Epson SureColor T3170M 24" Wireless Printer, Scanner & Copier - Manual (Page 200)

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• Mac : In the Apple menu or the Dock, select System Preferences . Select Print & Fax , Print &
Scan , or Printers & Scanners , select your product, and select Options & Supplies . Select
Utility and select Open Printer Utility .
3. Select Nozzle Check .
You see a window like this:
4. Click Print .
The nozzle pattern prints.