| 摘要 |
A developing cartridge (19) that is attachable to and detachable from a drum cartridge (18) having a photosensitive drum (20) is provided with a filling part (85) for filling a toner, the filling part (85) being provided so as to protrude toward the right side. By pressing the filling part (85) with a lock lever (65) of the drum cartridge (18), the developing cartridge (19) is moved from an attached position in which same is attached to the drum cartridge (18) to a detachable position in which same is detachable from the drum cartridge (18). |
