Imaging method for universal printers using an image-on-image process

A marking device, comprising:

• a movable photoreceptor;
• and
• at least one of a multi-exposing device and a multi-charging marking device;
• the multi-exposing device comprising:
• a charging device configured to charge the photoreceptor;
• at least two exposing devices comprising one or more of raster output scanners and light emitting diode bars configured to second, expose the photoreceptor;
• a first controller that controls the at least two exposing devices configured to third, successively expose the photoreceptor using the at least two exposing devices during one revolution of the photoreceptor during monochrome marking as the photoreceptor moves through the printing device;
• and
• a developing device that fourth develops an image on the photoreceptor;
• and
• the multi-charging marking device comprising:
• a second controller that controls one or more charging devices configured to fifth, successively charge the photoreceptor using the one or more charging devices during one revolution of the photoreceptor during monochrome marking as the photoreceptor moves through the printing device;
• and
• a developing device that sixth, develops an image on the charged and exposed photoreceptor.

A printing apparatus using an image-on-image device that includes a photoreceptor, comprising at least one of means for monochrome exposing the photoreceptor and means for monochrome charging the photoreceptor, wherein:

• means for monochrome exposing the photoreceptor comprise:
• means for first, charging the photoreceptor;
• means for 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;
• means for third, developing a monochrome image on the photoreceptor;
• and
• means of monochrome charging the photoreceptor comprising:
• means for fourth, successively charging the photoreceptor via one or more charging devices of the photoreceptor relative to the charging devices during a single revolution;
• means for fifth, exposing the photoreceptor using the at least two exposing devices;
• and
• means for sixth, developing an image on the photoreceptor.