Communications problems – Zebra Technologies ZEBRA RXI4TM User Manual
Page 146

Troubleshooting
Communications Problems
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Communications Problems
identifies problems with communications, the possible causes, and the recommended
solutions.
Table 14 • Communications Problems
Problem
Possible Cause
Recommended Solution
A label format was sent to
the printer but was not
recognized. The DATA
light does not flash.
The communication
parameters are incorrect.
Check the printer driver or software
communications settings (if applicable).
If you are using serial communication, check
the serial port setting in the control panel
menu. See
If you are using serial communication, make
sure that you are using a null modem cable or a
null modem adapter.
Using the control panel menu, check the
protocol setting. It should be set to
NONE
. See
.
If a driver is used, check the driver
communication settings for your connection.
A label format was sent to
the printer. Several labels
print, then the printer
skips, misplaces, misses, or
distorts the image on the
label.
The serial communication
settings are incorrect.
Ensure that the flow control settings match.
Check the communication cable length. See
for requirements.
Check the printer driver or software
communications settings (if applicable).
A label format was sent to
the printer but was not
recognized. The DATA
light flashes but no
printing occurs.
The prefix and delimiter
characters set in the printer
do not match the ones in the
label format.
Verify the prefix and delimiter characters. See
Set Format Prefix Character on page 104
Set Delimiter Character on page 104
for the
requirements.
Incorrect data is being sent
to the printer.
Check the communication settings on the
computer. Ensure that they match the printer
settings.
Ensure that ZPL II is being used.
If the problem continues, check the ZPL II
format for changes to
^CC
,
^CT
, and
^CD
.