Oki MICROLINE ML521 Reference Manual

Chapter 6: Graphics Commands for 9-Pin Printers 55
Graphics Density Selection Commands (ML)
⻬ ML320 Std., ML321 Std. ⻬ ML320 Turbo, ML321 Turbo ⻬ ML520, ML521
Function ASCII Dec Hex
Select Single Density Graphics
ESC P
or ESC Q
27 80
or 27 81
1B 50
or 1B 51
Select Double Density Graphics ESC R 27 82 1B 52
Select Double Speed &
Quadruple Density Graphics
ESC # Q 27 35 81 1B 23 51
Use these commands to select the density of the printing that will be used: single density (60
dpi), double density (120 dpi), or quadruple density (240 dpi). The quadruple density selection
command also engages double speed.
Graphics Select/Print Command (Epson)
⻬ ML320 Std., ML321 Std. ⻬ ML320 Turbo, ML321 Turbo ⻬ ML520, ML521
Function ASCII Dec Hex
Graphics Select/Print ESC * m L
n
H
n
[data] 27 42 m L
n
H
n
[data]
1B 2A m L
n
H
n
[data]
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 37: Epson ESC * m Command —
8-Pin Graphics Density Codes for m Values (9-Pin Printers)
Value of m Graphics Type Horizontal Density (dots per inch)
0 Single Density 60 dpi
1 Double Density 120 dpi
2 High Speed Double Density 120 dpi
3 Quadruple Density 240 dpi
4 CRT I 80 dpi
5 Plotter (Single Density) 72 dpi
6 CRT II 90 dpi
7 Double Density Plotter 144 dpi

Oki MICROLINE ML521 Specifications

General

Brand	Oki
Model	MICROLINE ML521
Category	Printer
Language	English