Developing Cartridge Having Coupling and Developing Roller

摘要

In a cartridge, a housing has a developer accommodating portion and includes a first side wall and a second side wall. A coupling member is disposed at a position opposite to the developer accommodating portion with respect to the first side wall. A detection body is disposed at a position opposite to the developer accommodating portion with respect to the second side wall. A first driving force transmission member is positioned at the same side with the coupling member with respect to the first side wall, and transmits driving force from the coupling member to a rotating member. A second driving force transmission member is positioned at the same side with the detection body with respect to the second side wall, and transmits driving force from the rotating member to the detection body.

主权项

1. A cartridge comprising:
a shaft extending in an extending direction, the shaft including a first end portion and a second end portion separated from the first end portion in the extending direction; a first gear mounted to the first end portion and rotatable with the shaft; a second gear mounted to the second end portion and rotatable with the shaft; a coupling rotatable about a first axis extending in the extending direction; a coupling gear rotatable with the coupling about the first axis; an idle gear meshing with the coupling gear and the first gear; and a third gear including a plurality of gear teeth on a portion of a circumference of the third gear, the third gear meshing with the second gear.