Developing device and image forming device installed with the developing device

Application Number: 00106972
Application Date: 2000.04.27
Publication Number: 1273375
Publication Date: 2000.11.15
Priority Information: 1999/5/6 JP 125601/99; 1999/5/6 JP 126007/99; 1999/7/16 JP 203408/99; 2000/3/15 JP 72309/00
International: G03G15/08
Applicant(s) Name: Ricoh Co., Ltd.
Address:
Inventor(s) Name: Kato Shunji;Yoshizawa Hideo;Tamaki Shinji
Patent Agency Code: 11105
Patent Agent: yang wu
Abstract The invention related to a developing machine and an image-forming device. A counterposed surface 16A of a 2nd regulating member 9A opposed to a developing sleeve 1 has area large enough to uniformize the layer thickness of the developer 22 in the shaft direction of the sleeve 1. Accordingly, ven if the dispersion of a gap between the member 9A and the sleeve 1 exists in the shaft direction of the sleeve 1 due to the machining accuracy of the surface 16A, it is overlapped while the developer 22 passes through the surface 16A, and the layer thickness of the developer 22 is averaged. Therefore, the take-in amount of the toner 5 in the shaft direction of the sleeve 1 is made constant.

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