Banding Reduction in Electrophotographic Process Using Piezoelectric Actuated Laser Beam Deflection Device
Abstract:Banding is an image artifact that appears as peroidic 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. Banding is characterized using several different measurement techniques. An empirical model of the actuator is obtained using system identification techniques by measuring the laser beam position on-line using an optical sensor. An open loop control strategy is then proposed and implemented. Experimental results showed significant improvements with the images printed using beam deflection control.
Document Type: Research Article
Publication date: January 1, 2000
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