Patent ID: 11860565
Assignee: CANON KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. A restricting member configured to restrict a thickness of a layer of developer on a developer carrying member, the restricting member comprising:
(i) a blade portion that extends in a longitudinal direction, and includes a first end portion and a second end portion opposite to the first end portion in a transverse direction orthogonal to the longitudinal direction; and
(ii) a supporting portion configured to support the first end portion of the blade portion,
wherein the second end portion of the blade portion includes a contact portion configured to contact a surface of the developer carrying member, a first surface on which the contact portion is provided a third surface that is an end surface on a transverse side of the second end portion in the transverse direction, and a second surface which is between the first surface and the third surface,
wherein the second surface extends to an end of the third surface on a side of the developer carrying member from an end of the first surface on a side of the second end portion so that the second surface is farther away from both the first surface and the developer carrying member as the second surface goes toward the third surface, and
wherein, in a case where, in a cross section orthogonal to the longitudinal direction, a region is demarcated by connecting an intersection point where an imaginary extension line of the first surface intersects an imaginary extension line of the third surface in the cross section, the end of the first surface, and the end of the third surface, an area of the region at an end portion of the blade portion in the longitudinal direction is smaller than an area of the region at a central portion of the blade portion in the longitudinal direction.