Printing – Selective or progressive – Bed and platen machines
Patent
1974-01-18
1976-04-27
Grieb, Wm. H.
Printing
Selective or progressive
Bed and platen machines
B41D 708
Patent
active
039526488
ABSTRACT:
A high speed printer receiving line-by-line character data from a computer employs a number of sets of hammers and a belt carrying a number of sets of characters. The belt travels continuously past the hammers and the spacing between characters is greater than the spacing between hammers so that, during one cycle in which all characters of a set have passed successively into alignment with a given hammer, there are a number of scan cycles in which a number of different hammers (one from each set) are aligned with characters a given number of successive subscan times, where the aforementioned number of scan cycles is equal to the number of characters in a set. Thus, the designation of a particular scan cycle for any given hammer uniquely defines the character which will be struck by that hammer during that subscan uniquely related to that hammer. The incoming information which is in sequence according to a print line is converted into a format according to such scan cycles so as to enable a particular hammer to strike only during that scan cycle which will cause the proper character to be struck. In converting the data, a reference memory is employed which is required to contain only that data relating to the set of characters.
REFERENCES:
patent: 3289576 (1966-12-01), Bloom, Jr. et al
patent: 3303775 (1967-02-01), Giannuzzi
patent: 3443514 (1969-05-01), Schwartz
patent: 3602138 (1971-08-01), Barcomb
patent: 3680480 (1972-08-01), Berglund
patent: 3681760 (1972-08-01), Salava
patent: 3795186 (1974-03-01), Curtiss et al.
patent: 3865029 (1975-02-01), Lytle
Couture Serge Andre Emmanuel
Sery Jacques
Compagnie Honeywell Bull (Societe Anonyme)
Grieb Wm. H.
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