Sheet curl control apparatus

Details Sheet curl control apparatus Sheet curl control apparatus

1992-11-02

1993-12-14

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

162271, 250559, 271272, G03G 1500

Patent

active

052707784

ABSTRACT:
The invention relates to a sheet curl control apparatus including a decurler (350) for reducing the curl in sheet material passing therethrough and adjusting means coupled to the decurler (350) for adjusting the decurling action of the decurler (350). Sensing means (406) in the form of an infra-red emitter (408) and two infra-red detectors (410 and 412) are employed for sensing the extent of any residual curl left in the sheet material after it has passed through the decurler (350), and for feeding a signal indicative of the residual curl to control means, conveniently including a stepper motor, for automatically adjusting the adjusting means, for example a rack and pinion arrangement, thereby to alter the decurling action of the decurler (350) in a predetermined manner. The sheet curl control apparatus is described in relation to its use in a copier for duplex copying.

REFERENCES:
patent: 4627718 (1986-12-01), Wyer

Affiliated with

Also associated with

Rating

Sheet curl control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sheet curl control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet curl control apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1709767