Oki ML591 MICROLINE Reference Manual - Page 101

Graphics Select/Print Command (IBM AGM/E) ߜ ML390 Turbo, ML391 Turbo ߜ ML590, ML591 Function ASCII Dec Hex Graphics Select/Print ESC * m n1 n2 [data] 27 42 m n1 n2 [data] 1B 2A m n1 n2 [data] Note: The IBM AGM emulation combines the IBM Proprinter emulation with Epson LQ graphics for special graphics applications. This command is used to select the density, to designate the number of columns of data you'll be sending, and to specify the data to be sent. Parameter m This parameter specifies which density to use when printing the graphic image. The table below indicates the type of density for each value of m. Table 40: Epson ESC * m Command - 8-Pin Graphics Density Codes for m Values (24-Pin Printers) Value of m 0 1 2 3 4 6 32 33 38 39 40 Graphics Type Single Density Double Density High Speed Double Density Quadruple Density CRT I CRT II Single Density Double Density CRT III Triple Density Hex Density * Extrapolated (quasi density) Horizontal Density Pins (dots per inch) 8 60 dpi 8 120 dpi 8 120 dpi* 8 240 dpi* 8 80 dpi 8 90 dpi 24 60 dpi 24 120 dpi 24 90 dpi 24 180 dpi 24 360 dpi* Parameters Ln and Hn These parameters tell the printer how many columns of data you'll be sending: 8-pin modes have one byte of data per column, 24-pin modes have three bytes of data per column. These parameters can be assigned any value from 0 to 255. To calculate the values, first determine how many columns of dots there will be in your graphics image. Divide this number by 256 and assign the whole number to Hn; assign the remainder to Ln. Chapter 7: Graphics Commands for 24-Pin Printers 63