Photocopying – Including fiber optics
Patent
1980-05-19
1982-06-29
Braun, Fred L.
Photocopying
Including fiber optics
271311, 271DIG2, 355 3SH, 432 60, G03G 1500
Patent
active
043369928
ABSTRACT:
A heat and pressure roll fusing apparatus for fixing toner images to copy substrates, the toner being made of a thermoplastic resin. The apparatus includes an internally heated fuser roll cooperating with a back-up or pressure roll to form a nip through which the copy substrates pass with the images contacting the heated roll. The heated fuser roll is characterized by an outer layer or surface which by way of example is fabricated from silicone rubber. Sheet removal or supporting member in the form of flexible finger structures are provided. The fingers contact the surface of the heated fuser roll and therefore are constructed so as to preclude damage to the soft fuser roll surface should they tend to gouge it. In operation the fingers are sufficiently flexible so that when a misstrip occurs they can be deflected out of contact with the fuser roll and partially rotated thereby. Each finger structure may have either a single finger or two fingers. The fingers are mounted for 360.degree. of rotation partially by the heated fuser roll and, in part, manually.
REFERENCES:
patent: 746124 (1903-12-01), Mosher
patent: 3649115 (1972-03-01), Hodges
patent: 3844252 (1974-10-01), Thettu
Eddy Clifford O.
Szlucha Thomas F.
Braun Fred L.
Xerox Corporation
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