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:
Jan. 19, 2021
Filed:
May. 27, 2020
Kyocera Document Solutions Inc., Osaka, JP;
Toshimitsu Takeuchi, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
An image forming apparatus includes an image forming unit, a fixing device, a temperature detection device, a driving device, a printed sheet number counting unit, a fixing voltage power supply, and a control unit. The fixing device includes a fixing member constituted of a heated rotary member heated by a heating device and a pressure member contacting the heated rotary member to form a fixing nip. The temperature detection device detects surface temperature of the heated rotary member in a non-passing area. The control unit changes a productivity in two or more steps from a default setting, on the basis of an accumulated number of printed sheets from start of a productivity change mode counted by the printed sheet number counting unit, and the surface temperature of the non-passing area detected by the temperature detection device, and changes control temperature of the fixing member in accordance with the productivity.