DRIVE SYSTEM OF SERIAL DOT PRINTER
PURPOSE:To perform the dot printing corresponding to various resolving power using a reduced number of drive signals, by equally driving odd number dot arrays and even number dot rows and making the intervals of the equally driven odd number dot arrays and even number dot arrays same to each other....
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To perform the dot printing corresponding to various resolving power using a reduced number of drive signals, by equally driving odd number dot arrays and even number dot rows and making the intervals of the equally driven odd number dot arrays and even number dot arrays same to each other. CONSTITUTION:A driver 8a drives the dots of an odd number dot row 10 and the dots of an even number dot row 13 according to a 12-bit dot pattern each in the timing of a drive signal T1. Similarly, a driver 8b rives the dots of an even number dot row 11 and the dots of an odd number dot array 12 according to a 12-bit dot pattern each in the timing of a drive signal T2. Therefore, by the drive signal T1, the odd number dot array 10 of a head 1a takes change of the white dots of an odd number line (n) and the even number dot array 13 of a head 1b takes charge of the white dots of an even number line n + 1 and, by the drive signal T2 delaying from the drive signal T1, the even number dot array 11 of the head 1a takes charge of the black dots of an odd number line (n) and the odd number dot array 12 of the head 1b takes charge of the black dots of an even number line n + 1 and alternate printing is made possible. |
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