Datasheet

Troubleshooting
Print Quality Problems
980006-001 Rev. A Zebra P630i & P640i Card Printer Service Manual 111
4.6 Print Quality Problems
This section will help you resolve print quality problems. The print quality is dependent on
several factors. The two most important factors that will increase your print quality are
cleanliness and card stock. To diagnose and fix print quality problems, follow the
troubleshooting procedures below:
Example • Small spots appear on the printed card with a non-printed area or a different color.
• Possible Cause:
Contamination on the card surface.
Solution:
Check that cards are stored in a dust free environment.
Use a different supply of cards.
• Possible Cause:
Cleaning roller not installed.
Dust inside the printer and/or dirty cleaning roller.
Solution:
Perform a cleaning of the printer.
Check that the protective cover was removed from the ribbon cartridge
cleaning roller.
If printing one card at a time, replace the cleaning roller located at the front of
the printer.
Important • The use of Zebra cards and True Colours
®
ribbons will give the best print
quality.