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US 6,445,902 B1Granted
Simplified fusing system
AssigneeHewlett-Packard Company
InventorsB. Mark Hirst, Mark Wibbels, Kenneth E. Heath
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a fusing system for fusing toner to a recording medium. The fusing system comprises a fuser roller that does not have an internal heat source, a pressure roller that does not have an internal heat source, the pressure roller being in contact with the fuser roller, and an external heat source that heats at least one of the fuser and pressure rollers.
Claims12
A fusing system for fusing toner to a recording medium, comprising:
- a fuser roller that does not have an internal heat source;
- a pressure roller that does not have an internal heat source, the pressure roller being in contact with the fuser roller;
- and
- a heating roller external to the fuser and pressure rollers that heats at least one of the fuser and pressure rollers, wherein the heating roller is configured as a heat pipe that comprises coaxial tubes that define an interior space in which a liquid can be contained in a vacuum.
1 more element
A fusing system for fusing toner to a recording medium, comprising:
- a fuser roller that does not have an internal heat source;
- a pressure roller that does not have an internal heat source, the pressure roller being in contact with the fuser roller;
- a heat source external to the fuser and pressure rollers that heats at least one of the fuser and pressure rollers;
- and
- a heat distribution roller that distributes heat across at least one of the fuser and pressure rollers, the heat distribution roller comprising coaxial tubes that define an interior space in which a liquid can be contained in a vacuum.
2 more elements
Dependencies are inferred from the claim text.