JPH01210965A - Image forming device provided with process cartridge - Google Patents
Image forming device provided with process cartridgeInfo
- Publication number
- JPH01210965A JPH01210965A JP63035832A JP3583288A JPH01210965A JP H01210965 A JPH01210965 A JP H01210965A JP 63035832 A JP63035832 A JP 63035832A JP 3583288 A JP3583288 A JP 3583288A JP H01210965 A JPH01210965 A JP H01210965A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- process cartridge
- main body
- image
- cam
- 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 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 abstract 2
- 238000013518 transcription Methods 0.000 abstract 2
- 230000035897 transcription Effects 0.000 abstract 2
- 108091008695 photoreceptors Proteins 0.000 description 7
- 239000000428 dust Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
「産業上の利用分野」
本発明はプロセスカートリッジ、特に画像を形成するプ
ロセス手段をカートリッジ化したプロセスカー） ＩＪ
ツジを備えた電子写真複写装置、静電記録装置等の画像
形成装置に関するものである。[Detailed Description of the Invention] [Object of the Invention] "Industrial Application Field" The present invention relates to a process cartridge, particularly a process car in which a process means for forming an image is a cartridge) IJ
The present invention relates to an image forming apparatus such as an electrophotographic copying apparatus, an electrostatic recording apparatus, etc., equipped with an aperture.
「従来の技術」
従来のこの種のプロセスカートリッジは、電子写真工程
を行う各装置の一部である像担持体として例えば感光体
ドラム・現像装置・りＩＪ−ニング装置拳−次帯電器等
が一つの筐体に収容されカートリッジ化されて、画像形
成装置に着脱可能に構成されている。作動時感光体ドラ
ムの回転につれて移動して来る顕画像と同期をと −っ
て転写位置に転写材を送り込むためレジスト手段として
レジストシャッタ、レジストローラを装置の本体側に備
え、感光体ドラムの回転に対して転写材をレジスト手段
により待機させて同期をとって転写位置に送り込むよう
になっている。``Prior Art'' Conventional process cartridges of this type include, for example, a photosensitive drum, a developing device, an IJ printing device, a secondary charger, etc. as an image carrier that is a part of each device that performs an electrophotographic process. The image forming apparatus is housed in a single housing and formed into a cartridge, and is configured to be removably attached to an image forming apparatus. In order to send the transfer material to the transfer position in synchronization with the developing image that moves as the photoreceptor drum rotates during operation, a registration shutter and a registration roller are provided as registration means on the main body side of the device, and the rotation of the photoreceptor drum In contrast, the transfer material is kept on standby by a registration means and sent to the transfer position in synchronization.
このようなプロセスカートリッジは本体側に装着するこ
とにより本体側に設けた転写帯電器と感光体ドラムが近
接して対向するようになる。When such a process cartridge is mounted on the main body side, the transfer charger provided on the main body side and the photosensitive drum come to be close to each other and face each other.
そのため感光体ドラムはプロセスカートリッジの筐体よ
り露出しなければならないがプロセスカートリッジを本
体側より取外した際に感光体ドラムを保護するように露
光防止シャッタを設けである。Therefore, the photosensitive drum must be exposed from the housing of the process cartridge, but an exposure prevention shutter is provided to protect the photosensitive drum when the process cartridge is removed from the main body.
「発明が解決しようとしている課題」
（１） レジスト手段に転写物として通常使用される
紙の先端が来るため、レジスト手段に紙粉かたまり易い
ので清掃に意を払わなければならない。また、転写帯電
器付近に設けられている除電針も常時転写物と接触して
いるため、紙粉かたまり易い。``Problems to be Solved by the Invention'' (1) Since the leading edge of the paper normally used as a transfer material is placed on the resist means, care must be taken to clean the resist means since paper dust tends to accumulate on the resist means. Further, since the static eliminating needle provided near the transfer charger is constantly in contact with the transferred material, paper dust tends to accumulate.
（２）従来の露光防止シャッタは、本体に装着する際感
光体ドラムの回転軸近辺を中心にして弧を描くように開
閉移動をしていたため、本体内部での開閉に必要なスペ
ースが広かった。(2) When conventional exposure prevention shutters were attached to the main body, they opened and closed in an arc centered around the rotation axis of the photoreceptor drum, which required a large amount of space to open and close inside the main body. .
「課題を解決するための手段」
本発明は本体側に転写材の供給と搬送を行う手段を有し
、本体装置側から送られる像光を導き入れて画像形成を
行う手段を筐体に収容し、前記画像を形成する手段に含
まれる像担持体の運動と給送される転写材の同期をとる
レジスト手段を像担持体の手前で前記筐体に設けたプロ
セスカートリッジを備え、本体側に前記レジスト手段の
制御手段を設けたことを特徴とするプロセスカー） Ｉ
Ｊッジを備えた画像形成装置である。"Means for Solving the Problems" The present invention has a means for supplying and transporting a transfer material on the main body side, and a means for forming an image by introducing image light sent from the main apparatus side is housed in the casing. A process cartridge is provided in the housing in front of the image bearing member, and a process cartridge is provided in the housing in front of the image bearing member, and a registration means for synchronizing the movement of the image bearing member included in the image forming means and the transferred transfer material is provided. A process car characterized by being provided with a control means for the resist means) I
This is an image forming apparatus equipped with a J-edge.
「実施例Ｊ
本発明の一実施例を感光体にレーザ光を走査して記録す
る記録装置を例に説明する。Embodiment J An embodiment of the present invention will be described by taking as an example a recording apparatus that records by scanning a photoreceptor with a laser beam.
第１図〜第３図は本発明の説明図である。まず転写材の
搬送経路に従って順に説明する。第１図において、給紙
カセット１の転写材Ｐは給紙ローラ２、スリップローラ
３を介してレジストシャッタ４に至る。レジストシャッ
タ４は、給紙ローラ２の回転に同期して、図の矢印に示
すように上下方向に昇降する。転写材Ｐはこのレジスト
シャッタ４に突当たることによって、先端が感光体ドラ
ムＤに対して平行になるように規制された後、レジスト
シャッタ４が上方向に上昇することにより、転写材Ｐは
カートリッジＣの内部に進入し、転写帯電器５、穴１ａ
ｂを通り、定着器Ｆを通って本体の外部に排出される。1 to 3 are explanatory diagrams of the present invention. First, the explanation will be given in order according to the conveyance path of the transfer material. In FIG. 1, a transfer material P in a paper feed cassette 1 reaches a registration shutter 4 via a paper feed roller 2 and a slip roller 3. The registration shutter 4 moves up and down in synchronization with the rotation of the paper feed roller 2 as shown by arrows in the figure. The transfer material P hits the registration shutter 4 and is regulated so that its leading edge is parallel to the photoreceptor drum D. Then, the registration shutter 4 moves upward, and the transfer material P is moved into the cartridge. Enter the inside of C, transfer charger 5, hole 1a
b, passes through the fixing device F, and is discharged to the outside of the main body.
上部筐体Ａと下部筐体Ｂとはヒンジ６を中心に開閉自在
である。The upper housing A and the lower housing B can be opened and closed about the hinge 6.
次に本体装置に着脱可能なプロセスカートリッジＣは筐
体１８内に画像形成手段が内蔵されている。該画像形成
手段は、図示矢印の方向に回転する感光体ドラムＤを一
様に帯電する一次帯電器７、レーザビームスキャナＳか
ら送られたレーザ光が反射ミラー１１で反射され窓７ａ
内から入り感光体ドラムＤ上に結像して形成された潜像
を現像する現像器８、転写材Ｐに感光体ドラムＤ上の画
像を転写する転写帯電器５、該感光ドラム感光体ドラ橿
Ｄ上Ｄ上に残留した現像剤を除去するクリーニング器１
ｏである。Next, the process cartridge C, which is removably attachable to the main apparatus, has an image forming means built in the casing 18. The image forming means includes a primary charger 7 that uniformly charges a photoreceptor drum D rotating in the direction of the arrow shown in the figure, and a window 7a in which a laser beam sent from a laser beam scanner S is reflected by a reflection mirror 11.
A developing device 8 enters from inside and develops a latent image formed on the photosensitive drum D, a transfer charger 5 transfers the image on the photosensitive drum D onto a transfer material P, and the photosensitive drum photosensitive drum. A cleaning device 1 that removes the developer remaining on the top of the handle D
It is o.
上部筐体Ａには、光源であるところのレーザビームスキ
ャナ８１反射ミラー１１が配設されている。In the upper housing A, a laser beam scanner 81 and a reflecting mirror 11, which is a light source, are arranged.
第２図はプロセスカートリッジＣの斜視図、第３図はプ
ロセスカートリッジＣの一部を第１図と同断面でみる縦
断面図である。筐体１８には転写材Ｐが送り込まれる側
は二重壁となっており、レジストシャッタ４を案内する
案内部材１８ａが設けられ、レジストシャッタ４は上下
方向のみ移動可能に筐体１８と案内部材１８ａ間に挿入
されている。レジストシャッタ４には転写材Ｐが通過す
るための穴４ｂが設けられている。又案内部材１８ａと
筐体１Ｂを通じて転写材Ｐが通過する穴１３が設けられ
ている。レジストシャッタ４の下端にはカム１２に従動
するカム従動子４ａが設けられている。FIG. 2 is a perspective view of the process cartridge C, and FIG. 3 is a longitudinal sectional view of a part of the process cartridge C, taken along the same cross-section as FIG. 1. The housing 18 has a double wall on the side where the transfer material P is sent, and is provided with a guide member 18a that guides the registration shutter 4, and the registration shutter 4 is movable only in the vertical direction between the housing 18 and the guide member. It is inserted between 18a. The registration shutter 4 is provided with a hole 4b through which the transfer material P passes. Further, a hole 13 is provided through which the transfer material P passes through the guide member 18a and the housing 1B. A cam follower 4 a that follows the cam 12 is provided at the lower end of the registration shutter 4 .
本体側には回転自在に支持され、且つ駆動装置に連結さ
れたカム軸１２ａが配設され、カム軸１２ａにカム１２
が固定されている。A cam shaft 12a is provided on the main body side and is rotatably supported and connected to a drive device.
is fixed.
第３図（Ａ）のような位置にレジストシャッタ４がある
ときは、穴１６はレジストシャッタ４によりふさがれて
おり、転写材Ｐはレジストシャッタ４に先端が当り通過
せず、カム１２が図示矢印方向に回転しカム従動子４ａ
がら離れるとレジストシャッタ４は下降し、第６図（Ｂ
）のような位置にくると穴４ｂと１３が一致して転写材
Ｐが通過する。これによって感光体ドラムＤと転写材Ｐ
の同期をとることができる。When the registration shutter 4 is in the position shown in FIG. 3(A), the hole 16 is blocked by the registration shutter 4, and the tip of the transfer material P hits the registration shutter 4 and does not pass through, so that the cam 12 does not move as shown in the figure. The cam follower 4a rotates in the direction of the arrow.
When the camera moves away from the camera, the registration shutter 4 lowers and
), the holes 4b and 13 align and the transfer material P passes through. As a result, the photoreceptor drum D and the transfer material P
can be synchronized.
第４図（Ａ） 、 （Ｂ）は本体側に設ける装置として
カム１２の代わりに本体側に設けた電磁石１５を用いレ
ジストシャッタ４を導電物質とした例である。レジスト
シャッタ４とカートリッジの案内部材１８ａは引張コイ
ルばね１４によってつながれており、レジストシャッタ
４は上方向に付勢されていて、穴１３はシャッタ４によ
りふさがれ、転写材Ｐの先端はレジストシャッタ４に当
っている（第４図（Ａ））。次に電磁石１５に電流が流
れるとレジストシャッタ４は、引張コイルばね１４に抗
して下方向に引き付けられ穴４ｂと１３は一致し、転写
材Ｐが通過できるような状態ｔどなる（第４図（Ｂ））
。4A and 4B show an example in which an electromagnet 15 provided on the main body side is used instead of the cam 12 as a device provided on the main body side, and the resist shutter 4 is made of a conductive material. The registration shutter 4 and the guide member 18a of the cartridge are connected by a tension coil spring 14, the registration shutter 4 is biased upward, the hole 13 is closed by the shutter 4, and the tip of the transfer material P is connected to the registration shutter 4. (Figure 4 (A)). Next, when a current flows through the electromagnet 15, the resist shutter 4 is attracted downward against the tension coil spring 14, and the holes 4b and 13 are aligned, creating a state where the transfer material P can pass (Fig. 4). (B))
.
第５図は、プロセスカートリッジＯの筺体１８Ｉこヒン
ジ部１６を設はレジストシャッタ１７がヒンジ部１６を
中心に回転可能に配置され、外部手段によって開閉でき
るような構成である。FIG. 5 shows a structure in which a housing 18I of a process cartridge O is provided with a hinge portion 16, and a registration shutter 17 is arranged rotatably around the hinge portion 16, and can be opened and closed by external means.
第１図に示すようにプロセスカートリッジＣの下流側に
設けられている露光防止シャッタ１９は、プロセスカー
） ＩＪツジＣを本体装着時には常に上方に押し上げら
れ、穴１８ｂは開いていて転写材Ｐが通過できるように
なっている。プロセスカートリッジＣを本体より外すと
該シャッタ１９は下方に下り、穴１８ｂを閉じるように
なっている。As shown in FIG. 1, the exposure prevention shutter 19 provided on the downstream side of the process cartridge C is always pushed upward when the IJ screw C is attached to the process car main body, and the hole 18b is open and the transfer material P is It is possible to pass through. When the process cartridge C is removed from the main body, the shutter 19 moves downward and closes the hole 18b.
（旬 レジスト手段部及び除電針部は転写材が例えば紙
の場合紙粉などがたまり汚れやすいが、プロセスカート
リッジ交換と同時にたまった紙粉が除去できる。(If the transfer material is paper, for example, the resist means part and the static elimination needle part tend to get dirty due to the accumulation of paper dust. However, the accumulated paper dust can be removed at the same time as the process cartridge is replaced.)
（２） 従来プロセスカートリッジの転写材の進入側
に設けられていた露光防止用のシャッタを転写材先端を
規制するレジスト手段と兼用するため、コストが安価に
なる。(2) Since the shutter for preventing exposure, which was conventionally provided on the entrance side of the transfer material of the process cartridge, is also used as a resist means for regulating the leading edge of the transfer material, the cost is reduced.
（３）プロセスカートリッジのレジスト手段が上下方向
に開閉可能とすることができるため、開閉に必要なスペ
ースが最小限にすみ、本体の小型化が可能となる。(3) Since the registration means of the process cartridge can be opened and closed in the vertical direction, the space required for opening and closing is minimized, and the main body can be made smaller.
第１図は本発明を実施したプロセスカー） ＩＪツジ装
着時の記録装置の縦断面図、第２図はプロセスカートリ
ッジの一部の斜視図、第３図（Ａｔ。
第６図中）はプロセスカー） ＩＪツジの一部縦断面図
、第４図（Ａ）、第４図（Ｂ）、第５図（蜀、第５図（
Ｂ）は他の実施例を示した縦断面図である。
Ｃ・・プロセスカートリッジ ４・・レジストシャッタ
。Fig. 1 is a longitudinal cross-sectional view of the recording device when the IJ screw is installed in a process car (in which the present invention is implemented), Fig. 2 is a perspective view of a part of the process cartridge, and Fig. 3 (At. in Fig. 6) is a longitudinal cross-sectional view of the recording device when the IJ screw is installed. Figure 4 (A), Figure 4 (B), Figure 5 (Shu, Figure 5 (
B) is a longitudinal sectional view showing another embodiment. C. Process cartridge 4. Registration shutter.
Claims (1)
体装置側から送られる像光を導き入れて画像形成を行う
手段を筐体に収容し、前記画像を形成する手段に含まれ
る像担持体の運動と給送される転写材の同期をとるレジ
スト手段を像担持体の手前で前記筐体に設けたプロセス
カートリッジを備え、本体側に前記レジスト手段の制御
手段を設けたことを特徴とするプロセスカートリッジを
備えた画像形成装置。1. The main body side has means for supplying and transporting the transfer material, and the housing accommodates means for introducing image light sent from the main body device side to form an image, and the means for forming an image includes the means for forming an image. A process cartridge is provided in the casing in front of the image bearing member, and a process cartridge is provided in the housing in front of the image bearing member, and a control means for the registration means is provided on the main body side. An image forming apparatus equipped with a process cartridge characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63035832A JPH01210965A (en) | 1988-02-18 | 1988-02-18 | Image forming device provided with process cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63035832A JPH01210965A (en) | 1988-02-18 | 1988-02-18 | Image forming device provided with process cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01210965A true JPH01210965A (en) | 1989-08-24 |
Family
ID=12452936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63035832A Pending JPH01210965A (en) | 1988-02-18 | 1988-02-18 | Image forming device provided with process cartridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01210965A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0468489A2 (en) * | 1990-07-26 | 1992-01-29 | Konica Corporation | Image forming apparatus |
| JP2004109810A (en) * | 2002-09-20 | 2004-04-08 | Ricoh Co Ltd | Imaging module, image forming apparatus, and package |
-
1988
- 1988-02-18 JP JP63035832A patent/JPH01210965A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0468489A2 (en) * | 1990-07-26 | 1992-01-29 | Konica Corporation | Image forming apparatus |
| JP2004109810A (en) * | 2002-09-20 | 2004-04-08 | Ricoh Co Ltd | Imaging module, image forming apparatus, and package |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4588280A (en) | Image forming apparatus and process unit detachably mountable thereto | |
| EP0437097B1 (en) | Image forming apparatus | |
| JP4614227B2 (en) | Developing cartridge and image forming apparatus employing the same | |
| US6661977B1 (en) | Electrophotographic image forming apparatus and process cartridge | |
| JPH02210482A (en) | Image forming device | |
| JPH0798402B2 (en) | Laser printer | |
| EP0311021B1 (en) | A link mechanism provided between an upper frame and a lower frame of an image forming apparatus | |
| US4737817A (en) | Electrophotographic apparatus | |
| JPS6318367A (en) | Image forming device | |
| KR100320544B1 (en) | Image Forming Device | |
| JPH01210965A (en) | Image forming device provided with process cartridge | |
| US4827308A (en) | Process unit for an imaging apparatus | |
| JPH1115355A (en) | Image forming device | |
| JPH10105019A (en) | Process cartridge and electrophotographic image forming device | |
| US4831407A (en) | Process unit for an imaging apparatus | |
| JP2002333813A (en) | Process cartridge, electrophotographic imaging device and electrophotographic imaging system | |
| JPH07230197A (en) | Image forming device | |
| JP3654788B2 (en) | Image forming apparatus | |
| JPS6281651A (en) | Image forming device | |
| JP3809362B2 (en) | Electrophotographic image forming apparatus | |
| JPH04166977A (en) | Holding device for waste toner bottle | |
| JP3635621B2 (en) | Image forming apparatus | |
| JPH0333872A (en) | Image forming device | |
| JP2930641B2 (en) | Image forming device | |
| JPH11190966A (en) | Image forming device |