High efficiency fuser roll assembly for xerographic material

Details High efficiency fuser roll assembly for xerographic material High efficiency fuser roll assembly for xerographic material

1977-03-21

1978-11-28

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219469, 219471, 432 60, 432228, H05B 100, G03G 1520

Patent

active

041277643

ABSTRACT:
A high efficiency fuser and pressure roll system for fixing xerographic toner particles to a carrier medium such as paper has an axially located cartridge heater element integrally coupled to a plurality of low thermal mass, high thermal conductivity fins for efficiently transferring heat by direct thermal conduction to and supporting the roll surface. The cartridge heater and fuser roll structure are thermally isolated from the shaft mechanism supporting the fuser roll itself. Quick and efficient heating of the roll surface is afforded, radiative transfer of heat being avoided. Further, there is afforded diminished heat loss through undesired heat conduction into the shaft and associated parts of the copier.

REFERENCES:
patent: 2875985 (1959-03-01), Hold
patent: 2958742 (1960-11-01), Palmer
patent: 3291460 (1966-12-01), Aser et al.
patent: 3471683 (1969-10-01), Bogue

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