Title:
Image forming device
Document Type and Number:
Japanese Patent JP5939783
Kind Code:
B2
Abstract:
An image forming apparatus configured to, in a state where a voltage is applied to a charging unit (202), determine a surface potential of an image bearing member (201) using a first voltage applied when a current value obtained by, after applying a predetermined voltage to a transfer unit (204), detecting the current value while changing the applied voltage to a positive direction reaches a discharge current value, and a second voltage applied to the transfer unit when a current value obtained by, after applying the predetermined voltage to the transfer unit, detecting the current value while changing the applied voltage to a negative direction reaches the discharge current value.
Inventors:
Shiro Sakata
Application Number:
JP2011272760A
Publication Date:
June 22, 2016
Filing Date:
December 13, 2011
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G15/00; G03G15/02; G03G15/16
Domestic Patent References:
JP2011186037A | ||||
JP2003295540A | ||||
JP2011100015A | ||||
JP2009069815A | ||||
JP2010237495A | ||||
JP2011118234A | ||||
JP2012013881A |
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa
Sogo Kuroiwa
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