Patent ID: 8995874
Filing Date: 2015-03-31
Classification: G03G

Abstract:
1. An electrophotographic image forming apparatus comprising: a plurality of electrophotographic photosensitive members; an exposing unit configured to form electrostatic latent images on the plurality of electrophotographic photosensitive members; a plurality of detachable cartridges configured to develop the electrostatic latent images to developer images; a support frame that rotatably supports the plurality of electrophotographic photosensitive members and detachably supports the plurality of cartridges at positions opposing the respective plurality of electrophotographic photosensitive members; and a covering member that can be located at a closing position at which an opening for mounting and demounting the plurality of cartridges is closed and an opening position at which the opening is opened, the covering member having an urging member that urges the plurality of cartridges to the electrophotographic photosensitive members when the covering member is at the closing position, wherein the support frame is configured to be mounted to and demounted from a main body of the electrophotographic image forming apparatus, and wherein the exposing unit is movably mounted to the covering member via a plurality of elastic members and has an engaging portion that allows positioning of the exposing unit to the support frame by engaging with the support frame when the covering member is located at the closing position, wherein the plurality of elastic members includes a first elastic member and a second elastic member, and when the covering member is located at the closing position, the first elastic member urges the exposing unit in a first direction that brings the exposing unit close to the plurality of cartridges and the second elastic member urges the exposing unit in a second direction along an axial direction of the electrophotographic photosensitive member, and wherein when the covering member is located at the closing position, the positioning of the exposing unit is performed in the first direction and the second direction.