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:
Sep. 29, 2026
Filed:
Oct. 03, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Hosu Yeu, Shizuoka, JP;
Masataka Mochizuki, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an apparatus main body, an image bearing member, a first cartridge that has a charging member, a second cartridge, an exposure unit that has a light-emitting portion that is capable of switching between an emitting state and a non-emitting state, the exposure unit entering the non-emitting state in a state in which the second cartridge is detached from the apparatus main body, a current detecting portion that detects a charge current flowing in the charging member, a potential changing portion that changes a potential of a surface of the image bearing member, and a determination portion that determines whether or not the first cartridge is attached to the apparatus main body, and whether or not the second cartridge is attached to the apparatus main body, on the basis of the charge current detected by the current detecting portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile