US 7,542,689 B2
Charging device, image forming apparatus, computer readable medium storing charging control program and method for charging control
Akihiro Ida, Ebina (Japan); Yoshihisa Kitano, Ebina (Japan); Takuro Hagiwara, Ebina (Japan); Hideki Moriya, Ebina (Japan); Chikaho Ikeda, Ebina (Japan); Hidehiko Yamaguchi, Ebina (Japan); and Masao Ohmori, Ebina (Japan)
Assigned to Fuji Xerox Co., Ltd., Tokyo (Japan)
Filed on May 22, 2007, as Appl. No. 11/802,355.
Claims priority of application No. 2006-292406 (JP), filed on Oct. 27, 2006.
Prior Publication US 2008/0101809 A1, May 01, 2008
Int. Cl. G03G 15/02 (2006.01)
U.S. Cl. 399—50  [399/44; 399/89] 19 Claims
OG exemplary drawing
 
1. A charging device comprising:
a charging member that charges a body to be charged;
a detector that detects an AC component of a current flowing through the charging member;
an integration section that integrates the AC component of the current detected by the detector;
a controller that controls the current flowing through the charging member, according to a result of integration executed by the integration section;
a periodic signal generating section that generates a periodic signal having a cycle period corresponding to a cycle period of the AC component; and
an integration period adjusting section that adjusts a period of integration executed by the integration section, with reference to the periodic signal.