Print media weight detection system

Details Print media weight detection system Print media weight detection system

1997-09-12

2000-02-22

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

400 56, G01N 2186

Patent

active

060283181

ABSTRACT:
A device that automatically detects the stiffness of the paper as an indicator of paper weight and thickness. The detection system of the invention includes a moveable media guide and a sensor responsive to movement of the guide. It is desirable that the media guide have a curved media contact surface to resist the paper as it is pushed along the guide. A biasing element operatively coupled to the guide may be used to regulate the resistance of the guide to the advancing paper. Stiff heavier weight paper causes the guide to move as the paper is pushed along the contact surface of the guide. Less stiff lighter weight paper will not cause the guide to move, or at least not as much as the stiff heavier weight paper. A sensor responds to the movement of the guide to detect the stiffness and, therefore, the weight of the paper.

REFERENCES:
patent: 3171034 (1965-02-01), Tomasulo et al.
patent: 3968364 (1976-07-01), Miller
patent: 4060734 (1977-11-01), Tilley et al.
patent: 4866984 (1989-09-01), Houghton
patent: 4937460 (1990-06-01), Duncan et al.
patent: 5138178 (1992-08-01), Wong et al.
patent: 5204537 (1993-04-01), Bennet et al.
U.S. application No. 08/806,994; Feb. 26, 1997 (Pending Application); "Sheet Media Weight Detector And Method" (as originally filed).

Affiliated with

Also associated with

Rating

Print media weight detection system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Print media weight detection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Print media weight detection system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-522490