Zebra ZD620 - Possible Cause - 6; Issue: No Print on the Label; Possible Cause - 1; Possible Cause - 2

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Troubleshooting
Possible Cause - 6
You may be using the wrong power supply.
Resolution
Verify you are using the power supply that came with this printer.
Issue: No Print on the Label
The printed image does not look right.
Possible Cause - 1
The media may not be direct thermal media (and is thermal media made for thermal
transfer printers).
Resolution
See the test procedure, Determining Thermal Media Types
.
Possible Cause - 2
Media has been loaded incorrectly.
Resolution
The media printable surface must face up towards the printhead. See Getting Ready to
Print followed by Loading Roll Media.