Image forming apparatus

Electrophotography – Control of electrophotography process – Control of transfer

Reexamination Certificate

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Details

C399S302000, C399S308000

Reexamination Certificate

active

06990298

ABSTRACT:
An image forming apparatus, including: an image forming portion for forming an image on an image bearing member, a first transfer portion for transferring the image on the image bearing member to an intermediate transfer body on a first transfer position, a second transfer portion which has a transfer member attachable and detachable to the intermediate transfer body and transfers the image on the intermediate transfer body to a transferring material on a second transfer position, and a cleaning portion which has a cleaning member attachable and detachable to the intermediate transfer body, brings the cleaning member into contact with a surface of the intermediate transfer body, and cleans the surface on a cleaning position, wherein control is performed so that a subsequent image forming area does not overlap the position which makes contact with the cleaning member and is not cleaned by the cleaning portion on the intermediate transfer body.

REFERENCES:
patent: 5300982 (1994-04-01), Inamoto et al.
patent: 5450180 (1995-09-01), Ohzeki et al.
patent: 6445900 (2002-09-01), Fukao et al.
patent: 2-123385 (1990-05-01), None
patent: 2000-231276 (2000-08-01), None
patent: 2001-175086 (2001-06-01), None

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