Image forming apparatus

摘要

An image forming apparatus includes an apparatus main body, a housing, a photosensitive drum, a cleaning blade, a contact portion, and a contacted portion. The housing and drum are disposed in an internal space of the main body. The blade is a plate-shaped elastic member extending in an axial direction of a rotational axis of the drum, is supported by the housing, and contacts a circumferential surface of the drum for cleaning. The contact portion is disposed opposite the housing in the main body. The contacted portion is disposed at a center portion, in the axial direction, of the housing and is contacted by the contact portion. A position of the center portion, in the axial direction, of the housing is adjusted in a cross section intersecting the axial direction by the housing being inserted into the internal space and the contact portion coming into contact with the contacted portion.

主权项

1. An image forming apparatus comprising:
an apparatus main body having an internal space; a photosensitive drum having a rotational axis and a circumferential surface, disposed in the internal space, and configured to rotate around the rotational axis and to carry a toner image on the circumferential surface; a housing fixed to the apparatus main body after being inserted into the internal space in a direction along an axial direction of the rotational axis; a cleaning blade formed of a plate-shaped elastic member provided so as to extend in the axial direction of the rotational axis, supported by the housing, and contacting with the circumferential surface of the photosensitive drum to clean the photosensitive drum; a contact portion disposed in the apparatus main body so as to oppose the housing, the contact portion being a pin which is provided so as to extend along the axial direction and has an outer circumferential surface; and a contacted portion disposed at a center portion, in the axial direction, of the housing and contacted with by the contact portion, the contacted portion being a standing wall which is provided in a standing manner on the center portion of the housing and has a positioning hole into which the pin is inserted, wherein a position of the center portion, in the axial direction, of the housing is adjusted in a cross section intersecting the axial direction by the housing being inserted into the internal space and the outer circumferential surface of the pin coming into contact with an inner circumferential surface of the standing wall which inner circumferential surface is formed by the positioning hole.