Electrophotography – Control of electrophotography process – Control of charging
Reexamination Certificate
2007-04-10
2007-04-10
Chen, Sophia S. (Department: 2852)
Electrophotography
Control of electrophotography process
Control of charging
C399S082000, C399S364000
Reexamination Certificate
active
11377374
ABSTRACT:
An image forming apparatus operating in a double-sided print mode, includes a charger for charging an image carrier, a charge voltage loader for applying a charge voltage to the charger, an image forming device for forming an image on a recording material, and a controller for controlling the charge voltage applied by the charge voltage loader to the charger. When an image is formed on both sides of a plurality of recording materials, the controller changes the charge voltage applied by the charge voltage loader from a first to a second voltage when an image is formed on first and second sides of the recording material in a period in which an image is formed on the recording sheet, and does not change the charge voltage during an interval between a first recording material and a second recording material to the second charge voltage.
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Ito Mitsuhiro
Sakai Hiroaki
Canon Kabushiki Kaisha
Chen Sophia S.
Fitzpatrick ,Cella, Harper & Scinto
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