TransAct Ithaca 90PLUS Series Programmer's Manual page 61

Programmer's Guide
Function
ASCII
Hexadecimal
Decimal
IPCL
Description
11/07/05
PcOS Series 90PLUS
Print quad-density graphics (240 h x 72 v dpi)
1 2
[ESC] Z <n> <n>
1 2
1BH 5AH <n> <n>
1 2
<27> <90> <n> <n>
none
1 2
The [ESC] Z <n> <n> command prints n1 + 256 * n2 bytes of quad-density
graphics (240 dpi) at half speed with no consecutive dots. (Quad-density graphic
mode is generally used to print 240 h x 144 v dpi resolutions in two passes).
Rev Q
Printer Control Codes
Graphic Mode
Page 49