Image forming apparatus

Details Image forming apparatus Image forming apparatus

2011-01-25

2011-01-25

Lee, Susan S (Department: 2884)

Electrophotography

Control of electrophotography process

Control of transfer

C399S149000

Reexamination Certificate

active

07877033

ABSTRACT:
There is provided an image forming apparatus, including: a image bearing member; a charging member; a developing device; a transfer member that forms a transfer portion, thereby transferring a toner image on the image bearing member, to a transfer material; a first toner charging member disposed on the lower stream side of the transfer portion and on the upper stream side of the charging member in a rotating direction of the image bearing member, thereby charging the toner on the image bearing member by applying voltage; wherein the developing device develops the electrostatic latent image and recovers the toner charged by the first toner charging member, the image forming apparatus further including: a first current detecting portion that detects a current value flowing through the first toner charging member; and a changing portion that changes a transfer condition according to the detected current value.

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