Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1989-08-11
1991-02-19
Wiecking, David A.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
400304, B41J 2485
Patent
active
049938533
ABSTRACT:
A matrix printer (1) or other imaging device in a memory (7) stores fonts of character data (11, 11') in defining bit maps for each character of the fonts. The memory also stores shift values for each font which vary with the nature of the font for double strike, emphasize, and combined double strike and emphasize, from which character bit maps are modified before printing by being shifted and overlayed. Improved images for double strike and emphasize are achieved, and the combined double strike and emphasize need not be the overlay of double strike and emphasize.
REFERENCES:
patent: 3896428 (1975-07-01), Williams
patent: 4488827 (1984-12-01), Haganuma
patent: 4586835 (1986-05-01), Alexander
patent: 4646077 (1987-02-01), Culley
patent: 4741634 (1988-05-01), Nozaki
patent: 4780006 (1988-10-01), Hamano
patent: 4827254 (1989-05-01), Nishiyama
IBM Technical Disclosure Bulletin article entitled "Energy Management For An electronic Font Used In A Resistive Ribbon Printer" vol. 30, No. 5, Oct. 1987 at pp. 254-255.
Brown, III John K.
Kolb Joseph P.
Olivers Lynn M.
Robb Mark A.
Troyer Stephen R.
Brady John A.
International Business Machines - Corporation
Kelley Steven S.
Wiecking David A.
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