| 摘要 |
PURPOSE:To prevent a toner image from being disordered and to simplify the constitution of a control system by driving a roller driving device with a basic clock which drives a drum driving device in synchronism with the drum driving device. CONSTITUTION:An electrostatic latent image is formed on the surface of a photosensitive drum 2 by a laser beam scanner 1. A developing device 4 forms a toner image on the surface of the photosensitive drum 2 and the image is transferred to a printing form P by a transfer charging device 8. The drum driving device 3 and roller driving device 11 are composed of a stepping motor and the roller driving device 11 is driven with the basic clock which drives the drum driving device 3 in synchronism with the drum driving device 3. |
