High speed printer having segmented drum

Details High speed printer having segmented drum High speed printer having segmented drum

1977-03-18

1978-04-04

Sewell, Paul T.

Printing

Selective or progressive

Bed and platen machines

101 9329, B41J 306

Patent

active

040820351

ABSTRACT:
A printing device for printing characters onto a record medium comprising: a printing station; a carrier provided with a plurality of character segments, the character segments being adapted to collectively define an entire font of characters; a moving mechanism for intermittently moving the carrier to thereby move a particular one of the character segments through the printing station during each such intermittent movement of the carrier; a record feeding mechanism for intermittently feeding the record medium through a predetermined amount through the printing station; a hammer for striking the record medium against the carrier; and a control device for controlling the moving mechanism and the record feeding mechanism in a predetermined sequence of steps; the moving mechanism moving the carrier under control of the control device during particular steps in the predetermined sequence of steps; the record feeding mechanism feeding the record medium through the predetermined amount under control of the control device during certain steps in the predetermined sequence of steps; the carrier and the record medium being independently moved during specified steps and being simultaneously moved during other specified steps in the predetermined sequence of steps; the control device selectively actuating the hammer to thereby print the particular one of the character segments located at the printing station onto said record medium; whereby a character is formed by selective actuation of the hammer after controlled movement of the carrier and the record medium.

REFERENCES:
patent: 2658106 (1953-11-01), Hell
patent: 3279363 (1966-10-01), Christoff et al.
patent: 3324240 (1967-06-01), Kleinschmidt et al.
patent: 3750794 (1973-08-01), Griggs
patent: 3804008 (1974-04-01), Hoyer
patent: 3810195 (1974-05-01), Kilroy et al.
Farmer, "Segment Printer" IBM Tech. Disc. Bull, vol. 14, No. 3, Aug. 1971.

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