Color electrophotographic image forming apparatus with cartridge supporting member and moving members supporting electric contacts

摘要

A color image forming apparatus to which a plurality of cartridges are detachably mounted, including: main body side positioning portions provided on an apparatus main body; a cartridge supporting member detachably supporting the cartridges having cartridge side electric contacts and cartridge side positioned portions, and movable among a first position for forming images, a second position retracted from the first position, and a third position where the cartridges are pulled out of the main body; a pressing member pressing the positioned portions on the positioning portions; and main body side electric contacts provided on the main body, wherein the electric contacts are directly and electrically connected to the electric contacts when the positioned portions are pressed on the positioning portions by the pressing member.

主权项

1. A color electrophotographic image forming apparatus to which a plurality of cartridges are detachably mounted to form a color image on a recording medium, the color electrophotographic image forming apparatus comprising:
main body side positioning portions provided on a main body of the color electrophotographic image forming apparatus for the plurality of cartridges, respectively; a cartridge supporting member movable between an inside position in the main body and an outside position that is outside of the main body in a state of detachably supporting the plurality of cartridges having cartridge side electric contacts and cartridge side positioned portions, the cartridge supporting member moving between (i) a first position where the plurality of cartridges are located at an image forming position at which the plurality of cartridges form images at the inside position, and (ii) a second position where the plurality of cartridges are retracted from the first position at the inside position; a pressing member that presses the plurality of cartridges in association with a movement operation of the cartridge supporting member from the second position to the first position so as to press the cartridge side positioned portions onto the main body side positioning portions; main body side electric contacts provided on the main body for the plurality of cartridges, respectively, the main body side electric contacts being electrically connected to the cartridge side electric contacts by a movement of the cartridge supporting member from the second position to the first position; and moving members provided in the main body, the moving members supporting the main body side electric contacts and the moving members being moved along a movement direction of the cartridge supporting member by the cartridge supporting member engaging with the moving members in association with the movement of the cartridge supporting member from the second position to the first position so that the moving members are moved to positions in which the main body side electric contacts are electrically connected to the cartridge side electric contacts, wherein, in a state in which the cartridge side positioned portions are pressed against the main body side positioning portions by a pressing force of the pressing member, the cartridge side electric contacts are directly and electrically connected to the main body side electric contacts so that the main body and the plurality of cartridges are electrically connected to each other.