Patent ID: 6654572
Filing Date: 2003-11-25
Classification: G03G

Abstract:
An image fixing apparatus comprising:a first rotatable member for being heated by a first heater; a first temperature detecting element for detecting a temperature of said first rotatable member; first control means for controlling electric energy supply through said first heater so as to maintain a detected temperature of said first temperature detecting element at a first target temperature; a second rotatable member for being heated by said second heater, said second rotatable member constituting a fixing nip with said first rotatable member; a second temperature detecting element for detecting a temperature of said second rotatable member; a second control means for controlling electric energy supply to said second heater so as to maintain the detected temperature of said second temperature detecting element at a second target temperature; and phase control means for controlling electric energy supply phase so as to avoid overlapping of a phase of an electric power supply to said first heater and a phase of an electric power supply to said second heater, wherein said phase control means decreases an electric energization angle on the basis of a zero-cross timing of a commercial power source.