Incremental printing of symbolic information – Ink jet – Controller
Patent
1996-09-04
1999-07-20
Hilten, John S.
Incremental printing of symbolic information
Ink jet
Controller
347 37, 400279, 4007051, B41J 2100
Patent
active
059261927
ABSTRACT:
A printer control system including a pulse signal output unit for generating a pulse signal having periods including adjacent high and low levels in a number proportional to movement amount of a carriage; a period calculation unit detecting each rising and falling edge of the pulse signal and thereupon calculating a duration of a most recent period directly prior to a detected one of the rising and falling edges; a print period calculation unit uniformly dividing each received duration by a predetermined number corresponding to the print resolution of the printer to determine a print period for each received duration; and print timing determination unit determining a plurality of first print timings based on a first print period calculated by the print period calculation unit dividing duration of a period directly prior to one of a rising and falling edge of each successive pair of rising and falling edges, and determining a plurality of second print timings based on a first print period calculated by the print period calculation unit dividing duration of a period directly prior to another of the rising and falling edge of each successive pair of rising and falling edges.
REFERENCES:
patent: 5306084 (1994-04-01), Orii
patent: 5439301 (1995-08-01), Nishizawa
Brother Kogyo Kabushiki Kaisha
Hilten John S.
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