JPH0314646U - - Google Patents
Info
- Publication number
- JPH0314646U JPH0314646U JP7361989U JP7361989U JPH0314646U JP H0314646 U JPH0314646 U JP H0314646U JP 7361989 U JP7361989 U JP 7361989U JP 7361989 U JP7361989 U JP 7361989U JP H0314646 U JPH0314646 U JP H0314646U
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive drum
- developing roller
- unit
- image forming
- rotating
- 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
- 238000000151 deposition Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案に係る第１実施例を示す断面図
、第２図は第１実施例の現像ローラを示す斜視図
、第３図は本考案に係る第２実施例を示す斜視図
、第４図ａおよびｂは第２実施例の動作を示す説
明図、第５図は従来の作像ユニツトを示す断面図
である。
１１……感光ドラム、２１……作像ユニツト、
２２……現像ローラ、２５……圧縮スプリング、
２９……ガイド部、３１……キー孔、３２……キ
ー。
FIG. 1 is a sectional view showing a first embodiment of the present invention, FIG. 2 is a perspective view of a developing roller of the first embodiment, and FIG. 3 is a perspective view of a second embodiment of the present invention. FIGS. 4a and 4b are explanatory views showing the operation of the second embodiment, and FIG. 5 is a sectional view showing a conventional image forming unit. 11...Photosensitive drum, 21...Image forming unit,
22...Developing roller, 25...Compression spring,
29...Guide part, 31...Key hole, 32...Key.
Claims (1)
を備えた第１のユニツトと、潜像を形成して回転
する感光ドラムを備えた第２のユニツトとを有し
、前記現像ローラを前記感光ドラムに圧接し現像
剤を感光ドラムに付着させて潜像を現像する電子
写真プリンタにおいて、 前記第１のユニツトと前記第２のユニツトを一
体に形成した作像ユニツトと、 前記作像ユニツトに形成され前記現像ローラを
感光ドラムに対して接近離隔方向に移動可能に支
持するガイド部と、 前記作像ユニツト内に取付けられ前記現像ロー
ラを感光ドラムに圧接する手段とを設けたことを
特徴とする電子写真プリンタ。 ２ 表面に現像剤を付着して回転する現像ローラ
を備えた第１のユニツトと、潜像を形成して回転
する感光ドラムを備えた第２のユニツトとを有し
、前記現像ローラを前記感光ドラムに圧接し現像
剤を感光ドラムに付着させて潜像を現像する電子
写真プリンタにおいて、 前記第１のユニツトと前記第２のユニツトを一
体に形成した作像ユニツトと、 前記作像ユニツトに形成され前記現像ローラを
感光ドラムに対して接近離隔方向に移動可能に支
持するガイド部と、 前記作像ユニツト内に取付けられ前記現像ロー
ラを感光ドラムに圧接する手段と、 前記一体に形成したユニツトに挿抜可能に取付
けられ挿入することにより前記現像ローラを感光
ドラムから引離す引離部材とを設けたことを特徴
とする電子写真プリンタ。[Claims for Utility Model Registration] 1. A first unit equipped with a rotating developing roller with developer adhered to its surface, and a second unit equipped with a rotating photosensitive drum forming a latent image. In an electrophotographic printer that develops a latent image by pressing the developing roller against the photosensitive drum and depositing developer on the photosensitive drum, an image forming unit is provided in which the first unit and the second unit are integrally formed. a guide portion formed in the image forming unit to support the developing roller so as to be movable toward and away from the photosensitive drum; and means installed in the image forming unit to press the developing roller against the photosensitive drum. An electronic photo printer characterized by being provided with. 2 A first unit equipped with a rotating developing roller with developer adhered to its surface, and a second unit equipped with a photosensitive drum rotating forming a latent image, the developing roller being connected to the photosensitive drum. An electrophotographic printer that develops a latent image by applying a developer to the photosensitive drum in pressure contact with the drum, comprising: an image forming unit in which the first unit and the second unit are integrally formed; a guide portion that supports the developing roller so as to be movable toward and away from the photosensitive drum; a means installed in the image forming unit for pressing the developing roller against the photosensitive drum; An electrophotographic printer comprising: a separating member which is detachably attached and which separates the developing roller from the photosensitive drum when inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7361989U JPH0314646U (en) | 1989-06-26 | 1989-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7361989U JPH0314646U (en) | 1989-06-26 | 1989-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0314646U true JPH0314646U (en) | 1991-02-14 |
Family
ID=31612596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7361989U Pending JPH0314646U (en) | 1989-06-26 | 1989-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003091119A (en) * | 2001-09-18 | 2003-03-28 | Ricoh Co Ltd | Image forming device |
-
1989
- 1989-06-26 JP JP7361989U patent/JPH0314646U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003091119A (en) * | 2001-09-18 | 2003-03-28 | Ricoh Co Ltd | Image forming device |
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