Typewriting machines – Carriage or carriage-moving or movement-regulating mechanism – For varying carriage feed
Patent
1993-08-17
1997-10-28
Burr, Edgar S.
Typewriting machines
Carriage or carriage-moving or movement-regulating mechanism
For varying carriage feed
400 10, 400279, B41J 1932
Patent
active
056811217
ABSTRACT:
There is provided a printer comprises a first type group having a first font; a second type group having a second font; a first read only memory in which a space traveling amount corresponding to each type of the first type group has been stored; a second read only memory in which a space traveling amount corresponding to each type of the second type group has been stored; and a microprocessor which selects the 1st read only memory when the 1st type group is used, thereby allowing the propotional spacing operation corresponding to each type of the 1st type group to be performed, and which selects the 2nd read only memory when the 2nd type group is used, thereby allowing the proportional spacing operation corresponding to each type of the 2nd type group to be performed. Since the invention can be constituted by a simple hardware, by merely adding this hardware to a conventional printer such as an electronic typewriter, the fine proportional spacing can be executed for each type of various kinds of fonts.
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Johnson et al, "Print Condensation . . . " IBM Technical Disclosure Bulletin vol. 13, No. 12 p. 3678 May 1971.
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Booth et al "Scaled tab storage . . . " IBM Technical Disclosure Bulletin vol. 22, No. 12 p. 5399 May 1980.
Burr Edgar S.
Canon Kabushiki Kaisha
Kelley Steven S.
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