To provide a cleaning device having high quality for suppressing vibrations of cleaning blade which is the generation source for noise and the cause of cleaning faults.

The cleaning device 4 comprises a cleaning member 41 for contacting an edge part on the surface of a movable member to be cleaned 1 and sliding the edge part on the surface of the member to be cleaned 1 for removing foreign matter on the surface of the member to be cleaned 1, and a support member 42 for supporting the cleaning member 41. The cleaning device 4 makes at least only a part of the maximum image forming region on the surface of the member to be cleaned 1 in the width direction non-linear in end shape, in the width direction of the support member 42 at a side for supporting the cleaning member 41.