Adjust Print Quality : Clean the Print Head

Check the Print Head Nozzles
You can print a nozzle check pattern to check for clogged nozzles using your product’s control panel or your software. See these sections below:
From the Control Panel
From the Computer
From the Control Panel
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Select Maintenance, then select Nozzle Check.
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If there are gaps or the pattern is faint, select head cleaning.
From the Computer
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2.
Windows:
Right-click the  printer icon in the bottom right corner of your screen (the taskbar) and select Nozzle Check.
Macintosh:
Open the Applications folder, open the Epson Software folder, and select Epson Printer Utility 4. Then select Nozzle Check.
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Click Print.
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If there are gaps or the pattern is faint, clean the print head.