Three roller design eliminates free span belt heating of integra

Details Three roller design eliminates free span belt heating of integra Three roller design eliminates free span belt heating of integra

1993-12-16

1995-04-25

Grimley, A. T.

Photocopying

Contact printing

Light boxes

219216, G03G 1520

Patent

active

054103940

ABSTRACT:
Three fuser rollers cooperate with a pressure roller to form an extended fusing zone through which a substrate carrying toner images passes with the toner images contacting fusing belt. Electrical power is applied to the three fuser rolls in such a manner that only the portions of the belt in the fusing zone are heated. Thus, the energy is concentrated only in the part of the fusing belt where it is needed for fusing the toner images on the final substrate. Thus, the free extent of the belt or in other words the portion of the belt outside of the fusing zone remains unheated.

REFERENCES:
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patent: 5115279 (1992-05-01), Nishikawa et al.
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patent: 5182606 (1993-01-01), Yamamoto
patent: 5250998 (1993-10-01), Ueda et al.
patent: 5262834 (1993-11-01), Kusaka et al.

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