Printing hammer driving system

Details Printing hammer driving system Printing hammer driving system

1977-10-25

1979-05-08

Coven, Edward M.

Printing

Selective or progressive

Bed and platen machines

101 9329, B41J 132

Patent

active

041529839

ABSTRACT:
In a printing hammer driving system, there is provided a character-bearing member having a plurality of identical characters disposed in mutually offset relationship in each of lines. The characters in each of the lines differ from those in any other line. A group of hammers is disposed in opposed relationship with the character-bearing member for impacting the characters thereon. A group of driving circuits is connected to the group of hammers for driving respective ones of the hammers. A group of gates is connected to the inputs of the group of driving circuits for selecting the hammers. Each of the gates has at least two input terminals. Memory means are provided which each have the output thereof connected to one of the input terminals of each gate for storing print digit information. Selector means are provided which each are connected to the other input terminal of each gate for selecting one or more of the gates.

REFERENCES:
patent: RE26240 (1967-07-01), Wasserman
patent: 2776618 (1957-01-01), Hartley
patent: 3088401 (1963-05-01), Shimabukuro
patent: 3322064 (1967-05-01), Sims
patent: 3589282 (1971-06-01), King
patent: 3848527 (1974-11-01), Nihorn
patent: 3855923 (1974-12-01), Foley
patent: 3872789 (1975-03-01), Ambrosil

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