Transversal perforating apparatus and respective perforating met

Details Transversal perforating apparatus and respective perforating met Transversal perforating apparatus and respective perforating met

1994-10-03

1996-06-18

Bennett, Christopher A.

Printing

Rolling contact machines

Rotary

400621, 83324, B41F 1356

Patent

active

055267440

ABSTRACT:
Transversal perforating apparatus of paper for printers fed by a continuous strip of paper (1) without lateral dragging holes. The apparatus (12) includes a perforator roller (13) holding a blade (16) substantially transverse to and engaging a pressure roller (14) rotating in synchronism with the perforator roller (13). The speed of the perforator roller (13) is varied and the position of the blade (16) is measured with respect to the paper. Encoders communicate with a central processor. Transverse perforations are made coincident with the beginning and the end of each page printed by printing heads (2,3). Intervals between two successive perforations can be varied during the course of printing.

REFERENCES:
patent: 4366753 (1983-01-01), Glanz et al.
patent: 4538515 (1985-09-01), Tymkewicz et al.
patent: 4590859 (1986-05-01), Pou et al.
patent: 4603630 (1986-08-01), Llaneza
patent: 4706566 (1987-11-01), Kishine et al.
patent: 5000812 (1991-03-01), Murphy
patent: 5119725 (1992-06-01), Okamura
Patent Abstracts of Japan, vol. 9, No. 94 (M-374)(1817), 24 Apr. 1985 & JP-A-59 218 876 (Shinko Denki KK).
Patent Abstracts of Japan, vol. 14, No. 527 (M-1050), 20 Nov. 1990 & JP-A-02 223 462 (Oki Electric Ind. Co. Ltd.), 5 Sep. 1990.
Patent Abstracts of Japan, vol. 6, No. 204 (M-164), 15 Oct. 1982 & JP-A-57 110 480 (Fujitsu KK), 9 Jul. 1982.

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