| 摘要 |
PROBLEM TO BE SOLVED: To correct the gap between the drive timing and the high-pressure control timing of developing sleeves.SOLUTION: A CPU 301 corrects the driving speed of a developing drive connection motor 126 according to a phase angle at which a control cam 258 is driven from when the developing drive connection motor 126 starts the drive of the control cam 258 at a predetermined driving speed until when inductance sensors 124 detect the drive or stop of the developing sleeves 244, so that the drive or stop of developing sleeves 244 is performed in accordance with the timing at which a high-pressure control unit 245 starts or stops the application of high voltage to the developing sleeves 244. |
