Fixing device for electrophotography

Details Fixing device for electrophotography Fixing device for electrophotography

1989-04-24

1990-06-12

Moses, R. L.

Photocopying

Contact printing

Light boxes

355285, 355290, 219216, G03G 1500

Patent

active

049337246

ABSTRACT:
A fixing device for electrophotography has a heating roller and a compression roller compressed against each other. Copy paper with toner image on its surface is passed inbetween to have the image fixed. The heating roller is hollow and contains a heater inside. To control the heat output of the heater, a temperature detector is positioned on the surface of the heating roller near the edge of the paper passing between the rollers where no toner image is formed. The wall thickness of the heating roller is reduced to about 0.8-1.5 mm for improved heat distribution characteristics.

REFERENCES:
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patent: 3690176 (1972-09-01), Connolly et al.
patent: 3968343 (1976-07-01), Guran
patent: 4309591 (1982-01-01), Kanoto et al.
patent: 4329565 (1982-05-01), Namiki
patent: 4348579 (1982-09-01), Namba
patent: 4514486 (1985-04-01), Shirose et al.
patent: 4572648 (1986-02-01), Toriumi et al.
patent: 4588281 (1986-05-01), Elter
patent: 4627813 (1986-12-01), Sasaki

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