| 摘要 |
A toner receiving member (70), which is open upward, is provided at a position vertically below a lower end of a contact surface between a side seal member (63) and a developing roller (40). The toner receiving member can receive and store toner which has leaked. In addition, when a developing cartridge (34) is removed from a main body casing and then placed on a horizontal surface such as a desktop, a front wall (70B), which then serves as a bottom surface of the toner receiving member, faces upward. Toner collected in the toner receiving member may be prevented from leaking.
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