press [1] and [*] togheter and then turn on the copier after the beep enter 100 then [start] type 18 then [start] press [200%] twice then type 100 and then [interupt] and then turn off copier ,whit this code department controll function will be turn on.
now press [8] and [start] togheter and turn on copier enter your code and then press [interupt] and turn off your copier . now turn on your copier normally and enjoy from security!!!
for more information see this complete refrence: