Automatic sheet decurler apparatus

Details Automatic sheet decurler apparatus Automatic sheet decurler apparatus

1993-06-25

1995-02-21

Grimley, A. T.

Photocopying

Contact printing

Light boxes

162270, 162271, 271188, 271209, 271272, 355282, 355285, 355308, G03G 2100, G03G 1500

Patent

active

053921062

ABSTRACT:
A decurling apparatus and method to decurl a substrate in a xerography machine. The invention combines a decurling apparatus having a penetration roller with a small diameter penetrating into a belt. The penetration roller is adjustable and as it pushes into the belt, more decurling of a copy sheet will occur. A controller determines the amount of decurling that is necessary and sends an electrical signal to a driver which operates the penetration roller. The penetration roller is either pressed into or away from the decurling belt. A cam shaft is turned by a motor to cause the cams to move the penetration roller. Although the controller stores the information on the cam location, a home sensor is required to indicate home position. The cam shaft is returned to home position before adjusting the penetration roller to a new level of decurling.

REFERENCES:
patent: 4475896 (1984-10-01), Bains
patent: 4591259 (1986-05-01), Kuo et al.
patent: 5066984 (1991-11-01), Coombs
patent: 5144385 (1992-09-01), Tani
patent: 5153662 (1992-10-01), Foos
patent: 5183454 (1993-02-01), Kurosawa et al.
patent: 5201514 (1993-04-01), Rebres
patent: 5202737 (1993-04-01), Hollar
patent: 5287157 (1994-02-01), Miyazato et al.

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