Developing unit,申请号DE19813143397-传众专利搜索

Developing unit

申请公布号：DE3143397(A1)

申请号：DE19813143397

申请日期：1981.11.02

申请公布日期：1982.05.27

申请人：

RICOH CO.,LTD.

发明人：SAKAMOTO,KOJI;YANAGAWA,NOBUYUKI

分类号：G03G15/09;(IPC1-7):G03G15/08

主分类号：G03G15/09

摘要：A developing unit for developing a latent, electrostatic image which has been generated on a part carrying a latent, electrostatic image into a visible image has a developing sleeve for conveying developer to the latent, electrostatic image in order to develop the latter into a visible image, and a developer layer thickness control device for controlling the thickness of a developer layer on the developing sleeve; in this developing unit, the developer layer thickness control device has a pressure-exerting part in order by means of the magnetic force which has been exerted on the pressure-exerting part in the direction of the developer conveyor device to exert pressure on the developer layer on the developing sleeve, the pressure-exerting part being held such that it can be moved or displaced in a direction perpendicular to the surface of the developing sleeve. <IMAGE>