Follow these steps, it should work
turn off copier.
open top toner cover.
turn copier back on.
when you see message "close top cover" press "system menu" button.
scroll up to "service setting" then press the # button, green "start" button and the "enter" button all at the same time.
then scroll down to "maint mode"
press "enter"
then enter 163
press" enter "
turn off copier then turn back on
close toner cover
you should be back in business
Madcat13, February 2011