Patent ID: 7801455

Claim:
A monochrome xerographic printing system user switchable between magnetic ink character recognition (MICR), normal non-magnetic and combination monochrome modes, comprising: an intermediate transfer belt configured for rendering an image to a print media; a first photoreceptor drum having a first image developing component configured for applying a first non-magnetic monochrome toner, in a first image cycle of the first photoreceptor drum, to the intermediate transfer belt during a first rotation of the intermediate transfer belt; a second photoreceptor drum having a second image developing component configured for applying a second MICR toner, in a first image cycle of the second photoreceptor drum, to the intermediate transfer belt during the first rotation of the intermediate transfer belt; a user-selectable mode selection means for providing: a first intermediate transfer belt pathway that contacts the first photoreceptor drum and the second photoreceptor drum to provide a composite image containing MICR toner and non-magnetic monochrome toner on the intermediate transfer belt in the combination monochrome mode; a second intermediate transfer belt pathway that bypasses contact with the first photoreceptor drum to provide a single monochrome image of MICR toner on the intermediate transfer belt in the MICR mode; and a third intermediate transfer belt pathway that bypasses contact with the second photoreceptor drum to provide a single monochrome image of non-magnetic monochrome toner on the intermediate transfer belt in the normal non-magnetic mode.