Printing – Selective or progressive – Bed and platen machines
Patent
1987-04-22
1988-04-12
Sewell, Paul T.
Printing
Selective or progressive
Bed and platen machines
101 9314, 101111, B41J 312
Patent
active
047366796
ABSTRACT:
Printing apparatus which provides full font character and dot matrix printing with an endless band having full font printing elements and dot printing elements spaced successively on the band. In order to provide the proper spacing of the characters, either formed with the full font elements or the dot matrix elements and to provide for graphics printing capabilities, a plurality of hammers are movably mounted on a shuttle which reciprocates along the print line. A plurality of fixed armatures selectively impact the hammers as they are moved. Predetermined, incremental hammer movements provide standard, compressed or expanded horizontal character and/or dot spacing.
REFERENCES:
patent: 3774531 (1973-11-01), Hansen
patent: 3791292 (1974-02-01), Soderstrom
patent: 4075945 (1978-02-01), Bienholz
Hubbard L. James
Hubbard Virginia M.
Lukacher Martin
Sewell Paul T.
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