1992-12-29
1994-06-28
Evans, Arthur G.
395116, G06K 1500
Patent
active
053254694
ABSTRACT:
In a graphic processing method in a dot matrix printer, a previous graphic mode and a previous position value of an image data are respectively compared with a current graphic mode and a current position value of an image data. If the previous and current graphic modes and position values are identical to each other, an overwrite flag is set to on, and if the previous and current position values are not identical to each other and a value obtained by subtracting the previous position value from the current position value is within a space fill-in region, space fill-in process is performed. Thereafter, the current position value is replaced to the previous position value when the value is not within the space fill-in region or the space fill-in process is ended, and a pin number is initialized. Then an image data with respect to a corresponding pin is generated, and whether or not the overwrite flag is set to on is checked. If the overwrite flag is set to on, a current image data is overwritten to a previous image data of corresponding pin number and if the overwrite flag is not set to on, the current image data is inserted to the symbolic buffer.
REFERENCES:
patent: 4992958 (1991-02-01), Kageyama et al.
patent: 5125072 (1992-06-01), Ng
patent: 5136688 (1992-08-01), Morikawa et al.
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