A TRI-LEVEL IMAGING APPARATUS USING DIFFERENT ELECTROSTATIC TARGETS FOR CYCLE UP AND RUNTIME

摘要

Two sets of targets, one for use during cycle up convergence of electrostatics and one during runtime enable single pass cleaning of developed patches, during cycle up convergence. To this end, different targets from those used during runtime are used for the preclean, transfer and pretransfer dicorotrons during cycle up. Proper charging of the photoreceptor during runtime and cycle up convergence is also enabled by the provision of two charging targets, one for each mode of operation.