Patent ID: 6359638
Filing Date: 2002-03-19
Classification: B41J,G03G

Abstract:
A color electrophotographic printer in which m (m=2, 3, 4, . . . ) latent images corresponding to m colors are successively formed on an image bearing body by m exposure units corresponding to the m colors by means of irradiation of laser light or LED (Light-Emitting Diode) light and development of each latent image corresponding to each color is conducted just after the formation of the latent image and thereby color superposition of the m colors is conducted on the image bearing body, comprising:an encoder pickup wheel which is placed in contact with the image bearing body for detecting the feeding speed of the image bearing body and whose outer diameter D is set as D=L/n&pgr; (L: interval between the exposure units, n: natural number); and a control section for controlling the feeding speed of the image bearing body by means of closed-loop control based on the feeding speed detected by the encoder pickup wheel.