05191381 is referenced by 29 patents and cites 14 patents.

A heating device, which can be used in the fixing unit of an image forming apparatus, such as an electrophotographic copying or printing machine, for fixing a toner image on a sheet of image transferring medium, includes a ceramic heat roller whose body is formed of a resistor material having positive temperature coefficient of resistance (PTC), capable of self-heating and self-regulating the temperature.

Title
PTC ceramic heat roller for fixing toner image
Application Number
7/743675
Publication Number
5191381
Application Date
August 12, 1991
Publication Date
March 2, 1993
Inventor
Jie Yuan
524 Linden Rd., State College, 16801
PA, US
IPC
G03G 15/20
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