Patent ID: 8525857

Claim:
A document processing system, comprising: a photoreceptor that continuously moves along a closed path; a plurality of raster output scanners (ROSs) located along the closed path of the photoreceptor, the ROSs individually operable to generate a latent image on a portion of the photoreceptor based on a clock input; a first clock providing a first clock output signal to the ROSs; a second clock providing a second clock output signal to the ROSs, the second clock output signal being or representing a higher frequency than the first clock output signal; a plurality of developers individually located downstream of a corresponding one of the ROSs and individually operable to develop toner of a given color on the latent image on the photoreceptor; a transfer station located along the closed path downstream of the ROSs and operative to transfer the developed toner from the photoreceptor to a substrate traveling along a first substrate path; a fusing station for fixing the transferred toner to the substrate; a duplex router receiving the substrate from the fusing station and operative to selectively direct the substrate along a second path; a media inverter located along the second path and operative to invert the substrate and to return the inverted substrate to the first path upstream of the transfer station; a controller coupled with the ROSs to selectively operate a given ROS according to the first clock signal if the latent image being generated by the given ROS is to be rendered on a first side of the substrate or according to the second clock signal if the latent image being generated by the given ROS is to be rendered on a second side of the substrate; and an electronic registration adjustment component operatively coupled with the controller to selectively add or remove at least one sub-pixel to or from image data associated with a given image.