Roll fuser apparatus and system therefor

Details Roll fuser apparatus and system therefor Roll fuser apparatus and system therefor

1978-09-27

1980-04-08

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

432 60, 432228, 219388, H05B 100, G03G 1520

Patent

active

041974450

ABSTRACT:
A heat and pressure roll fusing apparatus for fixing toner images to copy substrates, the toner comprising thermoplastic resin. The apparatus includes a heated fuser roll cooperating with a backup or pressure roll to form a nip through which the copy substrates pass at relatively high (i.e. 12-20 in./sec) speeds with the images contacting the heated roll. The heated fuser roll is characterized by a relatively thick (i.e. 10 mils or greater) outer layer or surface which by way of example is fabricated from a highly insulative material such as silicone rubber or Viton to which a low viscosity polymeric release fluid is applied. Elevating the temperature of the heated roll during a standby or warm-up is accomplished by an internally disposed heating element and the operating temperature thereof during the run mode of operation is effected by an external heater.

REFERENCES:
patent: 3811821 (1974-05-01), Ariyama
patent: 3813516 (1974-05-01), Kudsi et al.
patent: 3849628 (1974-11-01), Abowitz et al.
patent: 3874843 (1975-04-01), Fujimoto
patent: 4000957 (1977-01-01), Ruhland
patent: 4079227 (1978-03-01), Takiguchi

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