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. 13, 2026
Filed:
Apr. 10, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Masahide Hirai, Shizuoka, JP;
Shun-Ichi Ebihara, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a cartridge and a main assembly. The main assembly includes an acquiring portion, a switching mechanism, a detecting portion, and a controller. The controller controls the switching mechanism so that in a first period until an acquisition value on a use amount of the cartridge reaches a threshold, switching from the restricted state to the non-restricted state is not permitted in a case that abnormality of the cartridge is not detected by the detecting portion, and the switching from the restricted state to the non-restricted state is permitted in a case that the abnormality of the cartridge is detected by the detecting portion, and so that in a second period after the acquisition value reached the threshold, the switching from the restricted state to the non-restricted state is permitted.