U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Printer control apparatus

Patent 4655622 Issued on April 7, 1987. Estimated Expiration Date: Icon_subject August 2, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Method and apparatus for printing segmented characters
Patent #: 3991868
Issued on: 11/16/1976
Inventor: Robinson ,   et al.

Multiple speed ink jet printer
Patent #: 4216480
Issued on: 08/05/1980
Inventor: Buehner ,   et al.

Dot matrix printer with compressed character data storage Patent #: 4400791
Issued on: 08/23/1983
Inventor: Kitado

Inventor

Application

No. 06/761705 filed on 08/02/1985

US Classes:

400/582, Including programmed-control-system for record-medium feed (e.g., on auxiliary record)400/303, For varying carriage feed400/54, SAFETY SWITCH OR CONDITION-RESPONSIVE-CUTOFF SWITCH FOR ELECTRICALLY POWERED TYPEWRITER400/61INCLUDING CONTROL OF FORMAT AND SELECTION OF TYPE-FACE BY PROGRAMMED CONTROL-SYSTEM (E.G., INPUT TYPEWRITER)

Examiners

Primary: Sewell, Paul T.

Attorney, Agent or Firm

International Classes

G06F 17/21 (20060101)
G06K 15/02 (20060101)
G06K 15/10 (20060101)
G06K 15/16 (20060101)

Foreign Application Priority Data

1984-08-29 JP

Abstract

In a serial printer in which character patterns for one line are image-developed in a line buffer and are printed, when the number of dots along a subscanning direction of a dot pattern obtained by expanding a standard character exceeds that of a printing head along the subscanning direction, the expanded character pattern is divided into a plurality of zones along a scanning direction, and the dot pattern for each zone is image-developed in the line buffer. Since a relative distance between a development start position and a printing head position for each character in one line is stored in advance, if character patterns are sequentially image-developed from one having a smaller relative distance, a character string including different dot structures can be printed in a desired format.

Other References

  • IBM Tech. Disc. Bulletin, by B. R. Cavill, vol. 24, No. 11A, Apr. 1982, pp. 5430-5432
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