Intermec EasyCoder PC4 Programmer's Reference Manual page 139

Chapter 7 — Commands
Remarks:
124
This command affects the complete print image, including text,
bar codes, graphics, lines, and boxes, as well as the location f the
reference point, see
Note: that printing a test label in the Test modes or using a U or
UP command resets the print direction to default (ZT).
PC4
A label printed using the command ZT.
EASYCODER PC4
A label printed using the command ZB.
Example:
This example makes the printer print from the bottom of the
image, see command below.
ZB
ESim for the PC4 and PF8 Printer Programmer's Reference Manual
"R - Set Reference Point" on page
EASYCODER
Feed Direction
Feed Direction
104.