106 Z4Mplus and Z6Mplus User Guide
Troubleshooting
Print Quality Problems
Communication Problems
Data light does not flash when a label format is sent.
Several labels print, then the printer skips, misplaces, misses, or distorts the image on
the label after a label is sent to the printer.
A label format was sent to the printer but not recognized. The DATA light flashes but
no printing occurs.
Problem Solution
The printer does not respond to
label requests.
Check the printer driver or software
communications settings.
Confirm you are using the correct
communication cable. See Cable
Requirements on page 32.
Via the front panel, check the protocol
setting. It should be set to the default none.
See page 73.
Ensure that the correct driver is being used.
Problem Solution
The host is set to EPP parallel
communications.
Change the settings on the computer host
to standard parallel communications.
The serial communication
settings are incorrect.
Standard RS-232 cables are appropriate for
lengths under 50 ft. (15.2 m); RS-422 and
RS-485 cables allow serial transmission up
to 4000 ft.(1.2 km). Check cable length and
shielding, and confirm the appropriate RS-
232, RS-422, or RS-485 setting is being
used.
Check the printer driver or software
communications settings.
