Invention Grant
US08849132B2 Compensating for periodic nonuniformity in electrophotographic printer 有权
补偿电子照相打印机中的周期性不均匀性

Compensating for periodic nonuniformity in electrophotographic printer
Abstract:
A method is provided of compensating for periodic non-uniformity in an electrophotographic printer with a rotatable imaging component, and a runout sensor for measuring the distance between a first reference point and the surface of the rotatable imaging component along a first reference axis. An image signal representing an image to be produced on a receiving member by the printer is received. The rotatable imaging component is rotated. While the rotatable imaging component is rotating, the distance for the rotatable component is measured using the runout sensor. A correction value corresponding to the measured distance is automatically determined using a processor. The image data corresponding to the measured distance are automatically adjusted with the correction value using the processor. Toner corresponding to the adjusted image data is deposited on the receiver using the rotatable imaging component.
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