Patent ID: 6697597
Filing Date: 2004-02-24
Classification: G03G

Abstract:
A fixing device, comprising:a heating element that contains a first region and a second region next to the first region, the heating element contacting a recording medium; a first heat generating element that heats the heating element, the first heat generating element contains a first heat region corresponding to the first region and a second heat region corresponding to the second region, a first heat density A1 of the first heat region of the first heat generating element is higher than a second heat density A2 of the second heat region of the first heat generating element; and a second heat generating element that heats the heating element, the second heat generating element contains a first heat region corresponding to the first region and a second heat region corresponding to the second region, a first heat density B1 of the first heat region of the second heat generating element is lower than a second heat density B2 of the second heat region of the second heat generating element, wherein the heat densities of A1, A2, B1 and B2 satisfy a numerical formula of (A1+B1)A2+B2).