Ricoh Aficio MP 1600L Operating Instructions Manual page 26

Troubleshooting When Using the Facsimile Function
C
Select [General Settings/Adjust] using {U} or {T}, and then press the {OK} key.
D
Select [Adjust Sound Volume] using {U} or {T}, and then press the {OK} key.
3
E
Select the item you want to adjust using {U} or {T}, and then press the
{OK} key.
F
Select the volume using {W} or {V}, and then press the {OK} key.
Press the {Escape} key to cancel the setting and the display returns to that of
E
step .
G
Press the {User Tools/Counter} key.
The standby display appears.
20
ASB033S