Image forming apparatus

摘要

An image forming apparatus is provided. A backup face disposed on an upward face of the control box makes contact with a backup reception part that is disposed on a downward face of a belt cleaning device, and supports a steering roller and cleaning blade. The backup face reduces the force that acts on the frame stay and so forth, following the sliding friction of the intermediate transfer belt and cleaning blade. The backup reception part and backup reception part are formed so that even if the steering roller moves in the tension application direction, the predetermined contact state can be maintained.

主权项

1. An image forming apparatus comprising:
a belt unit, including,
a belt member,a steering unit, anda tilting shaft,
the belt member configured to be moved in a moving direction and bear toner images,the steering unit, configured to be tilted in a belt unit for moving a position of the belt member with respect to a width direction crossing the moving direction, including, a steering roller, a cleaning blade, a supporting member, and a first abutted portion,
the steering roller configured to rotatably stretch the belt member and to be tilted,the cleaning blade, configured to abut the surface of the belt member at a position facing the steering roller across the belt member for removing toner, the cleaning blade being applied a frictional force caused by moving of the belt member in the moving direction,the supporting member configured to support the steering roller and the cleaning blade in a body,the first abutted portion disposed at an outer surface of the steering unit, the tilting shaft configured to rotatably support the steering unit, a direction of the tilting shaft being perpendicular to a direction of an axis of the steering roller, and a second abutted portion, disposed at a position facing the first abutted portion, configured to receive an applied force to the first abutted portion caused by the frictional force during moving of the belt member in the moving direction.