Patent ID: 6594460
Filing Date: 2003-07-15
Classification: G03G

Abstract:
In a printing method in which a rotatable print image bearing belt is mounted on at least one axial belt roller, and said rotatable print image bearing belt must be maintained in a desired substantially consistent lateral registration to maintain image quality; wherein lateral misregistration of said rotatable print image bearing belt is sensed and a low and substantially constant lateral positional corrective force is applied to said rotatable print image bearing belt, in response to said sensing of said lateral misregistration of said rotatable print image bearing belt, in one of the two directions axial of said axial belt roller, for at least one complete rotation of said rotatable print image bearing belt, said low and substantially constant lateral positional corrective force having a transverse force level sufficient to provide said desired substantially consistent lateral registration of said print image bearing belt,wherein said low and substantially constant lateral positional corrective force is applied indirectly through a low spring constant spring system, wherein said spring system has first and second spring components, and further including a reversible and low bandwidth drive motor acting with more force on said first spring component than said second spring component to provide said low and substantially constant lateral positional corrective force.