Automatic media size detector

Details Automatic media size detector Automatic media size detector

1995-05-19

1996-01-16

Eickholt, Eugene H.

Printing

Rolling contact machines

Rotary

200 6161, 200 6158R, 364560, 4007081, 27126501, 355311, B41F 1324

Patent

active

054838894

ABSTRACT:
The present invention is an apparatus for conveying the size of a media to a printing system. The apparatus is constructed from a tray that has several receiving positions, one position for each size of media. A plurality of conductive strips are attached to the top of the tray. Additionally, the conductive strips are arranged to be in contact with the printing system when the tray is inserted in the printing system. An insulating label is placed over the conductive strips. The insulating label has a unique pattern of holes for each of the receiving positions in the tray. Finally there is a back-stop attached to the tray in one of the receiving positions. The back-stop attaches over the label and has connections on the bottom of the back-stop arranged to make electrical contact through the unique pattern of holes with the conductive strips. Because the back-stop rests against the media, the printing system can read the position of the back-stop by reading the unique code created by the electrical connection between the back-stop and the conductive strips.

REFERENCES:
patent: 3310304 (1967-03-01), Folas et al.
patent: 3569642 (1971-03-01), Grover
patent: 4942814 (1990-07-01), Sugiyama
patent: 5107400 (1992-04-01), Kobayashi
patent: 5208902 (1993-05-01), Kumon
patent: 5436418 (1995-07-01), Tamehira

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