Patent ID: 9639026
Date: 2017-05-02
CPC Classifications: G03G

Claim:
1. A cartridge comprising: a housing configured to accommodate therein developer; a driving receiving part configured to receive a driving force; a transmission gear configured to rotate about a rotational axis by receiving the driving force from the driving receiving part; a toothless gear configured to be engaged with the transmission gear, the toothless gear being configured to rotate about a rotational axis by receiving a driving force from the transmission gear, the toothless gear including: a detected part configured to be moved by rotation of the toothless gear, wherein the toothless gear is configured to rotate from a first state to a second state in accordance with rotation of the transmission gear, wherein the toothless gear is configured to rotate from the second state to a third state in accordance with rotation of the transmission gear, the first state being a state where the first teeth part of the toothless gear is engaged with the transmission gear and the driving force from the driving receiving part is transmitted to the toothless gear, the second state being a state where the first toothless part of the toothless gear faces the transmission gear and the transmission of the driving force from the driving receiving part to the toothless gear is released, and the third state being a state where the second teeth part of the toothless gear is engaged with the transmission gear and the driving force from the driving receiving part is transmitted to the toothless gear.