| 摘要 |
In order to prevent a section to be detected from interfering with the insertion and removal of a cartridge from within the main device body and to prevent damage to the section to be detected as a result of impact with other members, and the like, an input gear (45) is disposed in the first sidewall (41) of a developer cartridge (7) in manner that is rotatable around a central axis line (511). A driving force is input from a drive output member (56) to the input gear (45). In addition, a rotor to be detected (50), which has a first section to be detected (70) and a second section to be detected (71), is disposed on the first sidewall (41). When the driving force is input from the drive output member (56) to the input gear (45), the rotor to be detected (50) is moved, and the first section to be detected (70) and the second section to be detected (71) advance outwards (leftwards). As the movement of the rotor to be detected (50) progresses, the first section to be detected (70) advances to the outermost position farthest separated in the facing direction of the first sidewall (41) and a second sidewall (42), and the first section to be detected (70) and the second section to be detected (71) retreat inwards thereafter. |
