Epson SureColor P900 17" Photo Printer - Manual (Page 104)

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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 replace the ink cartridges.
Print Head Maintenance
Print Head Alignment
Cleaning the Paper Guide
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 cannot clean the print head if an ink cartridge is expended, and may not be able to clean it
when a cartridge is low. You must replace the cartridge first.
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
Checking the Nozzles Using the Product Control Panel
You can check the print head nozzles using the control panel on your product.
1. Load a few sheets of plain paper in the rear paper feeder.
2. Select the icon on the LCD screen
3. Select Maintenance > Print Head Nozzle Check .
4. Select Start .