Image forming apparatus

Details Image forming apparatus Image forming apparatus

2006-01-10

2006-01-10

Bennett, G. Bradley (Department: 2859)

Electrophotography

Control of electrophotography process

Control of charging

Reexamination Certificate

active

06985680

ABSTRACT:
An AC voltage from a power generating circuit is applied to a charge roller. CPU controls the power generating circuit so as to flow a constant current according to a control value through a current path from the power generating circuit to the charge roller. CPU produces an information according to an peak value of the AC voltage applied to the charge roller. CPU produces an information according to the AC voltage applied to the charge roller when the AC voltage is in a predetermined phase.

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