Sharp AR-651 Service Handbook page 149

(6) When the RESET key is pressed, the
message display will change as
follows.
(7) Press the INITIALIZE key. This will
cause the initialization of the counter for
the fuser unit. The message display will
return to the situation in (3).
(8) Turn off the power switch. While
pushing the "0" and "8" keys at the
same time, turn on the power switch
again. The message display will
change as follows.
(9) Key in the code number "940" and
press the START key. The message
display will change as follows.
(10) Key in "1" and press the SET key.
When the message display has
returned to the situation in (8), turn off
the power switch.
(11) Turn the power switch back on again.
18) PRESS
19) END
4 - 37 AR-651/810 PREVENTIVE MAINTENANCE