Evacuated printing platen

Details Evacuated printing platen Evacuated printing platen

1980-06-25

1982-04-27

Gilreath, Stanley N.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

With additional means to restrict material movement

226 38, 226195, 242 752, 242 76, B65H 1738, B65H 1744

Patent

active

043266568

ABSTRACT:
Printing platen for positioning a recording medium such as paper which includes an evacuated chamber having a slotted face plate for attracting, holding and guiding the paper. Slots are arranged parallel to each other and the direction of paper travel, and the vacuum attraction causes temporary deformation of the paper so that the slots can effect guiding and tension on the paper during advancement. Effective platen length can be varied to accommodate different paper widths.

REFERENCES:
patent: 2746749 (1956-05-01), Huck
patent: 2778634 (1957-01-01), Gams et al.
patent: 2967674 (1961-01-01), Lawrence et al.
patent: 2994489 (1961-08-01), Hare
patent: 3151796 (1964-10-01), Lipschutz
patent: 3259288 (1966-07-01), Wasserman

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