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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.:

US 12754498 B1

PDFFull Text
Date of Patent:
Oct. 06, 2026

Filed:

Jun. 23, 2025

Image forming apparatus that controls heater of fixing device, according to size of recording sheet

Applicant:

Kyocera Document Solutions Inc., Osaka, JP;

Inventors:

Kenichi Kasama, Osaka, JP;

Ryohei Tokunaga, Osaka, JP;

Takashi Miyake, Osaka, JP;

Akihiro Kondo, Osaka, JP;

Hiroki Kawasaki, Osaka, JP;

Shunsaku Fujii, Osaka, JP;

Yuto Masaoka, Osaka, JP;

Assignee:

KYOCERA Document Solutions Inc., Osaka, JP;

Attorney:

IP Business Solutions, LLC.

Primary Examiner:

Jessica L Eley

Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2039 (2013.01); G03G 15/2017 (2013.01); G03G 15/2064 (2013.01); G03G 2215/2035 (2013.01);
Abstract

A fixing device includes a main heater located at a central portion of a fixing belt in a direction along a rotary shaft, two sub heaters located at respective end portions, and a cooling fan that cools end portions of the heaters. When a recording sheet to undergo a fixing operation is of a size that does not reach a temperature detection position of a temperature sensor, which detects the temperature of the sub heater, a target temperature of the sub heater is set to a higher side, so that the temperature of a sheet passage region is maintained within a temperature range appropriate for the fixing operation.

Find Patent Forward Citations

Kasama, Kenichi. (2026). Image forming apparatus that controls heater of fixing device, according to size of recording sheet (U.S. Patent No. 12754498). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12754498

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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