发明名称 IMAGE FORMING APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide a multicolor image forming apparatus which restrains out of color registration by adjusting the rotation phases of a plurality of photoreceptor drums, and in which calibration time is prevented from getting long by shortening time required to detect the rotation phase of the plurality of photoreceptor drums. SOLUTION: The multicolor image forming apparatus is equipped with: a plurality of rotating bodies for carrying an image; a plurality of motors for driving the rotating bodies; a means for detecting the home position of the rotating body; a motor control means for performing speed control and position control for the motor; and a means for detecting a phase difference between the respective rotating bodies from a result obtained by detecting the home position of the rotating body, and the multicolor image forming apparatus restrains the out of color registration by adjusting a phase difference between the respective rotating bodies. The multicolor image forming apparatus is further equipped with at least two or more home position detecting points per rotating body and one detection means for detecting the home position detecting points, and a home position detecting point discrimination means for discriminating each of the plurality of home position detecting points. COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2006215269(A) 申请公布日期 2006.08.17
申请号 JP20050027955 申请日期 2005.02.03
申请人 CANON INC 发明人 KAMEYAMA SHIGERU
分类号 G03G15/01;B41J2/44;H04N1/29 主分类号 G03G15/01
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