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:
Mar. 07, 2023
Filed:
Jan. 11, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Fukashi Hatano, Chiba, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical sensor irradiates a control toner image formed on an intermediate transfer belt with light and detects reflection light of the light. A controller executes an abnormality diagnosis mode in a case where change in the phase of a cam is not detected by a phase detection portion until an elapse of a predetermined time or more since a start of output of a driving signal for driving a separation mechanism. In execution of the abnormality diagnosis mode, the controller outputs the driving signal for driving the separation mechanism, and is capable of outputting information about an abnormality of the phase detection portion and information about an abnormality of the separation mechanism and/or a driving unit on a basis of a detection result of the optical sensor that is obtained in a case where the light is radiated from the optical sensor while the driving signal is output.