| 摘要 |
Provided is a developer replenishment container that is detachable from a developer replenishment device, wherein the developer replenishment container has: a pump part provided so as to act on a developer discharge chamber, the pump part varying the capacity of the developer discharge chamber in a manner concomitant with a reciprocating movement; cam grooves comprising a cam groove for converting a rotational drive force that is input to a gear part to a force for reducing the capacity of the pump part, a cam groove for converting the rotational drive force to a force for increasing the capacity of the pump part, and a cam groove for not converting the rotational drive force to a force acting on the pump part; and a phase detecting part for stopping the rotation of a conveying part at any one of the cam grooves. |
