Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1988-04-25
1990-09-04
Wiecking, David A.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
101 9304, 400555, B41J 310
Patent
active
049539957
ABSTRACT:
A method and apparatus for printing multiple lines of characters simultaneously on a dot matrix printer and making available to the user a choice of alternate line spacings without physical or mechanical alteration of the printhead. The printhead includes an uninterrupted array of print elements having a total height greater than the combined total height of the multiple lines that are simultaneously printed plus the combined height of the intervening line spaces. By directing columnar character data to selected sets of print elements, the printhead can produce characters of a constant height with selected variations in interline spacing.
REFERENCES:
patent: 3803628 (1974-04-01), Van Brimer et al.
patent: 4033444 (1977-07-01), Beery
patent: 4159882 (1979-01-01), Sanders et al.
patent: 4408907 (1983-10-01), Bernardis
patent: 4473311 (1984-09-01), Sakaida
patent: 4580145 (1986-04-01), Natsume
patent: 4601593 (1986-07-01), Collina et al.
patent: 4721401 (1988-01-01), Malcolm
patent: 4871270 (1984-10-01), Werbach
IBM Technical Disclosure Bulletin, vol. 25, No. 1, Jun. 1982, p. 275-IBM Technical Disclosure Bulletin (Jun. 1982) Discloses a Two Line Dot Matrix Printer with Alternately Operable Print Heads, 400-82.
Dubner Joseph
LeFriec Fred
Peavey Brian
Sims Louis
Output Technology Corporation
Wiecking David A.
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