Abstract
In electrophotographic printers, one important requirement to near-photographic print quality is the image to paper registration. This paper describes the mechatronics design, control system of sheet registration device using steerable and sliding roller. The device is placed upstream from the image transfer station along the paper path and precisely controls the longitudinal, lateral and skew directions of paper sheets, as they arrive to the image transfer station. A feedback (FB) and feedforward (FF) controller is adapted to achieve extremely precise and high speed. This paper proposed a new FF and FB sequential control strategy for reducing the sheet position variation that is caused by transfer error of feed rollers. Experimental results verify that the steerable and sliding roller under the proposed control strategy is able to meet or exceed design performance requirement as a component of an actual printer.
