JPH0470659U - - Google Patents
Info
- Publication number
- JPH0470659U JPH0470659U JP11294890U JP11294890U JPH0470659U JP H0470659 U JPH0470659 U JP H0470659U JP 11294890 U JP11294890 U JP 11294890U JP 11294890 U JP11294890 U JP 11294890U JP H0470659 U JPH0470659 U JP H0470659U
- Authority
- JP
- Japan
- Prior art keywords
- roller
- photoreceptor drum
- developing device
- developing sleeve
- developing
- 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 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案を実施した現像装置の要部構成
を示す図であり、第２図はそのブロツク図である
。である。
１……感光体ドラム、２……現像スリーブ、３
……回転軸、４ａ，４ｂ……コロ、５ａ，５ｂ…
…コイルバネ、６ａ，６ｂ……ソレノイド、７…
…ピン、８……マイクロコンピユータ。
FIG. 1 is a diagram showing the main structure of a developing device embodying the present invention, and FIG. 2 is a block diagram thereof. It is. 1...Photosensitive drum, 2...Developing sleeve, 3
... Rotating shaft, 4a, 4b... Roller, 5a, 5b...
...Coil spring, 6a, 6b...Solenoid, 7...
...Pin, 8...Microcomputer.
Claims (1)
ーをもたらす現像スリーブと、該現像スリーブを
固定した回転軸と、前記感光体ドラムと前記現像
スリーブの間隔を規定するため前記回転軸に取り
付けられ表面が前記感光体ドラムに当接するコロ
と、を有する現像装置において、前記コロを前記
回転軸に対し軸方向に移動自在に装着するととも
に制御手段によつて前記コロの移動を制御するよ
うにしたことを特徴とする現像装置。 (2) 前記コロはバネ手段によつて第１の位置を
保つように常時付勢されており、前記制御手段は
所定時に前記コロを第１の位置から第２の位置へ
駆動させるようになつていることを特徴とする第
１請求項に記載の現像装置。 (3) 前記制御手段は前記コロを駆動するソレノ
イドと、該ソレノイドを駆動する信号を与える駆
動信号発生回路とからなつていることを特徴とす
る第２請求項に記載の現像装置。[Claims for Utility Model Registration] (1) A developing sleeve that brings toner to the surface of a photoreceptor drum on which a latent image has been formed, a rotating shaft to which the developing sleeve is fixed, and an interval between the photoreceptor drum and the developing sleeve. In the developing device, the roller is attached to the rotating shaft and has a surface abutting against the photoreceptor drum for the purpose of defining the photoreceptor drum. A developing device characterized by controlling the movement of rollers. (2) The roller is always urged by a spring means to maintain the first position, and the control means drives the roller from the first position to the second position at a predetermined time. The developing device according to claim 1, characterized in that: (3) The developing device according to claim 2, wherein the control means includes a solenoid that drives the roller and a drive signal generation circuit that provides a signal to drive the solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11294890U JPH0470659U (en) | 1990-10-26 | 1990-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11294890U JPH0470659U (en) | 1990-10-26 | 1990-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0470659U true JPH0470659U (en) | 1992-06-23 |
Family
ID=31860478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11294890U Pending JPH0470659U (en) | 1990-10-26 | 1990-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0470659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016143004A (en) * | 2015-02-04 | 2016-08-08 | キヤノン株式会社 | Development apparatus, process cartridge and image formation apparatus |
-
1990
- 1990-10-26 JP JP11294890U patent/JPH0470659U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016143004A (en) * | 2015-02-04 | 2016-08-08 | キヤノン株式会社 | Development apparatus, process cartridge and image formation apparatus |