Patent attributes
The image forming apparatus includes a cooling device for cooling a plurality of cartridges, and a plurality of shielding members for shielding the plurality of openings, respectively. Each developing member is movable between a first position at which the developing member is brought into contact with a photosensitive member and a second position at which the developing member is caused to separate from the photosensitive member. Each of the plurality of shielding members is caused to move in association with a position of the developing member of the cartridge opposed to the opening to be shielded by the each of the shielding members. A gap between the opening and the shielding member the second position of the developing member is smaller than a gap therebetween at the first position of the developing member is.
