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.

Date of Patent:
May. 26, 2020

Filed:

Jan. 23, 2019
Applicant:

Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, Tokyo, JP;

Inventor:

Koji Takahashi, Sumida Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01); G03G 15/01 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2039 (2013.01); G03G 15/01 (2013.01);
Abstract

According to one embodiment, an image forming apparatus includes a fixing roller, a heater, a heater controller, and a roller controller. The fixing roller conveys a sheet by rotation and fixes a recording material formed on the sheet to the sheet. The heater heats the fixing roller. The heater controller controls a temperature of the heater. The roller controller controls a rotation speed of the fixing roller. When the roller controller satisfies a predetermined condition indicating that a fixing part temperature indicating a temperature of the fixing roller is not suitable for operation, the roller controller increases a rotation speed to be higher than a rotation speed of a case in which the predetermined condition is not satisfied.


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