Roll fuser

Details Roll fuser Roll fuser

1975-11-10

1977-01-25

Rimrodt, Louis K.

Coating apparatus

With heat exchange, drying, or non-coating gas or vapor...

With solid heat exchange means contacting work

432 60, B05C 1100

Patent

active

040045498

ABSTRACT:
A roll fusing apparatus comprising a heated roll structure and a resilient backup roll cooperating with the heated roll structure to form a nip through which toner images as with the toner images contacting the heated fuser roll structure. The heated fuser roll structure comprises a rigid core and an elastomeric outer layer, the outer surface of the rigid core and the inner surface of the elastomeric layer having non-uniform cross sections which are complementary one to the other to thereby provide alternately thick and thin segments or portions of elastomeric material wherein the thick portions provide for a greater capacity of release agent material than the thin portions while the thin portions provide a minimal barrier to heat transfer from within the heated fuser structure to the external surface of the elastomeric layer.

REFERENCES:
patent: 2217552 (1940-10-01), Horton
patent: 3718116 (1973-02-01), Thettu
patent: 3883291 (1975-05-01), Cloutier et al.

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