Patent ID: 7711308

Claim:
A cleaning device that removes deposit on a surface of a surface moving member that rotates in a surface moving direction, the cleaning device comprising: a cleaning blade made of an elastic member elongated along a rotation axis of the surface moving member, the cleaning blade including a longitudinal edge formed along its elongated direction, the longitudinal edge being pressed against the surface of the surface moving member at a contact point in a counteracting direction that intersects the surface moving direction, thereby removing the deposit from the surface of the surface moving member, a first surface that is positioned at a downstream of the contact point in the surface moving direction with respect to a normal line to the surface of the surface moving member at the contact point, the first surface making a predetermined angle with a tangent line to the surface moving member at the contact point, a second surface that is positioned at an upstream of the contact point in the surface moving direction with respect to the normal line, the second surface adjoining with the first surface to form the longitudinal edge, and a third surface that is positioned on an opposite side of the second surface, adjoining with the first surface at the downstream of the contact point; a warp restrictive member that is attached on the third surface, the warp restrictive member restricting a warp in the cleaning blade, the warp being formed in a manner that the second surface expands and the third surface shrinks; and a holding member that is supported by a main body of the cleaning device at the downstream of the contact point, the holding member holding the cleaning blade via the warp restrictive member, wherein a thickness of the cleaning blade in a direction of the normal line is thicker than a thickness of the cleaning blade in the surface moving direction.