Apparatus for both printing characters and plotting graphs

Details Apparatus for both printing characters and plotting graphs Apparatus for both printing characters and plotting graphs

1983-04-28

1985-07-09

Sewell, Paul T.

Typewriting machines

Including plural, independently supported key-boards,...

101 9312, 400 17, 400 18, 4001442, B41J 358

Patent

active

045279187

ABSTRACT:
A printing apparatus having a first printing unit provided with a plurality of type elements and adapted to print characters and symbols and a second printing unit capable of plotting optionally, graphs and figures, and capable of attaining both high quality printing of characters and symbols and high-quality plotting of graphs and figures, and with good speed.

REFERENCES:
patent: 3858509 (1975-01-01), Grundherr
patent: 3874492 (1975-04-01), Hurst
patent: 4259025 (1981-03-01), Jamieson
patent: 4441109 (1984-04-01), Fujisawa
patent: 4459049 (1984-07-01), Howell et al.

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