Developing Cartridge Including Detection System for Determining Presence of Developing Cartridge

摘要

A developing cartridge is provided. The developing cartridge includes a housing which accommodates developer therein, a receiving member provided which couples with a force output member of an image forming apparatus to receive a driving force, a developing roller which rotates by the driving force received by the receiving member; a detectable rotary member having a first detectable portion and a second detectable portion and rotates by the driving force from a first rotational position where the first detectable portion is detected by a detection member provided in the image forming apparatus to a second rotational position where the second detectable portion is detected by the detection member, and a cut-off mechanism which cuts off a transmission of the driving force from the receiving member to the detectable rotary member in a state where the detectable rotary member is positioned in the second rational position.

主权项

1. A developing cartridge comprising:
a developing roller extending in an extending direction; and a first rotary member being rotatable about a first axis extending in the extending direction from a first position to a second position, the first rotary member including:
a first protrusion extending in the extending direction, the first protrusion being rotatable with the first rotary member; anda second protrusion extending in the extending direction, the second protrusion being rotatable with the first rotary member; wherein the first protrusion is in a detection position in a case where the first rotary member is in the first position, and wherein the second protrusion is in the detection position in a case where the first rotary member is in the second position.