JPS62273585A - Driving device for photosensitive body - Google Patents
Driving device for photosensitive bodyInfo
- Publication number
- JPS62273585A JPS62273585A JP61116941A JP11694186A JPS62273585A JP S62273585 A JPS62273585 A JP S62273585A JP 61116941 A JP61116941 A JP 61116941A JP 11694186 A JP11694186 A JP 11694186A JP S62273585 A JPS62273585 A JP S62273585A
- Authority
- JP
- Japan
- Prior art keywords
- cam
- photosensitive body
- photoreceptor
- gear
- driving
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 108091008695 photoreceptors Proteins 0.000 description 34
- 230000002411 adverse Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
イ、発明の目的
〔産業上の利用分野〕
本発明は、電子写真複写機・レーザビームプリンタ等の
静電写真記録装置における感光体の駆動装置に関する。Detailed Description of the Invention 3. Detailed Description of the Invention A. Object of the Invention [Industrial Field of Application] The present invention is directed to a method for driving a photoreceptor in an electrophotographic recording apparatus such as an electrophotographic copying machine or a laser beam printer. Regarding equipment.
この種の静電写真記録装置において、感光体上の残留ト
ナーを除去するブレード・ローラ等のクリーニング部材
が感光体の軸方向同一位置で摺擦することによるドラム
の損傷を防ぐため、あるいはレーザビームプリンタにお
いては同一の印字パターンが感光体の軸方向同一位置に
繰り返し像露光されることによる感光層の劣化を防止す
るため 。In this type of electrostatic photographic recording device, cleaning members such as blades and rollers that remove residual toner on the photoreceptor are used to prevent damage to the drum due to rubbing at the same position in the axial direction of the photoreceptor, or to prevent damage to the drum caused by laser beams. In printers, this is to prevent deterioration of the photosensitive layer due to repeated image exposure of the same print pattern at the same axial position on the photosensitive member.
に、感光体を回転させるのと同時に軸方向に微速な往復
運動をさせるものが、種々提案されている（例えば特公
昭５９−１１９１０号、特開昭５９−ｆ３９７８５号公
報参照）。Various types of photoreceptors have been proposed in which the photoreceptor is rotated and at the same time is moved back and forth at a very low speed in the axial direction (see, for example, Japanese Patent Publication No. 59-11910 and Japanese Patent Application Laid-Open No. 59-F39785).
上記の公知例に示すように感光体の回転駆動機構と、感
光体を軸方向に往復直線運動させるカム機構等の駆動機
構とを感光体の一端側にまとめて配置するものは、既存
の静電写真記録袋とに上記の往復直線駆動機構を組込む
場合に、感光体の位置を軸方向にずらさないと組込むこ
とができない等の問題がある。As shown in the above-mentioned known example, a photoconductor rotation drive mechanism and a drive mechanism such as a cam mechanism that moves the photoconductor in a reciprocating linear motion in the axial direction are arranged together at one end of the photoconductor. When incorporating the above-mentioned reciprocating linear drive mechanism into an electrophotographic recording bag, there are problems such as the inability to do so without shifting the position of the photoreceptor in the axial direction.
そこで第２図に示すように感光体の回転駆動機構と反対
側に往復直線駆動機構を配置してドラム回転駆動用モー
タとは別のモータで駆動させるものが知られているが、
別途モータを備えるのは不経済であり、また上記の両モ
ータを同期して駆動させるための複雑な制御装置等を必
要とする。Therefore, as shown in FIG. 2, it is known that a reciprocating linear drive mechanism is arranged on the opposite side of the photoconductor rotation drive mechanism and is driven by a motor separate from the drum rotation drive motor.
Providing a separate motor is uneconomical, and also requires a complicated control device or the like to drive both of the motors in synchronization.
更に、第３図のようにレジスタローラ等の紙送りローラ
を駆動源として用いるものも知られているが、そのロー
ラは断続的に回転させるものであるから、その断続時の
衝撃が滑らかであるべき感光体の回転に悪影響を及ぼし
画像の悪化をまねく等の問題があった。Furthermore, as shown in Fig. 3, there is a known method that uses a paper feed roller such as a register roller as a drive source, but since the roller is rotated intermittently, the impact at the time of intermittence is smooth. There have been problems such as adversely affecting the rotation of the photoreceptor and resulting in deterioration of the image.
また、上記のように紙送りローラまたはモータを駆動源
とする往復直線駆動機構を既存の静電写真記録装置に組
付ける場合には設計の自由度が低く、とりまとめに苦慮
する。また上記の往復直線駆動機構を１つのユニットと
して構成することが難しく、シかも組立性も悪い等の問
題があった。Furthermore, when a reciprocating linear drive mechanism using a paper feed roller or a motor as a drive source is assembled into an existing electrostatic photographic recording apparatus as described above, the degree of freedom in design is low and it is difficult to assemble the mechanism. Furthermore, it is difficult to construct the above-mentioned reciprocating linear drive mechanism as a single unit, and there are also problems such as poor assembly performance.
本発明は上記の問題点を解決することを目的とする。The present invention aims to solve the above problems.
口１発明の構成
〔問題点を解決するための手段〕
本発明は、感光体の一端側に該感光体の回転駆動機構を
配置し、感光体の他端側に該感光体の軸方向往復直線駆
動機構を配置したものにおいて、上記往復直線駆動機構
を感光体の回転により駆動するようにしたことを特徴と
する感光体の駆動装置である。1. Structure of the Invention [Means for Solving the Problems] The present invention provides a rotational drive mechanism for the photoreceptor at one end of the photoreceptor, and an axial reciprocating mechanism for the photoreceptor at the other end of the photoreceptor. A photoreceptor drive device is provided with a linear drive mechanism, characterized in that the reciprocating linear drive mechanism is driven by rotation of the photoreceptor.
感光体の回転に連動して往復直線駆動機構が駆動される
。従って往復直線駆動機構を駆動するためのモータ等が
不要となり、また感光体の回転駆動機構と往復直線駆動
機構とを同時に駆動させるための制御装置等が不要とな
る。A reciprocating linear drive mechanism is driven in conjunction with the rotation of the photoreceptor. Therefore, a motor or the like for driving the reciprocating linear drive mechanism becomes unnecessary, and a control device or the like for simultaneously driving the photoreceptor rotational drive mechanism and the reciprocating linear drive mechanism becomes unnecessary.
以下第１図の実施例に基づいて具体的に説明する０図に
おいて１は感光体、２はその感光体１を回転自由に、か
つ軸方向に移動可能に支持する軸で、その支持軸２の一
端２ａを支持部材３により装置本体の後側板４に取付け
、他端２ｂは芯決め板５により前側板６に位置調節可能
に取付ける。The following will be explained in detail based on the embodiment shown in FIG. One end 2a is attached to the rear side plate 4 of the main body of the apparatus by a support member 3, and the other end 2b is attached to the front side plate 6 by a centering plate 5 so that its position can be adjusted.
その芯決め板５は前側板６に形成した感光体装填用の開
口６ａを塞ぐ構成である。The centering plate 5 is configured to close an opening 6a formed in the front plate 6 for loading a photoreceptor.
Ｍｌは感光体１の回転駆動用モータで、その出力軸７上
の歯車８から、支持軸２に回転自由に設けた歯車９に伝
動し、その歯車９からたわみ継手（スラストフレキシブ
ルジヨイント）１０を介して感光体１を回転させる。Ml is a motor for rotationally driving the photoreceptor 1, and power is transmitted from a gear 8 on the output shaft 7 to a gear 9 rotatably provided on the support shaft 2, and from the gear 9 to a flexible joint (thrust flexible joint) 10. The photoreceptor 1 is rotated through the .
そのたわみ継手１０は、向い合せに配置しＥ 一対の環
状ばね板１０ａ１１１Ｏｂの一箇所をピン１１等で結合
し、それと直径方向反対側において各ばね板１０ａ・１
０ｂを歯車９・感光体１の端板１ａにそれぞれピン１２
・１２等で固着したもので、感光体１の軸方向の移動を
許容して歯車９から感光体１に回転トルクを伝達する。The flexible joint 10 is arranged facing each other, and connects a pair of annular spring plates 10a and 111Ob at one point with a pin 11 or the like, and each spring plate 10a and 1 on the opposite side in the diametrical direction.
0b to the gear 9 and the end plate 1a of the photoreceptor 1, respectively, to the pin 12.
・It is fixed with 12 or the like, and transmits the rotational torque from the gear 9 to the photoreceptor 1 while allowing the photoreceptor 1 to move in the axial direction.
１３は感光体１の一端側において支持軸２に回転可能に
取付けた円筒カムで、その周面に波状に形成したカム溝
１３ａに感光体１に固定のカムフォロア１４を係合させ
る。１５は上記円筒カム１３と一体に設けたカム駆動歯
車である。A cylindrical cam 13 is rotatably attached to the support shaft 2 at one end of the photoreceptor 1, and a cam follower 14 fixed to the photoreceptor 1 is engaged with a cam groove 13a formed in a wave shape on the circumferential surface of the cylindrical cam. 15 is a cam drive gear provided integrally with the cylindrical cam 13.
以上の構成は前記第２図・第３図の従来例と同様である
。The above configuration is similar to the conventional example shown in FIGS. 2 and 3.
そして従来は第２図・第３図のように専用のモータＭ２
または紙送りローラ１６から歯車１７〜１９を介してカ
ム駆動歯車１５を駆動させるもので、前記の問題があっ
た。Conventionally, a dedicated motor M2 was used as shown in Figures 2 and 3.
Alternatively, the cam drive gear 15 is driven from the paper feed roller 16 via the gears 17 to 19, which has the above-mentioned problem.
そこで本発明はカム１３に対面する感光体１の端板ｌｂ
にカム駆動用歯車２０を設け、その歯車２０から同軸一
体に設けた中間歯車２１・２２を介してカム駆動歯車１
５を回転させるようにしたものである。２３は中間歯車
２１・２２の軸受部材である。Therefore, the present invention provides an end plate lb of the photoreceptor 1 facing the cam 13.
A cam drive gear 20 is provided at the cam drive gear 1, and the cam drive gear 1 is connected to the cam drive gear 1 via intermediate gears 21 and 22 provided coaxially with the gear 20.
5 is rotated. 23 is a bearing member for the intermediate gears 21 and 22.
そのカム１３の回転速度は、感光体１よりも僅かに遅く
なるように設定され、その速度差による円周方向のずれ
によってカムフォロア１４を介して感光体１を軸方向に
僅かづつ移動させる構成である。The rotational speed of the cam 13 is set to be slightly slower than that of the photoreceptor 1, and the photoreceptor 1 is moved slightly in the axial direction via the cam follower 14 due to the circumferential shift caused by the speed difference. be.
ハ、発明の効果
本発明は上記のように感光体ｌを軸方向に移動させるた
めのカム１３を感光体１の回転力で回動させるようにし
たので、前記第２図の従来例のようにカム１３を回動さ
せるための専用のモータＭ２を用いる必要がないので安
価に製作できる。また前記第３図例のように紙送りロー
ラ１６でカムｌ３を回動させる場合のようにローラ１６
の断続的な回転により感光体１の回転に悪影響を及ぼす
こともない。C. Effects of the Invention In the present invention, as described above, the cam 13 for moving the photoreceptor l in the axial direction is rotated by the rotational force of the photoreceptor 1, so that it is similar to the conventional example shown in FIG. Since there is no need to use a dedicated motor M2 for rotating the cam 13, it can be manufactured at low cost. In addition, as in the example in FIG.
The intermittent rotation of the photoreceptor 1 does not adversely affect the rotation of the photoreceptor 1.
さらに感光体１からカム１３に伝動する機構を感光体ｌ
の一端側にコンパクトに配置できるので、ユニット化が
容易であると共に、組立性もよい、また既存の静電写真
記録装置への組付けも容 ・易である等の効果がある。Furthermore, a mechanism for transmitting power from the photoconductor 1 to the cam 13 is installed on the photoconductor l.
Since it can be compactly arranged at one end of the unit, it is easy to unitize, has good assembly properties, and can be easily assembled into an existing electrostatic photographic recording device.
第１図は本発明感光体駆動装置の縦断面図、第２図は従
来例の同上図、第３図は他の従来例の一部の縦断面図で
ある。
１は感光体、２はその支持軸、Ｍｌ・８〜１０は感光体
回転駆動機構、１３・１４は感光体を軸方向に往復直線
運動させるカム機構、２０〜２２はそのカム機構の駆動
用歯車。FIG. 1 is a longitudinal sectional view of the photoreceptor driving device of the present invention, FIG. 2 is a longitudinal sectional view of a conventional example, and FIG. 3 is a longitudinal sectional view of a part of another conventional example. 1 is a photoreceptor, 2 is its support shaft, Ml.8 to 10 are photoreceptor rotation drive mechanisms, 13 and 14 are cam mechanisms for linearly reciprocating the photoreceptor in the axial direction, and 20 to 22 are for driving the cam mechanism. gear.
Claims (1)
し、感光体の他端側に該感光体の軸方向往復直線駆動機
構を配置したものにおいて、 上記往復直線駆動機構を感光体の回転により駆動するよ
うにしたことを特徴とする感光体の駆動装置。(1) A rotary drive mechanism for the photoconductor is disposed at one end of the photoconductor, and an axial reciprocating linear drive mechanism for the photoconductor is disposed at the other end of the photoconductor, wherein the reciprocating linear drive mechanism is connected to the photoconductor. A photoconductor drive device characterized in that it is driven by the rotation of its body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61116941A JPS62273585A (en) | 1986-05-21 | 1986-05-21 | Driving device for photosensitive body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61116941A JPS62273585A (en) | 1986-05-21 | 1986-05-21 | Driving device for photosensitive body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62273585A true JPS62273585A (en) | 1987-11-27 |
Family
ID=14699502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61116941A Pending JPS62273585A (en) | 1986-05-21 | 1986-05-21 | Driving device for photosensitive body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62273585A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012150386A (en) * | 2011-01-21 | 2012-08-09 | Kyocera Document Solutions Inc | Image forming apparatus |
| JP2016157047A (en) * | 2015-02-26 | 2016-09-01 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
-
1986
- 1986-05-21 JP JP61116941A patent/JPS62273585A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012150386A (en) * | 2011-01-21 | 2012-08-09 | Kyocera Document Solutions Inc | Image forming apparatus |
| JP2016157047A (en) * | 2015-02-26 | 2016-09-01 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
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