JPS6329160U - - Google Patents
Info
- Publication number
- JPS6329160U JPS6329160U JP12090886U JP12090886U JPS6329160U JP S6329160 U JPS6329160 U JP S6329160U JP 12090886 U JP12090886 U JP 12090886U JP 12090886 U JP12090886 U JP 12090886U JP S6329160 U JPS6329160 U JP S6329160U
- Authority
- JP
- Japan
- Prior art keywords
- circumferential surface
- magnet roll
- gap
- photoreceptor drum
- drum
- 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
- 230000003287 optical effect Effects 0.000 claims 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第1図は本考案の一実施例を示す現像装置にお
けるギヤツプ制御装置の正面図である。
1……感光体ドラム、2……フレーム、7……
マグネツトロール、9……ギヤツプ、11……セ
ンサ、12……ボールスクリユウ、14……駆動
部、15……制御回路、e……ギヤツプ量。
FIG. 1 is a front view of a gap control device in a developing device showing an embodiment of the present invention. 1... Photosensitive drum, 2... Frame, 7...
Magnet roll, 9... Gap, 11... Sensor, 12... Ball screw, 14... Drive unit, 15... Control circuit, e... Gap amount.
Claims (1)
電潜像を形成し、前記ドラムの周面に対し微小の
ギヤツプをもつて離隔して回転するマグネツトロ
ールにより、現像剤を前記静電潜像に接触させて
現像を行う現像装置において、前記マグネツトロ
ールを回転自在に支持し、かつマグネツトロール
をドラム周面に対し、進退しうるように支持され
たフレームと、前記フレームを進退させる駆動部
と、感光体ドラムの法線方向を向き、かつ感光体
ドラムの周面近傍において前記フレームに固着さ
れていて、感光体ドラムとマグネツトロールとの
ギヤツプを検出するセンサと、このセンサで検出
されるギヤツプ量と適正なギヤツプ量との偏差に
対応して、前記駆動部の作動を制御する制御回路
を備えることを特徴とする現像装置におけるギヤ
ツプ制御装置。 A high-resolution optical system forms an electrostatic latent image on the circumferential surface of the photoreceptor drum, and a magnet roll, which rotates at a distance with a small gap from the circumferential surface of the drum, transfers the developer to the electrostatic latent image. A developing device that performs development by contacting an electrostatic latent image includes a frame that rotatably supports the magnet roll and supports the magnet roll so that it can move forward and backward with respect to the circumferential surface of the drum; a drive unit for advancing and retracting; a sensor that faces the normal direction of the photoreceptor drum and is fixed to the frame near the circumferential surface of the photoreceptor drum and detects a gap between the photoreceptor drum and the magnet roll; 1. A gap control device for a developing device, comprising a control circuit that controls the operation of the drive unit in response to a deviation between a gap amount detected by a sensor and an appropriate gap amount.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12090886U JPS6329160U (en) | 1986-08-08 | 1986-08-08 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12090886U JPS6329160U (en) | 1986-08-08 | 1986-08-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6329160U true JPS6329160U (en) | 1988-02-25 |
Family
ID=31009671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12090886U Pending JPS6329160U (en) | 1986-08-08 | 1986-08-08 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6329160U (en) |
-
1986
- 1986-08-08 JP JP12090886U patent/JPS6329160U/ja active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6329160U (en) | ||
JPH0398463U (en) | ||
JPH0641257Y2 (en) | Development device | |
JPS6358246U (en) | ||
JPS62106264U (en) | ||
JPS61188159U (en) | ||
JPH0470659U (en) | ||
JPH0349558U (en) | ||
JPH0312255U (en) | ||
JPS58178152U (en) | developing device | |
JPH0322258U (en) | ||
JPS63174358U (en) | ||
JPH01181046U (en) | ||
JPH0411557U (en) | ||
JPH0159269U (en) | ||
JPH02126156U (en) | ||
JPS6380570U (en) | ||
JPH021755U (en) | ||
JPH0358655U (en) | ||
JPH0457857U (en) | ||
JPH01166355U (en) | ||
JPS5888248U (en) | Developing device of electrophotographic copying machine | |
JPS5847859U (en) | Copy machine developing device | |
JPH025759U (en) | ||
JPH0427467U (en) |