Patent ID: 7804510

Claim:
A method of printing using an image-on-image device that includes a movable photoreceptor, comprising at least one of monochrome exposing of the photoreceptor and monochrome charging of the photoreceptor, wherein monochrome exposing of the photoreceptor comprises: first, charging the photoreceptor; second, successively exposing the photoreceptor in a monochrome mode using at least two exposing devices comprising one or more of raster output scanners and light emitting diode bars during a single revolution of the photoreceptor relative to the at least two exposing devices; third, developing a monochrome image on the photoreceptor; and monochrome charging the photoreceptor comprises: fourth, successively charging the photoreceptor via a plurality of charging devices during a single revolution of the photoreceptor relative to the charging devices; fifth, exposing the photoreceptor using the at least two exposing devices; and sixth, developing an image on the photoreceptor.