Heating apparatus, heating apparatus control method and noncontact thermal sensing device

A fixing apparatus according to one aspect of the present invention includes a non-contact temperature detecting element allocated in non-contact with a heat roller, the sensing element detecting a temperature of the heat roller. The non-contact temperature sensing section includes a thermopile P wh...

Full description

Saved in:
Bibliographic Details
Main Authors Sone, Toshihiro, Takagi, Osamu, Kinouchi, Satoshi, Tsueda, Yoshinori
Format Patent
LanguageEnglish
Published 24.07.2007
Online AccessGet full text

Cover

More Information
Summary:A fixing apparatus according to one aspect of the present invention includes a non-contact temperature detecting element allocated in non-contact with a heat roller, the sensing element detecting a temperature of the heat roller. The non-contact temperature sensing section includes a thermopile P which detects a target temperature Pt of a heat roller , a temperature element CPU which estimates an ambient temperature at the periphery of the thermopile P and computes an estimated ambient temperature SQt, and a thermister Q which detects an ambient temperature Qt at the periphery of the thermopile and outputs the ambient temperature Qt at an output voltage of a predetermined rate with respect to a total output voltage value corresponding to the estimated ambient temperature SQt.