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:
Aug. 23, 2022
Filed:
Oct. 26, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Makoto Kikugawa, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a state in which wireless communication with a wireless operation device is disconnected, an instruction cannot be issued from the wireless operation device to an image forming apparatus main body. Thus, if the image forming apparatus main body enters a sleep mode, for example, an instruction for shifting the image forming apparatus main body from the sleep mode to a standby mode cannot be issued from the wireless operation device. In standby mode, a power source is controlled to supply power to an image forming unit and a wireless communication unit; in light sleep mode, the power source is caused not to supply power to the image forming unit and supply power to the wireless communication unit; and in deep sleep mode, the power source is caused not to supply power to the image forming unit and the wireless communication unit.