Developing device for an image forming apparatus

Details Developing device for an image forming apparatus Developing device for an image forming apparatus

1993-12-27

1995-11-14

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118653, 355245, 355253, G03G 1508

Patent

active

054671752

ABSTRACT:
In a developing device for developing a latent image formed on an image carrier with a developer, a developer carrier conveys the developer deposited thereon to the image carrier. A developer driving section moves, in a position adjoining the developer carrier and where the developer is at least apt to aggregate, the developer such that the developer is loosened. A developer charging member deposits a predetermined amount of charge on the developer. The developer charging member is located downstream of the developer driving section with respect to the direction of rotation of the developer carrier and upstream of a developing position where the developer carrier faces the image carrier. The device is small size and inexpensive since it does not include a conventional sponge roller or similar developer supply member. In addition, the device prevents the developer from aggregating in the vicinity of the developer carrier and stabilizes the deposition of a charge on the developer carried on the developer carrier.

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