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. 03, 2024
Filed:
Jun. 21, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Mitsuru Yamatani, Ibaraki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member, an intermediate transfer belt, and current supply devices. If (i) a current balance of a current supplied to the intermediate transfer belt is Ia-Ib where Ia is a sum of current densities of positive currents supplied from an outer to an inner peripheral surface of the intermediate transfer belt and Ib is a sum of current densities of positive currents supplied from the inner to the outer peripheral surface and (ii) an electric resistance of the intermediate transfer belt relative to the current balance is larger when the current balance is a negative of a predetermined value than when it is a positive of the predetermined value, a control unit performs constant current control on a discharge current supplied to the intermediate transfer belt during a print job such that, based on current supply detection, the current balance is positive.