Patent ID: 6144833
Filing Date: 2000-11-07
Classification: G03G

Abstract:
A fixing device comprising:first and second rollers respectively formed of a metallic cylindrical body provided with an elastic member on an outer periphery thereof, the rollers being abutted against each other so that the elastic members contact each other;a heater for heating at least one of the first and second rollers; anda driver for rotating at least one of the first and second rollers so that a transfer sheet passes through a contact portion of the first and second rollers,wherein a certain amount of filler is added to at least one of the elastic members of the first and second rollers, andwherein thickness, cross-link density and filler amount of the elastic members of the first and second rollers are so arranged so that roller hardness of the first roller is smaller than that of the second roller, and the cross-link density of the elastic member of the first roller is lower than that of the elastic member of the second roller.