The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2026
Filed:
Apr. 29, 2025
Zhuhai Yanqi Technology Co., Ltd., Zhuhai, CN;
Yu Zhu, Zhangjiajie, CN;
ZHUHAI YANQI TECHNOLOGY CO., LTD., Zhuhai, CN;
Abstract
A process cartridge includes a developing unit frame, a developing roller rotatably supported by the developing unit frame, a power supply member capable of being electrically connected to the developing roller, and a grounding member capable of switching between a state of being electrically connected to the developing roller and a state of not being electrically connected to the developing roller. With a process cartridge having such a structure, during cleaning operations, separation of the developing roller and a photosensitive drum is unnecessary, and the technical problem of print defects caused by toner transfer from the developing roller onto the photosensitive drum during cleaning operations is simultaneously solved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile