Epson EcoTank Photo ET-8500 Wireless Color All-in-One Supertank Printer - Manual (Page 231)

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Adjusting Print Quality
If your print quality declines, you may need to run a utility to clean or align the print head.
If running these utilities does not solve the problem, you may need to run a Power Cleaning or clean the
paper path.
Print Head Maintenance
Print Quality Adjustment
Power Cleaning
Cleaning the Paper Guide
Cleaning the Paper Path
Cleaning the Translucent Film
Cleaning the Paper Rollers
Checking the Number of Sheets Fed
Print Head Maintenance
If your printouts become too light, or you see dark or light bands across them, you may need to clean the
print head nozzles. Cleaning uses ink, so clean the nozzles only if print quality declines.
You can check for clogged nozzles before you clean them so you don’t clean them unnecessarily.
Note: You may not be able to clean the print head when the ink level in any of the tanks is low. You may
have to refill the ink tank first.
If you still see white or dark lines or gaps in your printouts, even after cleaning the print head several
times, you can run a Power Cleaning.
Print Head Nozzle Check
Print Head Cleaning
Parent topic: Adjusting Print Quality
Print Head Nozzle Check
You can print a nozzle check pattern to check for clogged nozzles.
Checking the Nozzles Using the Product Control Panel
Checking the Nozzles Using a Computer Utility
Parent topic: Print Head Maintenance