Epson-7900 Nozzle Cleaning:
Application > Utilities >
1. Launch Epson Utility
2. Click Epson 7900
3. Click Nozzle Check

On Epson-7900 Printer:
• Press Menu > Maintenance > Cleaning
> Normal Cleaning
> Cleaning Color Pairs clean printheads individually. It wastes less ink.
> Power Cleaning is a full printhead cleaning. It takes more time, and uses more ink.
> Auto Cleaning is a deep cleaning procedure.

Epson-4880 Nozzle Cleaning:
Application > Utilities >
1. Launch Epson Utility
2. Click Epson 4880
3. Click Nozzle Check
4. Click Clean > Print > Finish