Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorRan Kudo
Life of this patent
Estimating the term…
Abstract
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.
Claims8
An image forming apparatus comprising:
- an endless belt member;
- a driving roller configured to stretch and drive the belt member;
- a steering roller configured to stretch the belt member, at a position away from the driving roller, and to rotate following the belt member;
- a steering roller supporting unit configured to rotatably support the steering roller;
- a cleaning unit, including a cleaning member that abuts against the belt member at a position facing the steering roller and cleans the belt member, configured to be supported by the steering roller supporting unit which rotatably supports the steering roller;
- a frame member;
- a first supporting mechanism that is disposed on the frame member, and tiltably supports the steering roller and the cleaning unit on a predetermined rotational axis that is perpendicular to the rotational axis of the steering roller;
- and
- a second supporting mechanism that tiltably supports the cleaning unit on the predetermined rotational axis, so as to reduce the force applied to the first supporting mechanism caused by the movement of the belt member.
Dependencies are inferred from the claim text.