Using Hex Dump Mode - Epson LQ-670 User Manual

After a few seconds, the printer loads the paper
automatically, and then begins printing the self test.
A series of characters is printed.
Note:
To temporarily stop the self test, press the Pause button. To
resume the test, press the Pause button again.
3. To end the self test, press the Pause button to stop printing.
If paper remains in the printer, press the Load/Eject
button to eject the printed page. Then turn off the printer.
c
Caution:
Do not turn off the printer while it is printing. Always press
the Pause button to stop printing, and the Load/Eject
button to eject the printed page before you turn off the printer.

Using Hex Dump Mode

If you are an experienced user or a programmer, you can print
a hexadecimal dump to isolate communication problems
between the printer and your software program. In hex dump
mode, the printer prints all data it receives from the computer
as hexadecimal values.
To print a hex dump, follow the steps below.
1. Make sure that A4 (210 297 mm, 8.3 11.7 inches) or
wider paper (such as letter size paper) is loaded in the
printer.
2. To enter hex dump mode, hold down both the LF/FF and
Load/Eject buttons while you press the Operate button
to turn on the printer.
Troubleshooting
7
7-5