Ricoh Aficio MP 161SPF - Manual (Page 260)

Registering Addresses and Users for Facsimile/Scanner Functions
252
7
O
Enter a protection code using the number keys, and then press the {OK}
key.
P
Press the {Escape} key.
Q
Press [End].
R
Press the {OK} key.
S
Press the {User Tools/Counter} key.
Note
❒ Specify a protection code of up to eight digits. You can also specify "Pro-
tection" without specifying a protection code.