Epson LX-90 User Manual - Parallel 8620 PIC for LX-90 - Page 96
Select High-Speed Double-Density Graphics Mode, Format, Comments, Hexadecimal: 1B
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ESC Y Select High-Speed Double-Density Graphics Mode Format: ASCII code: ESC Decimal: 27 Hexadecimal: 1B Y (n1) (n2) 89 (n1) (n2) 59 (n1) (n2) Comments: Turns on high-speed double-density graphics mode with 960 possible dot positions per B-inch line. Will not print consecutive dots in a row. If d is the total number of columns required, nl = d MOD 256 n2 = INT(d / 256) This command must be followed by d data numbers. ESC Z Select Quadruple-Density Graphics Mode Format: ASCII code: ESC Decimal: 27 Hexadecimal: 1B Z (n1) (n2) 90 (n1) (n2) 5A (n1) (n2) Comments: Turns on quadruple-density graphics mode with 1920 possible dot positions per B-inch line. Will not print consecutive dots in a row. If d is the total number of columns required, n1 = d MOD 256 n2 = INT(d / 256) This command must be followed by d data numbers. c-20