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 7881630 B1

Date of Patent:

Feb. 01, 2011

Filed:

Nov. 22, 2006

Temperature control device, temperature control method, fixing device, image forming apparatus, temperature control program, computer-readable recording medium, and computer data signal

Applicants:

Tetsunori Mitsuoka, Tondabayashi, JP;

Atsushi Ide, Nara, JP;

Inventors:

Tetsunori Mitsuoka, Tondabayashi, JP;

Atsushi Ide, Nara, JP;

Assignee:

Sharp Kabushiki Kaisha, Osaka, JP;

Attorney:

Nixon & Vanderhye, PC

Primary Examiner:

David M Gray

Assistant Examiner:

Andrew V Do

Int. Cl.

CPC ...

G03G 15/20 (2006.01);

U.S. Cl.

CPC ...

Abstract

The present invention carries out temperature detection and temperature control accurately in a temperature control device using a noncontact-type temperature detecting section. The temperature control device obtains the surface temperature of a fixing roller by using a temperature correspondence table in which correspondences between output voltage values of a main NTC thermistor which detects heat generated by infrared radiation from the fixing roller and the surface temperatures of the fixing roller are shown for respective output voltage values of a compensation NTC thermistor. Here, the output voltage values of the main NTC thermistor and the output voltage values of the compensation NTC thermistor are set in the temperature correspondence table so that an interval between adjacent values of the compensation temperatures corresponding to the output voltage values of the compensation NTC thermistor is smaller than an interval between adjacent values of the surface temperatures of the fixing roller which temperatures correspond to the output values of the main NTC thermistor.

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Mitsuoka, Tetsunori. (2011). Temperature control device, temperature control method, fixing device, image forming apparatus, temperature control program, computer-readable recording medium, and computer data signal (U.S. Patent No. 7881630). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7881630

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