Diagnostics and Troubleshooting
243
Communications Issues
Label Formats Not Recognized
Issue 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) for
your connection. You may wish to reinstall
the printer driver following the instructions in
Install the Printer Driver and Connect the
Printer to the Computer on page 51.
If you are using serial communication, check
the serial port settings. See PORTS
on page 93.
If you are using serial communication, make
sure that you are using a null modem cable
or a null modem adapter.
Check the printer’s handshake protocol
setting. The setting used must match the one
being used by the host computer. See HOST
HANDSHAKE onpage173.
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 COMMAND CHAR on page 161 and
DELIMITER CHAR on page 163.
Incorrect data is being sent
to the printer.
Check the communication settings on the
computer. Ensure that they match the printer
settings.
If the problem continues, check the label
format.
Labels Stop Printing Correctly
Issue Possible Cause Recommended Solution
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
General Specifications onpage260 for
requirements.
Check the printer driver or software
communications settings (if applicable).
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