Patent ID: 9261820
Filing Date: 2016-02-16
CPC Classification: G03G

Claim Text:
1. A cleaning device comprising: a cleaning portion configured to remove toner that has adhered to a surface of a rotation body; a polishing roller configured to polish a surface of the rotation body by rotating in a state where a surface of the polishing roller is in contact with the surface of the rotation body and the toner removed by the cleaning portion has adhered to the surface of the polishing roller; a layer thickness restricting member configured to restrict a layer thickness of the toner that has adhered to the surface of the polishing roller; and a swaying portion configured to cause the polishing roller to sway in an axis direction of the rotation body, the swaying portion including: a biasing portion configured to bias the polishing roller in a biasing direction which is one of opposite directions of the axis direction of the rotation body; an undulating portion provided on the polishing roller and having a first undulating surface on a side portion thereof that is on a front side in the biasing direction; and a support portion fixed at a predetermined position, having a second undulating surface facing the first undulating surface and configured to support, on the second undulating surface, the undulating portion biased by the biasing portion, wherein the biasing portion includes a pair of helical gears that are respectively provided on a shaft of the rotation body and a shaft of the polishing roller in such a way as to mesh with each other, and wherein the undulating portion includes one of the pair of helical gears that is provided on the shaft of the polishing roller.