Epson 850N Printer User Manual


 
Troubleshooting
7-3
Running a Self Test
You can run a self test to determine whether the problem comes
from the printer itself or some other source.
If the results are satisfactory, the problem lies in your
software settings, the interface cable, or your computer.
If the self test does not print correctly, you have a problem
with your printer. See the suggestions in this chapter for
possible solutions.
1. Make sure both the printer and computer are turned off.
2. Disconnect the network cable from the printer.
3. Make sure paper is loaded in the printer.
4. Hold down the
E
load/eject button (for a 360 dpi test) or
the
Y black cleaning button (for a 180 dpi test) and press
the
Ppower button. Hold down the buttons until the
Ppower light starts to flash, then release them.
The printer prints on the first and last lines of one sheet of
paper, then prints a nozzle check pattern (shown on
page 5-8) and samples of fonts and colors on the next sheet.
5. To end the test, turn off the printer. Then reconnect the
network cable and turn on your printer and computer.
B A When an ink light flashes, your ink supply is low. Make sure
you have a replacement cartridge.
B A When an ink light comes on, you need to replace the ink
cartridge. See Chapter 5 for instructions.
P S B A When the power light and paper out light flash and all the
other lights are on, your printer has a carriage error. See
page 7-9 for more information.
P S B A When all the lights flash, your printer may have an internal
error. See page 7-10 for more information.
Caution:
Load paper that’s at least
8.27 inches (210 mm)
wide. This prevents ink
from spraying inside the
printer and smudging
your printouts.
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