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:
Feb. 18, 2020
Filed:
May. 24, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Yuya Kojima, Kamakura, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a main body of an apparatus, a door, an image forming unit, a sensor that outputs a predetermined signal when the door is opened, and a control unit that determines that the door is open if the predetermined signal is output from the sensor for a threshold time. When the door is opened, the image forming unit changes to a state where image formation is not executable. The control unit sets a first time as the threshold time, in a period in which the image forming unit contributes to image formation on a recording material. The control unit sets a second time longer than the first time as the threshold time, in a period in which the image forming unit does not contribute to image formation on a recording material or a period in which no image is formed on a recording material.