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:
May. 28, 2019
Filed:
Mar. 05, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Tomohiro Saito, Kashiwa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a photoconductor, an intermediate transfer belt, a metal transfer roller configured to transfer a toner image carried on the photoconductor to the intermediate transfer belt at a transfer position when a voltage is applied from a power supply, a detection portion configured to detect a current flowing when a voltage is applied to the transfer roller from the power supply, and a controller. The controller is capable of executing a mode in which a plurality of voltages higher than a discharge starting voltage is applied from the power supply to the transfer roller during a period other than a transfer period when the toner image carried on the photoconductor is transferred to the intermediate transfer belt. The controller is configured to output information regarding a lifetime of the intermediate transfer belt based on a current flowing when the plurality of voltages is applied to the transfer roller.