Developing cartridge provided with detection body

摘要

A receiving member configured to receive a driving force from outside is mounted on a first side wall on an opposite side from a developer accommodating portion and is rotatable around a first axis line parallel to the longitudinal direction. A rotating member is rotatably provided between the first and second side walls and configured to be rotated by the driving force received by the receiving member. A detection body is mounted on the second side wall on an opposite side from the developer accommodating portion and includes a detected part which is detected by a detecting unit. The detection body advances outwards in the longitudinal direction with respect to the second side wall and retracts inwards in the longitudinal direction with respect to the second side wall by the driving force received by the receiving member.

主权项

1. A developing cartridge comprising:
a developing roller including a developer roller shaft extending in a direction; a housing configured to accommodate developer therein, the housing having a first side and a second side separated from the first side in the direction; a coupling positioned to the first side of the housing, the coupling including a gear part being rotatable with the coupling; an idle gear positioned to the first side of the housing, the idle gear engaging with the gear part of the coupling; a first gear positioned to the first side of the housing, the first gear engaging with the idle gear; a shaft to which the first gear is mounted, the shaft being rotatable with the first gear; a second gear positioned to the second side of the housing, the second gear being mounted to the shaft, the second gear being rotatable with the shaft; and a detection body positioned to the second side of the housing, the detection body including a gear part engageable with the second gear, the detection body being rotatable with the gear part of the detection body.