The Auto Nozzle Check and Cleaning utility prints a nozzle check pattern that the printer then reads to see if you have any clogged nozzles. If cleaning is needed, the printer automatically cleans the print head.
1.Make sure the printer is turned on but not printing, and the red H ink light is off. (If the H ink light is flashing or on, you need to replace a cartridge; see page 80.)
2.Load several sheets of plain,
3.Do one of the following:
Windows: 
icon on your taskbar (in the lower right corner of your screen). Select Auto Head Cleaning.
Mac OS X: Open the Applications folder and select EPSON Printer Utility. Select SP R800, click OK, and select Auto Nozzle Check and Cleaning.
Mac OS 8.6 to 9.x: Choose File > Page Setup or Print. Click the 
utility icon, then click Auto Nozzle Check and Cleaning.
4.Follow the instructions on the screen. The printer prints and examines the nozzle check pattern shown below. If cleaning is necessary, it then cleans the print head and prints and checks another nozzle check pattern.
5.The utility prints and checks up to five times. If some print head nozzles are still clogged, it displays an
If you still have print quality problems, check the solutions beginning on page 95. You can also turn the printer off and wait
78 Maintaining Your Printer