TEMPERATURE RECORDER AND IMAGE FORMATION DEVICE Russian patent published in 2018 - IPC G03G15/20 G01K13/08 G03G21/20 H05B3/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of thermometry and can be used to record the heating roller temperature, which is heated by multiple heaters and with which a pressure roller can be in the pressure contact. Temperature detection device includes first and second temperature detecting units configured to detect the first and second temperatures of the first roller, in the first and second axial positions, respectively, heated by the central heating unit and the heating unit of the end portion; third and fourth temperature detecting units configured to record the third and fourth temperatures of the second roller, respectively, which may be in the pressure contact with the first roller, in the first and second positions; and a control unit configured to control the heating units. Control unit determines the state of at least one of the first, second, third and fourth temperature detection units based on a comparison between the first and third rates of the first and third temperatures rise, respectively, or the comparison between the second and fourth second and fourth rates temperature rise, respectively.

EFFECT: technical result is increase in the efficiency of controlling the heaters in the heating rollers.

14 cl, 9 dwg