Patent ID: 7620338
Filing Date: 2009-11-17
Classification: G03G

Abstract:
1. A fixing apparatus that executes a plurality of fixing jobs for recording paper having different widths, the fixing apparatus comprising: a heater that includes a magnetic shunt alloy having a Curie temperature set higher than a fixing temperature in each of the plurality of fixing jobs; an induction heater that generates an alternating field applied to said magnetic shunt alloy and performs electromagnetic-induction heating on said heater, wherein the induction heater surrounds a portion of said heater; and a heating controller that controls said induction heater so as to adjust the fixing temperature in each of the fixing jobs, wherein: said heating controller controls said induction heater so as to perform electromagnetic-induction heating on said heater, during a period from an end of a preceding fixing job to a start of a subsequent fixing job, and said heating controller further controls said induction heater so as to adjust the fixing temperature, based on a first preset temperature during execution of the preceding fixing job, and on a second preset temperature during the period between the fixing jobs.