JPH0384849U - - Google Patents
Info
- Publication number
- JPH0384849U JPH0384849U JP14473789U JP14473789U JPH0384849U JP H0384849 U JPH0384849 U JP H0384849U JP 14473789 U JP14473789 U JP 14473789U JP 14473789 U JP14473789 U JP 14473789U JP H0384849 U JPH0384849 U JP H0384849U
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- developing roller
- main body
- developing device
- developer
- 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
- 108091008695 photoreceptors Proteins 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は請求項１及び２記載の考案の実施例を
示す側面図、第２図は縦断側面図、第３図は平面
図、第４図は斜視図、第５図は装置全体の縦断側
面図、第６図は請求項３記載の考案の実施例を示
す側面図、第７図は従来例を示す縦断側面図、第
８図は側面図である。
２……感光体、５……開口部、７……現像ロー
ラ、１５，１６，１９……回転軸、１９……支持
軸、２２……動力伝達機構、２６，５２……電子
写真装置、３１……帯電器、３２……露光装置、
３３，５３……現像器、３８……記録媒体、４１
，５４……本体、４４……弾性部材、４８……駆
動源。
Fig. 1 is a side view showing an embodiment of the invention according to claims 1 and 2, Fig. 2 is a longitudinal side view, Fig. 3 is a plan view, Fig. 4 is a perspective view, and Fig. 5 is a longitudinal cross-section of the entire device. FIG. 6 is a side view showing an embodiment of the invention according to claim 3, FIG. 7 is a vertical side view showing a conventional example, and FIG. 8 is a side view. 2... Photoreceptor, 5... Opening, 7... Developing roller, 15, 16, 19... Rotating shaft, 19... Support shaft, 22... Power transmission mechanism, 26, 52... Electrophotographic device, 31... Charger, 32... Exposure device,
33, 53...Developer, 38...Recording medium, 41
, 54... Main body, 44... Elastic member, 48... Drive source.
Claims (1)
周面上に帯電器や露光装置が対向配置された円筒
形の感光体と、この感光体の周面に押圧保持され
る現像ローラが本体の開口部に回転自在に取付け
られた現像器と、前記現像ローラと駆動源とを連
結すると共に回転軸の一つを支持軸として前記現
像器の本体を揺動自在に軸支した動力伝達機構と
よりなり、この動力伝達機構の前記現像器を支持
した回転軸の回転に伴つて前記現像器本体が揺動
することで前記現像ローラの前記感光体に対する
押圧を動作時には通常押圧状態に維持すると共に
休止時には押圧解除状態とするようにしたことを
特徴とする電子写真装置。 ２ 現像ローラが感光体から離反する方向に現像
器本体を付勢する弾性部材を設けたことを特徴と
する請求項１記載の電子写真装置。 ３ 現像器が動作状態から休止状態に移行する時
に前記現像器の駆動源を逆回転させて現像ローラ
を感光体から離反させるようにしたことを特徴と
する請求項１又は２記載の電子写真装置。[Claims for Utility Model Registration] 1. A cylindrical photoreceptor that is rotatably supported on a recording medium conveyance path and has a charger and an exposure device facing each other on its circumference, and a press on the circumference of the photoreceptor. A developing device in which a retained developing roller is rotatably attached to an opening of a main body, the developing roller and a drive source are connected to each other, and the main body of the developing device is swingable using one of the rotating shafts as a support shaft. and a power transmission mechanism that is pivotally supported by the developer, and the developer main body swings with the rotation of a rotating shaft that supports the developer of the power transmission mechanism, thereby operating the pressing of the developing roller against the photoreceptor. An electrophotographic apparatus characterized in that it is maintained in a normally pressed state at times and in a released state when it is not in use. 2. The electrophotographic apparatus according to claim 1, further comprising an elastic member that urges the developing device main body in a direction in which the developing roller moves away from the photoreceptor. 3. The electrophotographic apparatus according to claim 1 or 2, wherein when the developing device transitions from an operating state to a resting state, a drive source for the developing device is rotated in a reverse direction to move the developing roller away from the photoreceptor. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14473789U JPH0384849U (en) | 1989-12-15 | 1989-12-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14473789U JPH0384849U (en) | 1989-12-15 | 1989-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0384849U true JPH0384849U (en) | 1991-08-28 |
Family
ID=31691417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14473789U Pending JPH0384849U (en) | 1989-12-15 | 1989-12-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0384849U (en) |
-
1989
- 1989-12-15 JP JP14473789U patent/JPH0384849U/ja active Pending
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