Epson DFX-8000 User Manual page 230

Printing
Note: If you are still having printing'problems after trying the
solutions in this section, you can use data dump mode. This
mode helps advanced users find the cause of communication
between the printer and appkation
problems
dump
mode, the printer produces an exact printout of the codes
reaching the printer. See the section on data dump mode in
Chapter 3.
If the printer still does not print correctly, try the self test described
in Chapter 1. If the self test works properly, the printer is all right,
and the problem probabIy
cable. If the self test does not work, contact your Epson dealer.
7-12 Troubleshooting
Iies in the computer, the software, or the
programs. In data