継手、１３…現像ユニッ
ト。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing one embodiment of a hopper coupling / separation device of a developing device according to the present invention. FIG. 2 is an explanatory view for assembling the shutter. FIG. 3 is a plan view of the developing unit. FIG. 4 is a configuration diagram of the drum side plate assembly. FIG. 5 is a perspective explanatory view of a state where the drum side plate assembly is pulled out from an image forming apparatus main body. DESCRIPTION OF SYMBOLS 1 ... hopper, 2 ... Hopper side toner transport path, 4 ... Toner dropout port, 5 ... Shutter, 6 ... Developer side toner transport path, 7 ... Spiral feeder, 71 ... Shaft, 8 ... Connection port , 9 ...
Drive source, 10: shaft, 11: sliding joint, 13: developing unit.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田名辺 謙一 大阪市中央区玉造１丁目２番28号 京セラ ミタ株式会社内 (72)発明者 岡本 克巳 大阪市中央区玉造１丁目２番28号 京セラ ミタ株式会社内 (72)発明者 渡木 龍司 大阪市中央区玉造１丁目２番28号 京セラ ミタ株式会社内 Ｆターム(参考） 2H077 AA09 AA12 AA26 AA35 AB02 AB18 AC02 BA09 GA04 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kenichi Tanabe Kyocera 1-2-2, Tamazo, Chuo-ku, Osaka-shi Mita Corporation (72) Inventor Katsumi Okamoto Kyocera 1-2-2, Tamazo, Chuo-ku, Osaka-shi Mita Corporation (72) Inventor Ryuji Wataki Kyocera 1-2-2, Tamazo, Chuo-ku, Osaka-shi Mita Corporation F term (reference) 2H077 AA09 AA12 AA26 AA35 AB02 AB18 AC02 BA09 GA04
Claims (1)
分離自在に構成した現像器とホッパーの結合・分離装置
であって、ホッパー側トナー搬送路のトナー落し口に対
して、現像器側トナー搬送路の接続口が結合・分離自在
となるように、その現像器側トナー搬送路を前記現像ユ
ニットにスライド自在に設けると共に、現像器側トナー
搬送路が内部にフィーダと、フィーダの軸を駆動源と連
動される軸に接続する摺動継手とを有し、現像器側トナ
ー搬送路と結合させる際には、現像器側トナー搬送路の
接続口をホッパー側トナー搬送路のトナー落し口に向け
てスライドさせるように構成した現像器とホッパーの結
合・分離装置。Claims 1. A developing unit is connected to a hopper.
A separating / connecting device for a developing device and a hopper configured to be separable, such that a connection port of the developing device-side toner transport path is freely coupled / separable to a toner dropping port of the hopper-side toner transport path. The developing-unit-side toner conveying path is slidably provided in the developing unit , and the developing-unit-side toner conveying path has a feeder therein and a sliding joint for connecting a feeder shaft to a shaft interlocked with a drive source. When the developing device is connected to the toner conveying path, the connecting port of the developing device side toner conveying path is slid toward the toner dropping port of the hopper side toner conveying path. Separation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002289541A JP3992278B2 (en) | 2002-10-02 | 2002-10-02 | Developer / hopper combination / separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002289541A JP3992278B2 (en) | 2002-10-02 | 2002-10-02 | Developer / hopper combination / separation device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01990697A Division JP3382111B2 (en) | 1997-01-18 | 1997-01-18 | Coupling / separation device for developing unit and hopper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003114574A true JP2003114574A (en) | 2003-04-18 |
| JP3992278B2 JP3992278B2 (en) | 2007-10-17 |
Family
ID=19197152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002289541A Expired - Fee Related JP3992278B2 (en) | 2002-10-02 | 2002-10-02 | Developer / hopper combination / separation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3992278B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008134303A (en) * | 2006-11-27 | 2008-06-12 | Canon Inc | Image forming apparatus |
| JP2010066581A (en) * | 2008-09-11 | 2010-03-25 | Canon Inc | Image forming device |
| JP2014048510A (en) * | 2012-08-31 | 2014-03-17 | Brother Ind Ltd | Image forming device |
-
2002
- 2002-10-02 JP JP2002289541A patent/JP3992278B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008134303A (en) * | 2006-11-27 | 2008-06-12 | Canon Inc | Image forming apparatus |
| JP2010066581A (en) * | 2008-09-11 | 2010-03-25 | Canon Inc | Image forming device |
| JP2014048510A (en) * | 2012-08-31 | 2014-03-17 | Brother Ind Ltd | Image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3992278B2 (en) | 2007-10-17 |
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