Epson 777 Benutzerhandbuch

You can run a printer check to determine whether a problem comes from the printer 
itself or some other source. Follow these steps:

1. Make sure both the printer and computer are turned off.

2. Disconnect the interface cable from the printer.

3. Make sure letter-size or larger paper is loaded in the printer.

4. Hold down the 

 

b maintenance button, then press and release the 

 

Ppower 

button. Continue holding down the 

 

b maintenance button until the 

 

Ppower 

light starts to flash, then release it.

The printer prints one page showing its ROM version number, ink counter, and a 
nozzle check pattern. (If the pattern has gaps in its dots, you need to clean the 
print head; see page 19.)

5. To end the check, turn off the printer after it prints the check page. Then 

reconnect the interface cable and turn on your printer and computer.

If the check page prints, the problem probably lies in your software settings, the 
interface cable, or your computer.

If the check page doesn’t print, you may have a problem with your printer. Try the 
suggestions in “Problems and Solutions” beginning on page 30. If nothing seems to 
work, contact your dealer or EPSON as described on page 37.

 

P and 

 

b

 flash

When both lights flash as you’re replacing an ink cartridge, the flash 
pattern indicates which cartridge is low on ink, as described on 
page 22. 

If you’re not replacing ink but both lights are flashing, your printer may 
have an internal error. Turn off the printer, wait a few seconds, and turn 
it on again. If the lights still flash, contact your dealer or EPSON; see 
page 37 for contact information.

 

P and 

 

b

 are off

When both lights are off, the printer is not receiving power. Try these 
solutions:

■

Make sure the printer is turned on.

■

Turn off the printer, plug in the power cord securely, and turn on 
the printer again.

■

Make sure the outlet is operable and is not controlled by a switch 
or timer. If in doubt, try using another outlet.