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:
Dec. 13, 2022
Filed:
Sep. 08, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Yoshiaki Hara, Chiba, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image formation apparatus includes a development unit, a circuit board, a conduction member, a coil spring, and a holding member. The development unit develops an electrostatic image formed on a photoconductive drum. The circuit board supplies a voltage to the development unit. The conduction member electrically connects the development unit and the circuit board. The coil spring includes a coil part in contact with the conduction member and an arm part of the coil spring provided integrally with the coil part and extending from an end of the coil part outward in a radial direction with respect to the coil part. The holding member includes a spring regulation part to regulate movement of the coil spring in the radial direction. The holding member holds the coil spring in contact with the conduction member. The arm part includes a hook portion to engage with a portion of the holding member.