Electrophotography – Control of electrophotography process – Control of charging
Reexamination Certificate
2006-01-31
2006-01-31
Lee, Susan (Department: 2852)
Electrophotography
Control of electrophotography process
Control of charging
C399S043000, C399S167000
Reexamination Certificate
active
06993263
ABSTRACT:
An image forming apparatus includes a charging unit for charging an image bearing member, an image forming unit for forming a toner image on the image bearing member that has been charged, and a cleaning unit for contacting the image bearing member to clean the surface of the image bearing member. In the apparatus, a ratio of a period wherein the image bearing member is moved without being charged to a period wherein the image bearing member is moved while being charged, is controlled to be a predetermined value or greater.
REFERENCES:
patent: 4561762 (1985-12-01), Watanabe et al.
patent: 6014529 (2000-01-01), Sato
patent: 10-97122 (1998-04-01), None
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