Patent ID: 8078092
Filing Date: 2011-12-13
Classification: G03G

Abstract:
1. An apparatus comprising: a fusing belt; at least one fusing belt support roller, where the fusing belt is entrained on the fusing belt support roller, the at least one fusing belt support roller having an axis of rotation; a pressure roller that contacts the fusing belt to form a fusing nip, where the pressure roller and the fusing belt are configured to fuse an image on a media sheet in the fusing nip; a belt position changing mechanism coupled to the fusing belt, the belt position changing mechanism configured to move the fusing belt axially relative to the at least one fusing belt support roller axis of rotation; and a belt position changing control module coupled to the belt position changing mechanism, the belt position changing control module configured to axially move the fusing belt periodically and regularly back and forth in a first direction and a second direction along the axis of rotation according to a control algorithm, where the first direction is opposite from the second direction, and configured to adaptively control a rate of the axial movement of the fusing belt using previous one or more times it took for the fusing belt to move back and forth as inputs for the control algorithm.