Low mass heat and pressure fuser

Details Low mass heat and pressure fuser Low mass heat and pressure fuser

1984-10-31

1986-01-21

Prescott, A. C.

Photocopying

Including fiber optics

355 14FU, 219216, G03G 1520

Patent

active

045654395

ABSTRACT:
Heat and pressure fusing apparatus for fixing toner images. The fusing apparatus is characterized by the separation of the heat and pressure functions such that the heat and pressure are effected at different locations on a thin flexible belt forming the toner contacting surface. A pressure roll cooperates with a non-rotating mandrel to form a nip through which the belt and copy substrate pass simultaneously. The belt is heated such that by the time it passes through the nip its temperature together with the applied pressure is sufficient for fusing the toner images passing therethrough. The non-rotating mandrel is adapted to having its axis skewed relative to the axis of the pressure roll. A pair of edge sensors are provided for activating as mandrel skewing mechanism. Skewing of the mandrel by such mechanism effects proper belt tracking.

REFERENCES:
patent: 4095886 (1978-06-01), Koeleman et al.
patent: 4279496 (1981-07-01), Silverberg
patent: 4324482 (1982-04-01), Szlucha
patent: 4348102 (1982-09-01), Sessink
patent: 4352551 (1982-10-01), Iwao
patent: 4372246 (1983-02-01), Azar et al.
patent: 4378152 (1983-03-01), Edwards et al.
patent: 4393804 (1983-07-01), Nygard et al.
patent: 4407580 (1983-10-01), Hashimoto et al.
patent: 4497570 (1985-02-01), Bolte et al.

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