User's Manual

88 Zebra P630i & P640i Card Printer User’s Manual 980541-003 Rev. B
Troubleshooting
Print Quality Problems
Example • Printing shows very pale or inconsistent results.
• Possible Cause:
Ribbon has been stored improperly or is damaged.
Solution:
Change the ribbon and print again; see “Installing the Ribbon” on page 15.
• Possible Cause:
Cards may not meet specifications.
Solution:
Use a different supply of cards.
• Possible Cause:
Brightness and/or contrast may be set to values which are too high.
Solution:
Adjust brightness and/or contrast values in software; see “Image Adjustment Tab”
on page 64.
• Possible Cause:
Dust or embedded contamination on elements of the printhead.
Solution:
Clean the printhead; see “Printhead Cleaning” on page 81.