JPH0367353U - - Google Patents
Info
- Publication number
- JPH0367353U JPH0367353U JP12963389U JP12963389U JPH0367353U JP H0367353 U JPH0367353 U JP H0367353U JP 12963389 U JP12963389 U JP 12963389U JP 12963389 U JP12963389 U JP 12963389U JP H0367353 U JPH0367353 U JP H0367353U
- Authority
- JP
- Japan
- Prior art keywords
- image forming
- force
- forming unit
- photoreceptor
- transmission mechanism
- 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 9
- 230000005540 biological transmission Effects 0.000 claims 4
- 238000004140 cleaning Methods 0.000 description 3
Landscapes
- Cleaning In Electrography (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図および第２図は本考案を現像ユニツトに
適用した場合の一実施例における現像ユニツト支
持駆動機構を表わした側面説明図、第３図は本考
案をクリーニングユニツトに適用した場合の実施
例におけるクリーニングユニツト支持駆動機構を
表わした側面説明図である。
１……感光体ドラム、２……現像ユニツト、４
……現像ローラー、５，１３……案内基準スタツ
ド、６，１４……摺動案内溝、７，１５……加圧
スプリング、８……現像ギア、９……駆動ギア、
１０……クリーニングユニツト、１１……クリー
ニングブラシ。
Figures 1 and 2 are side explanatory views showing a developing unit support and drive mechanism in an embodiment in which the present invention is applied to a developing unit, and Figure 3 is an embodiment in which the present invention is applied to a cleaning unit. FIG. 1...Photosensitive drum, 2...Developing unit, 4
...Developing roller, 5, 13... Guide reference stud, 6, 14... Sliding guide groove, 7, 15... Pressure spring, 8... Developing gear, 9... Drive gear,
10...Cleaning unit, 11...Cleaning brush.
Claims (1)
像形成用ユニツトを往復移動自在に支持する摺動
案内手段と、前記感光体に対向配置するように画
像形成ユニツトに備えられているローラー部材と
、上記画像形成用ユニツトを感光体側に向かつて
押圧するユニツト付勢手段と、上記画像形成用ユ
ニツトに対して装置本体側からの回転駆動力を伝
達する回転駆動力伝達機構とを備えてなり、上記
回転駆動力伝達機構は、画像形成用ユニツトを感
光体から引き離す方向の回転駆動力をローラー部
材に伝達するように構成される画像形成装置にお
いて、 上記ユニツト付勢手段によつて画像形成用ユニ
ツトを感光体側へ押圧する作用力と、画像形成用
ユニツトを感光体から引き離す作用力に対抗して
摺動案内手段に生じる摩擦反力との合力が、画像
形成用ユニツトを感光体から引き離す方向に作用
する回転駆動力伝達機構による作用力より大きく
なるように設定されていることを特徴とする画像
形成装置。 ２ 請求項の１に記載されている画像形成装置に
おいて、 ユニツト付勢手段によつて画像形成用ユニツト
を感光体側へ押圧する作用力と、画像形成用ユニ
ツトを感光体から引き離す作用力に対抗して摺動
案内手段に生じる摩擦反力との合力が、画像形成
用ユニツトを感光体から引き離す方向に作用する
回転駆動力伝達機構による作用力と略等しくなる
ように設定されていることを特徴とする画像形成
装置。[Claims for Utility Model Registration] (1) A sliding guide means for supporting an image forming unit so as to be movable back and forth so as to be close to and separated from the photoreceptor; A roller member provided in the forming unit, a unit biasing means for pressing the image forming unit toward the photoreceptor, and a rotating member for transmitting rotational driving force from the apparatus main body to the image forming unit. and a driving force transmission mechanism, and the rotational driving force transmission mechanism is configured to transmit a rotational driving force in a direction to separate the image forming unit from the photoreceptor to the roller member. The resultant force of the force that presses the image forming unit toward the photoreceptor by the biasing means and the frictional reaction force generated on the sliding guide means in opposition to the force that pulls the image forming unit away from the photoreceptor is the An image forming apparatus characterized in that the image forming apparatus is set to have a force greater than a force exerted by a rotational driving force transmission mechanism that acts in a direction to separate a forming unit from a photoreceptor. 2. In the image forming apparatus according to claim 1, the unit biasing means counteracts the force that presses the image forming unit toward the photoreceptor and the force that separates the image forming unit from the photoreceptor. and the frictional reaction force generated on the sliding guide means is set so that the resultant force is approximately equal to the force applied by the rotational drive force transmission mechanism that acts in the direction of separating the image forming unit from the photoreceptor. image forming device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12963389U JPH0367353U (en) | 1989-11-06 | 1989-11-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12963389U JPH0367353U (en) | 1989-11-06 | 1989-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0367353U true JPH0367353U (en) | 1991-07-01 |
Family
ID=31677249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12963389U Pending JPH0367353U (en) | 1989-11-06 | 1989-11-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0367353U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01164976A (en) * | 1987-12-22 | 1989-06-29 | Ricoh Co Ltd | Developing device |
-
1989
- 1989-11-06 JP JP12963389U patent/JPH0367353U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01164976A (en) * | 1987-12-22 | 1989-06-29 | Ricoh Co Ltd | Developing device |
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