Process cartridge and image forming apparatus

摘要

A process cartridge is detachably mounted on an apparatus main body of an image forming apparatus. An embodiment of the cartridge includes a developer bearer arranged to be opposed to an image bearer in a developing device and rotates; a positioning member that supports the image bearer and the developer bearer at respective ends thereof, and fixes a distance between rotating shafts of the image bearer and the developer bearer; a rotating shaft arranged on a rotating member arranged on the developing device, and having a part protruding from an outer surface of a housing frame of the process cartridge; a gear that is arranged at a distal end of the rotating shaft and transmits a rotational driving force transmitted from the apparatus main body; and a bearing that is arranged between the positioning member and the gear, is fixed to the housing frame, and supports the rotating shaft.

主权项

1. A process cartridge including at least an image bearer and a developing device among the image bearer, a charging device, the developing device, and a cleaning device in an integral manner, and that is detachably mounted on an apparatus main body of an image forming apparatus, the process cartridge comprising:
a developer bearer, arranged opposed to the image bearer in the developing device and rotatable in a certain direction while bearing a developer; a positioning member that supports the image bearer and the developer bearer at respective ends thereof in a rotating shaft direction in a rotatable manner, and fixes a distance between a rotating shaft of the image bearer and a rotating shaft of the developer bearer; a rotating member arranged on the developing device; a rotating shaft arranged on the rotating member, and including a part in a longitudinal direction protruding from an outer surface of a housing frame of the process cartridge; a gear, arranged at a distal end of the protruding rotating shaft, to transmit a rotational driving force transmitted from the apparatus main body to the rotating member; and a bearing, arranged between the positioning member and the gear and fixed to the housing frame, that supports the rotating shaft in a rotatable manner.