108 Z4Mplus and Z6Mplus User Guide
Troubleshooting
Printer Diagnostics
Printer Diagnostics
Power-On Self Test
A Power-On Self Test (POST) is performed automatically each time the printer is
turned on. During this test sequence, the front panel lights and liquid crystal
display (LCD) monitor the progress of the POST. If the printer fails any of these tests,
the word FAILED is display. If this occurs, notify an authorized Zebra reseller.
Additional Printer Self Tests
These self tests produce sample printouts and provide specific information that help
determine the operating conditions for the printer.
Each self test is enabled by pressing a specific front panel key or combination of keys
while turning the printer On (l). Keep the key(s) depressed until the DATA light turns
off (approximately five seconds). When the Power-On Self Test is complete, the
selected self test starts automatically.
Note • When performing self tests, avoid sending a label format to the printer. In
the case of a remote host, disconnect all data interface cables from the printer.
• When cancelling a self test prior to its actual completion, always turn
the printer Off (O) and then back on to reset the printer.
• When performing these self tests while in the Peel-Off Mode, you
must remove the labels as they become available.
• If your media is not wide enough or long enough, unexpected or
undesired results may occur. Ensure your print width is set correctly
for the media you are using before you run any self tests, otherwise
the test may print out on the platen roller. See page 65 for
information on setting the print width.
