Datamax Label Printer Operator's Manual page 44

Printer fails to turn on
A fuse may be blown, call for service.
Faulty AC cord.
A bad power switch may exist on the printer, call for service.
A faulty AC wall outlet.
Label advances 1-2 inches before a fault indication
The ribbon is installed incorrectly. Make sure that the dull
side (side with ink) is facing the paper.
A bad ribbon/paper combination is resulting in an insufficient
amount of friction between paper and ribbon. Ensure that the
correct type of ribbon is being used.
Label advances 12 inches before a fault indication
The media sensor or media sensor circuitry may be defective,
call for service.
The labels start to print on an angle and the top-of-form is not
able to be sensed, (improper tracking of media)
seen when switching between various widths of stock.
The media is not loaded properly, see Section 1.6. When
loading media be certain that the media hub and media guide
are against the media.
36
Troubleshooting
commonly
Ovation 2