Patent ID: 8676074
Filing Date: 2014-03-18
Classification: G03G

Abstract:
1. A method for printing, the method comprising: providing a primary imaging member having individual engine pixel locations with a range of ratio modulated differences of potential of a first polarity at each individual engine pixel location; establishing a first development difference of potential relative to a ground, to form a first net development difference of potential between the first development difference of potential and the ratio modulated difference of potential at the individual engine pixel locations; providing a first charged toner of the first polarity such that the first toner develops at the individual engine pixel locations according to the first net development difference of potential at the individual engine pixel locations; establishing a second development difference of potential relative to ground that is greater than the first development difference of potential proximate the individual engine pixel location to form, a second net development difference of potential between the second development difference of potential, the first development difference of potential at the individual engine pixel location and the ratio modulated difference of potential at the individual engine pixel location; and providing a second charged toner having a polarity that is the same as a polarity of the first charged toner such that the second toner develops at the individual engine pixel location according to the second net development difference of potential; wherein an amount of first toner that can be developed at an individual engine pixel location is within a range of ratio modulated differences of potential, and wherein the second development difference of potential is determined such that an amount of second toner developed with the first toner at an individual engine pixel location in response to a ratio modulated difference of potential allows any of a determined range of ratios of first toner amounts and second toner amounts to be provided at the individual engine pixel locations.