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:
Jul. 13, 2021
Filed:
Jul. 31, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Shuji Obata, Noda, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus capable of reducing execution time of a process for shifting the image forming apparatus from a normal operation mode to a low-power consumption operation mode. A sub interrupt controlleris connected to units and performs notification to a sub CPU in accordance with occurrence of a return trigger in any of the units. When shifting from the normal operation mode to the low-power consumption operation mode, a main CPU transmits mode instruction information indicative of the low-power consumption operation mode to the sub CPU. The sub CPU stores one or a plurality of units associated with the low-power consumption operation mode in advance, and sets one or a plurality of units in the sub interrupt controller, based on the mode instruction information and the plurality of units stored in association with the low-power consumption operation mode.