发明名称 |
Method for driving development unit for image forming apparatus to simultaneously remove drip lines |
摘要 |
A method for driving development devices of an image forming apparatus including the steps of: (a) simultaneously rotating gear cams of the respective development devices for colors Y (yellow), M (magenta), C (cyan) and K (black); (b) determining whether the frame of the development devices is lifted to a preset position; (c) rotating a developing roller; (d) coating a developer liquid on an image portion of a photoreceptor belt; (e) determining whether the image portion has passed through a transfer roller or not; (f) simultaneously rotating the gear cams of the respective development devices for colors Y, M, C and K if the image portion has passed through the transfer roller; (g) determining whether the distance between the frame and the photoreceptor belt is a preset value; (h) simultaneously stopping the gear cams of the respective development devices for colors Y, M, C and K if the distance between the frame and the photoreceptor belt is the preset value; and (i) simultaneously removing drip lines by simultaneously reversely rotating first and second squeegee rollers in the respective development devices. Therefore, the overall configuration becomes simplified, thereby reducing the fabrication cost, as well as making maintenance and repair thereof easy.
|
申请公布号 |
US5907754(A) |
申请公布日期 |
1999.05.25 |
申请号 |
US19980074386 |
申请日期 |
1998.05.08 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, WAN-HA;CHANG, KEE-SON;KWAK, JIN-GEUN |
分类号 |
G03G15/01;G03G15/11;(IPC1-7):G03G15/01;G03G15/10 |
主分类号 |
G03G15/01 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|