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:
Oct. 22, 2024
Filed:
Mar. 10, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Shuichi Tetsuno, Kanagawa, JP;
Toshihiko Takayama, Kanagawa, JP;
Shuhei Tokiwa, Tokyo, JP;
Shimpei Ishikawa, Kanagawa, JP;
Shunsuke Matsushita, Kanagawa, JP;
Mikihiko Hamada, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image-forming apparatus to execute an image-forming operation includes an image bearing member, a charging member to charge at a charging portion a surface of, and a developing member to supply at a developing portion toner to, the image bearing member. When a rotating image bearing member stops rotating, a surface potential of the image bearing member formed on the developing portion is defined as V, a developing voltage applied to the developing member is defined as V, a charging voltage applied to the charging member is defined as V, and a surface potential of the image bearing member formed on the charging portion is defined as V. A first potential difference, which is a potential difference between Vand V, and a second potential difference, which is a potential difference between Vand V, are controlled based on information about a number of execution times of the image-forming operation.