If your printouts become grainy or blurry, or you see dark or light bands across them, you may need to align the print head.
1. Load a few sheets of plain paper in the sheet feeder.
2. Press Setup.
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5. Press Start.
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9. When you finish, press OK and you see a message indicating alignment is complete.
1. Load a few sheets of plain paper in the sheet feeder.
2. Windows:
Right-click the printer icon in the bottom right corner of your screen (the taskbar) and select Print Head Alignment.Macintosh:
Open the Applications folder, open the EPSON Printer Utility 2, select CX8400 Series, and click OK. Then select Print Head Alignment.