Ricoh Aficio MP 161SPF - Manual (Page 252)

Registering Addresses and Users for Facsimile/Scanner Functions
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F
Press the {OK} key.
G
Press [Details].
H
Select [Register Group to] using {U} or {T}, and then press the {OK} key.
I
Select the group you want to delete using {U} or {T}, then confirm it by
pressing {W}, and then press the {OK} key.
J
Press [End].
K
Press the {OK} key.
L
Press the {User Tools/Counter} key.