Zebra Technologies R-140 - Manual (Page 96)

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 monitor the progress of the POST. If the printer fails
any of these tests, the word “FAILED” will be added to the 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 POWER switch on. Keep the key(s)
depressed until the DATA light turns off. When the power-on self test is
complete, the selected self test starts automatically.
NOTES: 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 canceling a self test prior to its actual completion, always
turn the printer power off 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
and/or undesired results may occur. Make sure that 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 52 for information on setting the print width.
Zebra R-140 User’s Guide 87