Matrix character modification information unique to a given font

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact

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Details

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.

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