Patent ID: 7817936

Claim:
A color electrophotographic image forming apparatus in which a plurality of cartridges are detachably mounted to an apparatus main body to form an image on a recording medium, the color electrophotographic image forming apparatus comprising: a cartridge supporting member detachably supporting the plurality of cartridges and movable between an inside position in which the cartridge supporting member is inside the apparatus main body and a pullout position in which the cartridge supporting member is pulled out from the inside position to an outside of the apparatus main body; and a first opening portion through which the cartridge supporting member passes, wherein the plurality of cartridges are arranged side-by-side and supported on the cartridge supporting member so that a longitudinal direction of each of the plurality of cartridges is orthogonal to a pullout direction, of the cartridge supporting member in which the cartridge supporting member moves from the inside position to the pullout position, and a cartridge, which is heaviest among the plurality of cartridges, is supported most upstream of the pullout direction, and in a state in which the cartridge supporting member is positioned at the pullout position, the heaviest cartridge is positioned inside the apparatus main body, and a second opening portion is located above the heaviest cartridge.