Patent ID: 6835918
Filing Date: 2004-12-28
Classification: G03G,H05B,Y10T

Abstract:
A heating device comprising:first and second heating members arranged with a transport path therebetween in such a manner as to be pressed against each other, a sheet material to be heated traveling on the transport path; a first heat supplier for supplying heat to the first heating member; a second heat supplier for supplying heat to the second heating member; detectors for detecting temperatures of the first and second heating members; and a control device for controlling the operation of the first and second heat suppliers in accordance with detection results by the detectors such that the temperature of the second heating member is higher than the temperature of the first heating member within a range where the following relationship is satisfied: 02âˆ’Q1)/(Q2+Q1)<0.6 where Q1 is a heat quantity transferred from the first heating member to said sheet material and Q2 is a heat quantity transferred from the second heating element to said sheet material.