Browse Prior Art Database

Original Publication Date: 1994-Apr-30
Included in the Prior Art Database: 2004-Apr-07

Publishing Venue

Xerox Disclosure Journal


The present disclosure relates generally to a fuser mechanism for an electrophotographic printing machine, and more articularly concerns a thick printing machines. In order to fix or fuse the toner material onto a support member permanently by heat, it is necessary to elevate the temperature of the toner material to a point at which constituents of the toner material coalesce and become tacky. This action causes the toner to flow to some extent onto the fibers or pores of the support members or otherwise upon the surfaces thereof. Generally, roll fusers have a rather small nip contact area and are a speed limiting factor when fusing full color images where a minimum dwell time must be observed. It is desirable therefore to have a belt fuser which can operate at high pressures and have an extended nip so as to increase the fusing speed for multi color images. It is also desirable that such a fuser be externally heated from a single heat source which does not require a large temperature gradient to effectively heat the fuser belt.