Patent ID: 9268302
Filing Date: 2016-02-23
CPC Classification: G03G

Claim Text:
1. A color electrophotographic image forming apparatus, including detachable cartridges, for forming a color image on a recording material, said apparatus comprising: a plurality of electrophotographic photosensitive drums configured to develop images; an intermediary transfer member onto which developed images formed on said electrophotographic photosensitive drums are transferred, said intermediary transfer member being provided opposite to said electrophotographic photosensitive drums; an image forming unit comprising a plurality of cartridge mounting portions for demountably mounting said cartridges, being movable between a transfer position for transferring, onto the recording material, the developed images transferred onto said intermediary transfer member from said electrophotographic photosensitive drums, and a mounting and demounting position for mounting and demounting said cartridges relative to said cartridge mounting portions; and a locking member for releasably locking said image forming unit which is moved to the mounting and demounting position to prevent said image forming unit from moving from the mounting and demounting position to the transfer position.