Datasheet

Troubleshooting
Printhead Problems
980006-001 Rev. A Zebra P630i & P640i Card Printer Service Manual 123
Random colored patterns on image
• Ribbon wrinkling. Reduce take-up torque; see ‘Ribbon Torque Adjustment’ on
page 126. Check printhead pressure/height; see ‘Printhead Position (Height/Pressure)
Adjustment’ on page 133.
• Too much heat being applied to YMC panels. Try reducing gain, offset, and preheat
separately for each color in the driver.
Select Start > Printers and Faxes. Right click on the Zebra P630i or Zebra P640i
printer listing. Select Properties > Device Settings > Color Calibration.
• Printhead running too hot. Can happen after head replacement if the head resistance is
incorrectly entered via the printer driver; see ‘Printhead Adjustments’ on page 132.
Random colored lines
• Probably resulting from excessive take-up torque; see ‘Ribbon Torque Adjustment’
on page 126.
Scratches/dings on long edges of card
• Look for a narrow band of abrasion up to about 0.1" (2.5 mm) in from either or both
of the long edges. Contact Zebra Customer Service.
• Card hopper base set too low. Contact Zebra Customer Service.