Patent ID: 6370354
Filing Date: 2002-04-09
Classification: G03G

Abstract:
A method for controlling positional error in an image forming system, said method comprising:(a) providing an image forming apparatus having a memory circuit for storage of data, and a processing circuit for controlling at least one physical device; (b) providing at least one print engine, an intermediate transfer member, and an input print media pathway, wherein said intermediate transfer member and said input print media pathway physically converge at a transfer nip; (c) applying an image onto said intermediate transfer member by way of said at least one print engine, while controlling said intermediate transfer member at a substantially predetermined velocity, wherein the substantially predetermined velocity of said intermediate transfer member is dependent upon a print resolution of said image forming system; and (d) controlling a variable velocity of a sheet of print media as that sheet travels through said input print media pathway, without halting movement of said sheet at any time after said sheet has begun movement, so as to cause a leading edge of said sheet to arrive at said transfer nip at substantially the same moment as a leading edge of said image traveling on said intermediate transfer member, thereby substantially eliminating registration error.