Printronix SL4M User Manual page 192

Chapter 6
Diagnostics for E0xx, Bad NVM, or ILL NVM Errors
Table 14. Printer Problems and Solutions (continued)
Symptom
Smears or voids in printed
image.
192
Solution/Explanation
1. Clean the printhead.
2. Make sure the printhead temperature (Print Intensity) is
not too high. Change the Print Intensity value in the
MEDIA SETUP menu. See "Print Intensity" on page 69.
3. Verify that the printhead pressure switch are positioned
correctly to match the media thickness installed.
4. Make sure the printhead balance adjustment dial is set
properly for the media width installed.
5. Make sure that the ribbon is routed correctly and not
routed through the media sensor assembly.
6. Skin oils can adhere to the surface of label stock, causing
fingerprints which inhibit thermal transfer. Wipe label stock
with a cloth, or remove a few feet of labels to expose a
clean area. Handle labels by the edges.
7. Check that the media has not been mishandled before or
during installation in the printer. Soiled media or media
with fingerprints will prevent proper ribbon transfer.
8. Check that media has not been installed inside out.
Surfaces on both sides may look identical but can produce
big differences in print quality.
9. Make sure the correct ribbon and media combination are
being used. Use the correct ribbon type.
10. Check the ribbon for creases or folds across its surface.
Smooth out the ribbon to remove any creases.
11. Reduce the Print Speed value through the MEDIA SETUP
menu or via host software.
12. If using ribbon (Transfer Print mode), do not use direct
thermal media.