| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing cartridge capable of achieving smooth assembling work.SOLUTION: A developing cartridge 1 comprises: a developing roller 4; a supply roller 5; and a housing 2 having a developing chamber 8 housing the developing roller 4 and the supply roller 5, and a toner chamber 7 housing toner. The housing 2 comprises: a conveyance rib 90 protruding downwardly from a bottom wall 50 and guiding conveyance of a paper sheet S; and a pair of engaging bosses 91 regulating the movement of the housing 2 when engaged with an exterior member. The pair of engaging bosses 91 are arranged on a toner chamber 7 side with respect to a central axis A2 of the supply roller 5 in the forward and backward directions, and a lower end portion of the conveyance rib 90 is positioned on the opposite side of each lower end portion of the pair of engaging bosses 91 with respect to an outer surface of the bottom wall 50. |
