Efficient heating of intermediate transfuse member

摘要

Efficient and uniform heating of a thick transfuse member, wherein the transfuse member is constructed in the form of a transfuse belt that is subject to heating at both front and rear surfaces. An elongated cavity is defined by a portion of the path of the transfuse belt about a plurality of guide rollers. Front surface heating is accomplished by use of a heated roller and rear surface heating is accomplished by use of a heat source situated within the cavity. The majority of the cavity is enclosed by the transfuse member and the guide rollers. Substantially all of the output of the heat source is efficiently transferred to the transfuse member and little or none of the heat produced by the heat source is lost to other components or structures.