Printing; The Printer Does Not Print - Epson LQ-300 User Manual

The lights come on briefly and then go off. The lights stay off
even when the power is turned on again.
Check that the printer's voltage rating matches the voltage of
your electrical outlet. If the voltages do not match, unplug the
printer and contact your dealer immediately. Do not reconnect
the power cord to an electrical outlet.

Printing

The printer does not print

The light is off but nothing is printed.
Pause
Check that the software is installed properly for your printer,
as described on page 1-16. Check the software's printer settings.
Check both ends of the interface cable. Make sure the cable
meets both the printer and computer specifications.
The light is flashing and the printer beeps three times.
Pause
The printer may be out of paper. Load paper in the printer.
The printer sounds like it is printing, but nothing is printed.
The ribbon cartridge may not be installed properly. See
page 1-6.
The ribbon may be worn out. Replace
the
ribbon cartridge.
Troubleshooting 3-3