Belt positioning system, multi-roller assembly and image forming apparatus employing same

摘要

A belt positioning system for positioning a movable belt entrained about a plurality of generally parallel rollers for moving in a trans-axial direction perpendicular to an axial direction in which the rollers extend parallel to each other includes a flange. The flange is operatively connected to an axial end of a specific one of the plurality of generally parallel rollers to define a contact surface therealong which extends generally perpendicular to the axial direction to contact an adjoining edge of the belt. The contact surface of the flange is spaced apart from the axial end of the roller in the axial direction.

主权项

1. A belt positioning system for positioning a movable belt entrained about a plurality of generally parallel rollers for moving in a trans-axial direction perpendicular to an axial direction in which the rollers extend parallel to each other, the system comprising:
a flange operatively connected to an axial end of a specific one of the plurality of generally parallel rollers to define a contact surface which extends generally perpendicular to the axial direction to contact an adjoining edge of the belt, wherein the contact surface of the flange is spaced apart from the axial end of the roller in the axial direction, and a spacer interposed between the axial end of the roller and the contact surface of the flange, wherein the spacer has a diameter shorter than a diameter of the roller in a direction perpendicular to the axial direction to create a gap between the adjoining surfaces of the belt and the spacer.