Banoing Reduction in Electrophotographic Process Using Closed-Loop Controlled Plezoelectric Laser Beam Deflection Device

摘要

Banding is an image artifact that appears as perodidic light and dark bands across a page. This paper presents an experimental study on the application of a piezoelectric laser beam deflection device to reduce banding in the electrophotographic process. An empirical model was obtained using system identification techniques by measuring the laser beam position on-line proposed and implemented. Experiments conducted without actually printing showed significant improvements in reducing the scan line positioning errors using proposed method.