Duality Between Organic Photoconductor Thickness and Print Engine Parameters

The correlation between organic photoconductor (OPC) thickness and several printer parameters and OPC aging are theoretically analyzed. We found that linewidth changes from varying the charge transport layer (CTL) thickness are analogous to those from adjusting several printer parameters. Thus, the same linewidths and print quality can be achieved by appropriately adjusting those parameters, provided that lateral motion of photogenerated charge carriers during their transit from the charge generation layer to the CTL surface is negligibly small. In particular, it is found that the laser power is required to increase exponentially with respect to an increase in CTL thickness in order to maintain the same linewidths, and the power sensitivity is inversely proportional to the quantum efficiency. In addition, it is found that, under certain conditions, varying the CTL thickness is analogous to adjusting several print engine parameters.