The printer uses a Null Modem (cross-over) cable for DTE communications. The required cable must have a nine-pin D type (DB-9P) male connector on one end which plugs into the mating (DB-9S) serial port located on the back of the printer. The other end of this signal interface cable connects to a serial port on the host computer.
The serial port communication settings between the printer and host (typically a PC) must match for reliable communication. The settings that need changing most often are Bits per Second (bps, also known as baud rate) and Flow Control.
To set serial communications between the printer and the host computer, you can use the
^SC
ZPL programming command. Alternatively, reset the printer to its default printer configuration.
Factory defaults for serial communication settings are:
Bits per Second (baud rate):
9600
Word length:
8
-bit
Parity:
NO
Stop bit:
1
Software data flow control (in the Windows-based host system):
XON/XOFF
Do not use RS-232 cable adapter dongles (DTE <> DCE) with this printer. Some dongles can interfere with the operation of USB host port devices at printer power-up.
