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Maintaining Your Printer 81
The green power light flashes and the printer makes noise. Charging takes
about half a minute. When it’s finished, the green power light stops flashing
and stays on, and the red light goes out.
Caution: Never turn off the printer while the green power light is flashing,
unless the printer hasn’t moved or made noise for more than 5 minutes.
Aligning the Print Head
If your printouts contain misaligned vertical lines, or you see light or dark horizontal
banding, you may need to align the print head.
1. Turn on the printer.
2. Load several sheets of paper.
3. Windows: Right-click the printer icon on your taskbar (in the lower right
corner of your screen). Select Print Head Alignment.
Macintosh OS 8.6 to 9.x: From the File menu, select Page Setup or Print. Click
the Utility button, then click the Print Head Alignment button.
Macintosh OS X: Open the Applications folder and select EPSON Printer
Utility
. Select SP 900 in the printer list, click OK, and select Print Head
Alignment.
4. Follow the instructions on the screen to print a test page. You see this window: