Dot matrix printer

Details Dot matrix printer Dot matrix printer

1987-07-30

1988-10-25

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9304, 400 76, 400124, B41J 312

Patent

active

047800062

ABSTRACT:
In a slip printer, the slip is inserted or placed on the slip table at 90.degree. to normal orientation to accommodate slips which are wider than the print station. Character data and space data are input into memory and printing is done by shifting out character data along with space data on either side of the character in dot by dot manner. A pattern processing section is capable of changing the arrangement of the dot pattern read out from memory, a space data generating section is adapted to output space data signals before and after output of pattern data from the processing section, and a print data buffer stores the process data and the space data for one line dot row prior to printing.

REFERENCES:
patent: 3814227 (1974-06-01), Hurd
patent: 4431319 (1984-02-01), Karaki et al.
patent: 4521123 (1985-06-01), Boehmer
patent: 4543644 (1985-09-01), Kozima et al.
patent: 4655622 (1987-04-01), Aoki
patent: 4689824 (1987-08-01), Mitchell
patent: 4703515 (1987-10-01), Baroody
"Printing Throughput Enhancement", by T. E. Schall, IBM Tech. Disc. Bull., vol. 25, No. 8, Jan. 1983, pp. 4098-4099.

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