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:
Feb. 25, 2020
Filed:
Apr. 02, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Shotaro Ishihara, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A cleaning unit includes a case, a blade, a swing member, a first coil spring, a second coil spring, and a plurality of first engaging portions. The first coil spring is provided on a first end side of the blade in the longitudinal direction and configured to pull the swing member. The second coil spring is provided on a second end side of the blade in the longitudinal direction and configured to pull the swing member. The plurality of first engaging portions are provided on one of the case or the swing member at the first end side of the blade and configured to selectively engage a one end side of the first coil spring at different positions with respect to the longitudinal direction of the blade so that a contact pressure of the blade against the image bearing member caused by the first coil spring is changed.