| 摘要 |
A color electrophotographic image forming apparatus including: an opening in a main body; a door opening and closing the opening; a first tray movable between an inside position and an outside position through the opening while removably supporting drum cartridges having photosensitive drums; a second tray movable between the inside position and the outside position through the opening while removably supporting developing cartridges having developing rollers; a transfer member to which toner images are transferred from the photosensitive drums; and a positioning member, which releases, when the door is opened, an engagement between engaging portions of the developing cartridges and engaged portions of the drum cartridges to hold the developing cartridges so that the second tray can be pulled out, and which engages, when the door is closed, the engaging portion with the engaged portion to position the developing cartridges for image formation.
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