Drum column printer

Details Drum column printer Drum column printer

1975-11-24

1976-08-31

Burr, Edgar S.

Printing

Selective or progressive

Bed and platen machines

101 9318, B41J 912

Patent

active

039773191

ABSTRACT:
An impact printer including a type bearing drum mounted for rotation about the axis of the drum and including a plurality of hammers mounted with the impact faces thereof opposed to the drum and aligned in a direction extending parallel to the drum axis. Raised characters formed on the drum surface are oriented so that a line extending from top to bottom of the character is parallel to the drum axis. As a consequence, as the drum rotates through one revolution, the hammers can be selectively impacted against the drum to print a complete column of text on a paper web therebetween. Since the characters move past the hammers along a horizontal line of text, excellent vertical registration of the characters in a line is assured.

REFERENCES:
patent: 3077158 (1963-02-01), Hoffmann
patent: 3136243 (1964-06-01), Christoff
patent: 3168182 (1965-02-01), Bernard et al.
patent: 3517165 (1970-06-01), Peyton
patent: 3605978 (1971-09-01), Kawano
patent: 3633497 (1972-01-01), Hartley
patent: 3675753 (1972-07-01), Perucca
patent: 3890893 (1975-06-01), Kodis

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