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Troubleshooting
Printer Diagnostics
1/13/2016 ZD420 User’s Guide 212485-001 Rev. A
Media Sensor Profile (Figures 5 and 6) The line labeled MEDIA (1) on the sensor profile
indicates the media sensor readings. The media sensor threshold settings is indicated by
WEB (2). The media out threshold is indicated by OUT (3).The upward spikes (4) indicate gaps
between labels (the web), the lines between the spikes (5) indicate where labels are located, and
the numbered line at the top (6) provides measurement in dots from the start of the printout.
If you compare the sensor profile printout to a length of your media, the spikes should be the
same distance apart as the gaps on the media. If the distances are not the same, the printer may
be having difficulty determining where the gaps are located.
Figure 5 • Sensor Profile (Gap Media)
Figure 6 • Sensor Profile (Black Mark Tag Media)
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