Fixing device having heat roller and pressure roller for use in

Details Fixing device having heat roller and pressure roller for use in Fixing device having heat roller and pressure roller for use in

1995-06-15

1996-06-18

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355285, 219216, G03G 1520

Patent

active

055283454

ABSTRACT:
A fixing device having a heat roller and a pressure roller in nipping contact therewith. The heat roller has a sleeve member and a rod-like heater extending through the sleeve member. A casing is provided for housing therein these rollers. The casing includes a lower casing for rotatably supporting the sleeve member and the pressure roller, and an upper casing detachably fixed to the lower casing for covering these rollers. A pair of holder members are fixed to the upper casing for suspending the heater. The upper casing is integrally provided with a sheet peelable guide member at a position adjacent the sleeve member. The guide member separates a curled sheet from the sleeve member. The upper casing is also integrally provided with a heat blocking walls at a position in confrontation with a photosensitive drum. The lower casing is integrally provided with an upstream guide member and a downstream guide member which are positioned upstream and downstream of the pressure roller.

REFERENCES:
patent: 5218411 (1993-06-01), Kosugiyama et al.

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