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. 04, 2023
Filed:
Jun. 29, 2022
Hiromasa Takagi, Tokyo, JP;
Seiji Saitoh, Kanagawa, JP;
Jun Okamoto, Tokyo, JP;
Tamotsu Ikeda, Tokyo, JP;
Yoshikuni Sasaki, Kanagawa, JP;
Takahiro Imada, Kanagawa, JP;
Hiromasa Takagi, Tokyo, JP;
Seiji Saitoh, Kanagawa, JP;
Jun Okamoto, Tokyo, JP;
Tamotsu Ikeda, Tokyo, JP;
Yoshikuni Sasaki, Kanagawa, JP;
Takahiro Imada, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image forming apparatus includes two rotators, a driver driving the rotators, a heating device to heat the rotator, a blower blowing air to the heating device, a temperature detector, a recording medium detector, a cover, an open-close detector, and circuitry. The circuitry detects an abnormal state and stops heat generation, determines whether the cover is closed using the open-close detector, controls the blower to blow air when the cover is closed, determines whether the recording medium is in the nip using the recording medium detector, controls the driver to rotate the two rotators when the cover is closed and no recording medium is in the nip, determines whether a temperature detected is equal to or lower than a threshold value before the cover is opened, and controls the blower to decrease an air volume when the temperature detected is equal to or lower than the threshold value.