Fuser roller having surface-temperature reducing member

Details Fuser roller having surface-temperature reducing member Fuser roller having surface-temperature reducing member

1992-02-28

1992-10-06

Grimley, A. T.

Electric heating

Heating devices

Combined with diverse-type art device

219244, 355 30, 355285, H05B 100

Patent

active

051534118

ABSTRACT:
A heat and pressure roller-type fusing apparatus for fusing toner images onto a substrate includes a fuser roller which has a hollow metallic core and at least an elastomeric outer layer that is formed over the core. A heat source is mounted within the metallic core for heating such core and the elastomeric layer to a desirable fusing temperature. The fuser roller includes a first length portion which is substantially equal to the cross-track dimension of the substrate for contacting the substrate, and a second length portion which adjoins the first length portion and an end of the fuser roller. The fuser roller also includes a heat absorbing and dissipating member that is mounted inside the hollow core for inwardly absorbing and dissipating heat from the core within the second length portion of the fuser roller, thereby reducing the heating and temperature of the surface of such second length portion of the fuser roller.

REFERENCES:
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patent: 4888464 (1989-12-01), Shibata et al.
patent: 4933724 (1990-06-01), Sugimoto et al.
patent: 5075732 (1991-12-01), Menjo
patent: 5099288 (1992-03-01), Britto et al.

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