JPH02134569U - - Google Patents
Info
- Publication number
- JPH02134569U JPH02134569U JP4292989U JP4292989U JPH02134569U JP H02134569 U JPH02134569 U JP H02134569U JP 4292989 U JP4292989 U JP 4292989U JP 4292989 U JP4292989 U JP 4292989U JP H02134569 U JPH02134569 U JP H02134569U
- Authority
- JP
- Japan
- Prior art keywords
- drum
- photoconductor drum
- flange
- plate member
- rear flange
- 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
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 108091008695 photoreceptors Proteins 0.000 claims 2
Description
第１図は本考案の実施例の構成を示す断面図、
第２図は従来の感光体ドラム駆動装置の一例の構
成を示す斜視図、第３図はその手前側の部分の構
成を示す分解斜視図、第４図は湿式複写機の現像
液の循環経路を示す図式図である。
１……ドラム面板、２……ドラムノブ、３……
ドラム軸、４……ドラム固定用ばね、５……前フ
ランジ、６……感光体ドラム、６ａ……段部、７
……ドラムガイド、８……後フランジ、９……駆
動チエーン、１０……ドラム駆動プーリ、１１…
…解除板（板部材）、１２……ドラム解除用スプ
リング。
FIG. 1 is a sectional view showing the configuration of an embodiment of the present invention;
Fig. 2 is a perspective view showing the structure of an example of a conventional photosensitive drum drive device, Fig. 3 is an exploded perspective view showing the structure of the front side thereof, and Fig. 4 is a circulation path for developer of a wet-type copying machine. FIG. 1...Drum face plate, 2...Drum knob, 3...
Drum shaft, 4... Drum fixing spring, 5... Front flange, 6... Photosensitive drum, 6a... Step portion, 7
... Drum guide, 8 ... Rear flange, 9 ... Drive chain, 10 ... Drum drive pulley, 11 ...
...Release plate (plate member), 12...Drum release spring.
Claims (1)
後フランジと、該ドラム軸に着脱及び軸方向に摺
動自在に支持され、解除可能な第１圧縮ばねによ
り前記後フランジに近付く方向に付勢可能な前フ
ランジとにより感光体ドラムを挟持し、感光体ド
ラムを回転駆動する湿式複写機の感光体ドラム駆
動装置において、 前記感光体ドラム内面の後端付近に設けた段部
に係合する板部材と、該板部材と前記後フランジ
との間に介在し、前記第１圧縮ばねよりも弱く、
現像液による後フランジと感光体ドラムとの固着
力よりも強い第２圧縮ばねとを設けたことを特徴
とする感光体ドラム駆動装置。[Claims for Utility Model Registration] The rear flange is fixed to a drum shaft rotated by a drive source, and the rear flange is supported by the drum shaft in a detachable and slidable manner in the axial direction and is releasable. In a photoconductor drum drive device for a wet-type copying machine that rotationally drives a photoconductor drum by sandwiching the photoconductor drum between a front flange that can be biased in a direction approaching the flange, the photoconductor drum is provided near the rear end of the inner surface of the photoconductor drum. a plate member that engages with the stepped portion; a plate member that is interposed between the plate member and the rear flange, and is weaker than the first compression spring;
A photoreceptor drum driving device characterized in that a second compression spring is provided that is stronger than the adhesion force between the rear flange and the photoreceptor drum caused by the developer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4292989U JPH02134569U (en) | 1989-04-14 | 1989-04-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4292989U JPH02134569U (en) | 1989-04-14 | 1989-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02134569U true JPH02134569U (en) | 1990-11-08 |
Family
ID=31554904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4292989U Pending JPH02134569U (en) | 1989-04-14 | 1989-04-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02134569U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002019070A (en) * | 2000-05-17 | 2002-01-22 | Nexpress Solutions Llc | Replaceable cylinder member in electrographic printing unit |
| JP2002113839A (en) * | 2000-05-17 | 2002-04-16 | Nexpress Solutions Llc | Apparatus for positioning cylinder sleeve on support |
| JP2010224519A (en) * | 2009-02-27 | 2010-10-07 | Ricoh Co Ltd | Photoreceptor drum device, and image forming device using the same |
-
1989
- 1989-04-14 JP JP4292989U patent/JPH02134569U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002019070A (en) * | 2000-05-17 | 2002-01-22 | Nexpress Solutions Llc | Replaceable cylinder member in electrographic printing unit |
| JP2002113839A (en) * | 2000-05-17 | 2002-04-16 | Nexpress Solutions Llc | Apparatus for positioning cylinder sleeve on support |
| JP2010224519A (en) * | 2009-02-27 | 2010-10-07 | Ricoh Co Ltd | Photoreceptor drum device, and image forming device using the same |