Adjust Print Quality : Clean the Paper Guide

Clean the Paper Guide
If you see ink on the back of a printout, you can clean the paper guide to remove any excess ink.
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Windows: Right-click the  printer icon in the bottom right corner of your screen (the taskbar), select Printer Settings, click the Maintenance tab, and select Paper Guide Cleaning.
Macintosh: Open the Applications folder, then the Epson Software folder, then open EPSON Printer Utility 4. Select Paper Guide Cleaning.
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Click the Cleaning button to feed a sheet of paper through the printer.
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