| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device, etc. which effectively supplies electric power to a clutch which is PWM-controlled, thereby reducing power consumption. SOLUTION: The image forming device includes: the clutch 4 connected to a power supply to drive control an object to be driven; an information detecting means 1 for detecting image forming information associated with a load of the object to be driven; and a control means 1 for controlling the clutch 4 by a duty ratio of a pulse-width modulating signal. The control means 1 sets the duty ratio of the pulse-width modulating signal to a first value when the clutch 4 is started. Also, it sets the duty ratio of the pulse-width modulating signal to a second value smaller than the first value after the clutch is finished engaging, while setting the second value based on the image forming information obtained by the information detecting means. COPYRIGHT: (C)2012,JPO&INPIT |
