SYSTEM FOR REGISTRATION OF COLOR SEPARATION IMAGES ON A PHOTOCONDUCTOR BELT

摘要

A system for registration of one or more color separation images on a photoconductor belt prevents misregistration that otherwise can occur between different scan lines and between different latent images due to side-to-side movement of the photoconductor belt. The registration system operates to detect movement of the photoconductor belt. Based on the detected movement, the system operates to control modulation of laser beams used to form the latent images to ensure precise registration of the color separation images. As one advantage, the movement of the photoconductor belt can be detected precisely and inexpensively by a photodetector scanned with the same laser beam used for imaging.