Technical Reference Guide – Command descriptions > 164
“m” represents one of the following four graphics modes:
K – Single-density
L – Low speed double-density
Y – High speed double-density
Z – Quadruple-density
n is a decimal value.
> Out of range:
If n does not equal a value specified in the above table, 
{ESC ? m n” is ignored and data is not printed as graphics 
data.
G
RAPHICS
 
RESOLUTION
> Code: ESC [ g n1 n2 m data
> Compatibility: 
ML1190 eco: IBM
ML1120 eco: IBM III
> Function:
MODE  PINS  N  HOR. DENS 
(DOTS/IN.) 
BYTES/
LINE 
Single-density 8 0 60 480
Double-density 8  1 120 960
HS Double-density  8  2  120 960
Quadruple-density 8  3  240 1920
CRT I  8  4  80 640
CRT II  8  6  90 720
Single-density 24 32 60 480
Double-density 24 33 120 960
CRT III  24  38  90 720
Triple-density 24 39 180 1440
Hex-density 24 40 360 2880