• Lines not straight
• Overall poor color quality
• Uneven density
• Double lines in graphics, text
Gap Adjustment
• Make sure that the gap between the carriage and the platen has been adjusted correctly for the
type and thickness of the paper.
Print heads clogged
Do this procedure if three cleanings and one flushing have failed to produce an unbroken Nozzle
Check Pattern.
1. Make sure that the ambient temperature and humidity are within the acceptable range:
• Temperature Range: 10°C to 27°C (50 °F to 81°F)
• Humidity Range: 15% to 80% Rh
2. Clean the print heads again, and then print another Nozzle Check Pattern.
3. If the Nozzle Check Pattern is still abnormal, let the machine remain idle for 10 minutes.
4. Execute two more cleanings and one flushing.
• Be sure to print a Nozzle Check Pattern after each cleaning and the flushing.
• If you have produced an unbroken Nozzle Check Pattern, you can stop.
5. After the flushing, if the Nozzle Check Pattern is still not perfect, let the machine remain
idle for 8 hours.
6. Execute three more cleanings and one flushing.
• Be sure to print a Nozzle Check Pattern after each cleaning and the flushing.
• When you have produced an unbroken Nozzle Check Pattern, you can stop.
Paper Feed Faulty
• Do the Adjust Paper Feed Procedure
Horizontal Encoder Strip
• Make sure the horizontal encoder strip has been installed correctly.
• Inspect the strip for dirt or damage. Clean or replace the strip.
Printing Problems
725