Image forming apparatus having charging member with control of v

Details Image forming apparatus having charging member with control of v Image forming apparatus having charging member with control of v

1998-09-08

2000-07-11

Beatty, Robert

Electrophotography

Control of electrophotography process

Control of charging

399 21, G03G 1502

Patent

active

060885483

ABSTRACT:
An image forming apparatus includes an image bearing member; a charging member, contactable to said image bearing member, for being supplied with a voltage to charge said image bearing member; a developing device for forming a toner image by developing with toner an electrostatic image formed on said image bearing member, and also being capable of cleaning said image bearing member to remove residual toner; and a transferring device for transferring the toner image onto a transfer material. When the apparatus stops during an image forming operation as during a jam, the voltage applied to said charging member is a superimposed voltage of an AC voltage and DC voltage and is a DC voltage without the AC voltage thereafter between resumption after jamming and the start of image formation.

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patent: 5839026 (1998-11-01), Ko
patent: 5842081 (1998-11-01), Kaname et al.
patent: 5845172 (1998-12-01), Saito et al.

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