Patent ID: 7773905

Claim:
A color electrophotographic image forming apparatus including a main assembly to which process cartridges each including an electrophotographic photosensitive drum and process means actable on said electrophotographic photosensitive drum are detachably mountable, said color electrophotographic image forming apparatus comprising: a movable member having a plurality of supporting portions for supporting a plurality of said process cartridges in juxtaposition, said movable member being movable between a set position inside said main assembly of the apparatus and a position outside said main assembly of the apparatus in a direction crossing a longitudinal direction of said electrophotographic photosensitive drum in a state in which a plurality of said process cartridges are supported on said plurality of supporting portions; a common electroconductive member which is common to said process cartridges and which is extended on said movable member in a direction of movement of said movable member, said common electroconductive member having a length enough to contact to longitudinal ends of said process cartridges which are supported in juxtaposition with each other on said plurality of supporting portions; an electrical contact portion which is provided, for each of said plurality of supporting portions, on said movable member and which is electrically connected with said common electroconductive member, said electrical contact portion being electrically connectable with a cartridge electrical contact provided on each of said process cartridges; a main assembly electrical contact electrically connectable with said common electroconductive member to supply electric power to said common electroconductive member from said main assembly of the apparatus at least when said movable member is placed at the set position; wherein the electric power can be supplied from the main assembly of the apparatus to the process cartridges supported on respective supporting portions of said movable member placed at the set position through said main assembly electrical contact, said common electroconductive member and respective electrical contact portions.