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US 5,349,424 AGranted
Thick walled heated belt fuser
AssigneeXerox Corporation
InventorsEdul N. Dalal, Robert M. Jacobs
Life of this patent
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AssigneeXerox Corporation
InventorsEdul N. Dalal, Robert M. Jacobs
Estimating the term…
A heated thick walled belt fuser for an electrophotographic printing machine. The belt is rotatably supported between a pair of rolls. One of the spans of the belt is in contact with a heating roll in the form of an aluminum roll with an internal heat source such as a quartz lamp. The belt is able to wrap a relatively large portion of the heating roll to increase the efficiency of the heat transfer. The second span of the belt forms an extended fusing nip with a pressure roll. The extended nip provides a greater dwell time for a sheet in the nip while allowing the fuser to operate at a greater speed. External heating enables a thick profile of the belt, which in turn allows the belt to be reinforced so as to operate at greater fusing pressures without degradation of the image. The thick profile and external heating of the belt also provides a much more robust design than conventional thin walled belt fusing systems.
A heat and pressure fuser apparatus comprising:
A heat and pressure fuser apparatus comprising:
A heat and pressure fuser apparatus comprising:
A heat and pressure fuser apparatus comprising:
A heat and pressure fuser apparatus comprising:
A heat and pressure fuser apparatus comprising:
A heat and pressure fuser apparatus comprising:
An electrophotographic printing machine in which a toner image is heat and pressure fused to a substrate by a fuser member, wherein the improvement comprises:
An electrophotographic printing machine in which a toner image is heat and pressure fused to a substrate by a fuser member, wherein the improvement comprises:
An electrophotographic printing machine in which a toner image is heat and pressure fused to a substrate by a fuser member, wherein the improvement comprises:
An electrophotographic printing machine in which a toner image is heat and pressure fused to a substrate by a fuser member, wherein the improvement comprises:
An electrophotographic printing machine in which a toner image is heat and pressure fused to a substrate by a fuser member, wherein the improvement comprises:
An electrophotographic printing machine in which a toner image is heat and pressure fused to a substrate by a fuser member, wherein the improvement comprises:
Dependencies are inferred from the claim text.