Image fixing device and electrophotographic apparatus incorporat

Details Image fixing device and electrophotographic apparatus incorporat Image fixing device and electrophotographic apparatus incorporat

1991-07-29

1994-09-06

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355285, G03G 1520, G03G 2100

Patent

active

053453018

ABSTRACT:
A electrophotographic image fixing device fixes a toner image on a substrate. The substrate is passed between two pressing rollers disposed in opposition to each other to fix toner images on the substrate. The pressing rollers includes a surface constructed from an elastic material layer such that the elastic material layer can be deformed approximately 0.5-1.5% in terms of thickness. The pressing force against the toner applied side of the substrate is adjusted to 0.3-1 kg/cm.sup.2. As a result, an image with excellent toner fixing strength can be formed on a substrate such as an envelope without wrinkling the substrate during the fixing operation.

REFERENCES:
patent: 3874894 (1975-04-01), Pedersen
patent: 4149797 (1979-04-01), Imperial
patent: 4814819 (1989-03-01), Torino et al.
patent: 4949132 (1990-08-01), Chimoto
patent: 4967237 (1990-10-01), Sasaki et al.
patent: 5026276 (1991-06-01), Hirabayashi et al.

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