By comparing the characters printed in the right column with the printout of the hexadecimal
codes, you can check the codes being received by the printer. If characters are printable, they
appear in the right column as ASCII characters. Nonprintable codes, such as control codes, are
represented by dots.
4. To exit the hex dump mode, press the
button and eject the printed page(s), and turn off the
printer.
!
Caution:
Do not turn off the printer while it is printing the hex dump. Always press the
button to stop
printing and the u button to eject the printed page before you turn off the printer.
LQ-690II/LQ-690IIN User’s Guide
Troubleshooting 94