Lexmark E320 - Printer - B/W Service Manual page 140

4500–E320/E322
Mode
Demo printing
Diagnostics
tests
3-4
Service Manual
Method of entry
NVRAM power–on default
flag set to Demo
AND
Turn on printer with cover
closed.
OR
Print engine cleaning
cycle page from special
function menu.
OR
Operator panel reset from
hex trace.
OR
Print quality test page
from special function
menu.
OR
Reset defaults from
special function menu.
Turn on printer while
pressing the button with
the top cover open.
Once the printer posts the
top cover open indication,
close the top cover.
Method of exit
Turn off printer and follow
instructions for method of
entry.
Turn off printer and follow
instructions for method of
entry.