Ricoh Aficio MP 161SPF - Manual (Page 275)

Searching
267
7
Searching by User Code
Search the address book using registered user codes.
A
Press [Search].
B
Select [Search by User Code] using {U} or {T}, and then press the {OK} key.
C
Enter the user code you want to search for using the number keys, and then
press the {OK} key.
D
Press the {OK} key.
The search results appear.
E
Select the name using {U} or {T}, then confirm it by pressing {V}, and then
press the {OK} key.