US 12,449,744 B2
Developing cartridge
Hao Yang, Zhuhai (CN); Qin Luo, Zhuhai (CN); Hailong Ma, Zhuhai (CN); Xianwen Wang, Zhuhai (CN); Wenjie Zhao, Zhuhai (CN); Xin Lv, Zhuhai (CN); Tiansheng Peng, Zhuhai (CN); Hao Deng, Zhuhai (CN); Xiaoming Liang, Zhuhai (CN); Wenjun Yu, Zhuhai (CN); Junyu Tao, Zhuhai (CN); Xiaolong Yang, Zhuhai (CN); Chen Cheng, Zhuhai (CN); and Yongdi Chen, Zhuhai (CN)
Assigned to Zhuhai Ninestar Information Technology Co. , Ltd, Zhuhai (CN)
Filed by Zhuhai Ninestar Information Technology Co., Ltd, Zhuhai (CN)
Filed on Jan. 17, 2025, as Appl. No. 19/029,999.
Application 19/029,999 is a continuation of application No. PCT/CN2024/087275, filed on Apr. 11, 2024.
Claims priority of application No. 202320924029.3 (CN), filed on Apr. 21, 2023; application No. 202322609512.5 (CN), filed on Sep. 22, 2023; application No. 202322830698.7 (CN), filed on Oct. 20, 2023; and application No. 202323088502.8 (CN), filed on Nov. 15, 2023.
Prior Publication US 2025/0164905 A1, May 22, 2025
Int. Cl. G03G 15/08 (2006.01); G03G 21/16 (2006.01); G03G 21/18 (2006.01)
CPC G03G 15/0813 (2013.01) [G03G 15/0863 (2013.01); G03G 15/0896 (2013.01); G03G 21/1647 (2013.01); G03G 21/1821 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A developing cartridge, comprising:
a casing configured to accommodate developer therein, the casing having a first side and a second side arranged oppositely in a first direction, and a third side and a fourth side arranged oppositely in a second direction, the first direction and the second direction intersecting;
a developing roller rotatable about a first axis extending in the first direction, the developing roller being positioned at the third side;
a coupling rotatable about a second axis extending in the first direction, the coupling being positioned at the first side;
a storage medium including an electrical contact surface, the electrical contact surface being positioned at the first side;
a separation member protruding in the first direction, the separation member receiving a separation force to cause the casing to move, and the separation member being positioned at the first side; and
an abutting member positioned at the second side, the abutting member being able to contact with a drum cartridge,
wherein the separation member causes the casing to swing with the abutting member as a fulcrum.