US 12,346,057 B1
Process cartridge
Xiaomin Gong, Xinyu (CN); Shiping Ao, Xinyu (CN); Rongli Xu, Xinyu (CN); and Liangliang Hu, Xinyu (CN)
Assigned to JIANGXI YIBO E-TECH CO, LTD., Xinyu (CN)
Filed by JIANGXI YIBO E-TECH CO. LTD., Xinyu (CN)
Filed on Mar. 20, 2025, as Appl. No. 19/084,870.
Application 19/084,870 is a continuation in part of application No. PCT/CN2023/120759, filed on Sep. 22, 2023.
Claims priority of application No. 202222514027.5 (CN), filed on Sep. 22, 2022; application No. 202222606339.9 (CN), filed on Sep. 30, 2022; application No. 202222648690.4 (CN), filed on Oct. 8, 2022; application No. 202222941365.7 (CN), filed on Nov. 5, 2022; application No. 202321394687.2 (CN), filed on Jun. 2, 2023; application No. 202321986045.1 (CN), filed on Jul. 26, 2023; and application No. 202410582510.8 (CN), filed on May 11, 2024.
Int. Cl. G03G 21/18 (2006.01)
CPC G03G 21/1814 (2013.01) [G03G 21/1821 (2013.01); G03G 21/1857 (2013.01); G03G 21/1867 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A process cartridge, comprising:
a photosensitive drum configured to rotate about a photosensitive drum rotation axis extending in a first direction;
a drum unit comprising the photosensitive drum;
a developing roller configured to deposit toner on the photosensitive drum, the developing roller being rotatable about a developing roller rotation axis extending in the first direction;
a developing unit comprising the developing roller and being movable relative to the drum unit between a developing position in which the toner is capable of being deposited onto the photosensitive member from the developing roller, and a separation position where at least a part of the developing roller is separated from the photosensitive drum;
a chip having an electrical contact surface;
an elastic component; and
a retaining component;
wherein the elastic component is configured to bias the developing unit, from the developing position to the separation position;
wherein the retaining component has a protrusion movable relative to the developing unit;
wherein the developing unit or the drum unit has an abutment part, and the protrusion is configured to engage the abutment part, and to maintain the developing unit in the separation position;
wherein the developing unit further comprises a first coupling member configured to drive the developing roller to rotate; and
wherein when the developing unit is in the separation position and the first coupling member rotates, the retaining component is configured to move in response to rotation of the first coupling member, thereby causing the protrusion to disengage from the abutment part to allow the developing unit to move from the separation position to the developing position.