Electrophotographic printer with lateral image alignment.

摘要

An electrophotographic printer with an electronic line-imager (41) for line-wise exposing an image on an electrostatically charged drum (40), wherein the effective length l of the line-imager is greater than the length i of a line image to be produced thereby, and wherein sensor means (88) is provided for sensing the lateral position of a sheet (61) as such sheet approaches towards the drum, and control means for controlling the line-imager in response to the output signal of the sensor means, for altering the longitudinal position of the line images in the line-imager, thereby to compensate for deviations of a sheet from its correct lateral position.