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. 09, 2021
Filed:
Sep. 06, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Hajime Motoyama, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
In an image forming apparatus, if a controller detects an abnormality in an output voltage of the power source device, the controller notifies the abnormality of the power source device. If the controller detects no abnormality in the output voltage after image data is input and before a scanner motor is activated in response to the input of the image data, the controller activates the scanner motor. If a rotary polygon mirror does not reach a target speed within a predetermined time, the controller re-detects whether there is an abnormality in the output voltage. If the controller detects an abnormality in the output voltage, the controller notifies the abnormality of the power source device. If the controller detects no abnormality in the output, the controller notifies the abnormality of the optical scanning device.