ASTRO-MED QLS-2000XE SERIES, Operation & Setup Manual, Page: 128 / 214

6-2 Troubleshooting
Printing Problems
Missing print (No print or a clear vertical line in the label)
This is an example of debris on the print line or a blown dot on the
printhead.
For this type of missing print you should first try cleaning the printhead then
replace it if necessary. Below are tips for trouble shooting other types of
missing print.
1 Clean the printhead, printline, platen rollers, and ribbon guide shafts.
(See Routine Cleaning on page 6-22)
2 Ensure the ribbon is loaded correctly.
(See Loading Ribbon on page 6-24)
3 Ensure the labels/tags are loaded correctly.
(See Loading Label/Tag Media on page 6-26)
4 Ensure all printheads that you want to use are enabled.
(See Enabling/Disabling Printheads on page 6-29)
5 Try a different roll of ribbon.
6 Try a different roll of labels/tags.