4–7
Diagnostics and Troubleshooting
Printer advances media, but ribbon does not advance
Possible causes include the following:
•Ribbon installed incorrectly. Make sure the dull side (inked side) of the
ribbon is facing the media.
•Bad ribbon/media combination, resulting in insufficient friction between
media and ribbon. Verify that the correct ribbon is being used.
Print quality is good but printer skips every other label
A possible cause is that the label is formatted too close to the top edge
of the form. Leave white space equal to eight dot rows at the top of the
label.
Print is light on right side of label
Possible causes include the following:
•Media width adjustment cam is set for a narrower width than the width of
the media being used.
•Printhead is adjusted for thick media or card stock.
•Printhead misaligned.
Printer fails to turn on.
Possible causes include the following:
•Blown fuse. Call your authorized Printronix service representative.
•Faulty AC cord.
•Bad printer power switch. Call your authorized Printronix service
representative.
•Faulty AC wall outlet.
Power indicator on but nothing in display
Possible causes include:
•Contrast set too low. Turn contrast adjustment clockwise until the display
appears.
•Faulty display. Call your authorized service representative.
Printer Alarms
The printer has built in alarms that monitor printer status and media stock
conditions. Alarm messages display indicating the present status of the printer
and media stock levels. The alarms also indicate if the printer electronics detects
an error condition. Refer to Table 4–2, on page 4–8.