Ricoh 3800C Operating Instructions Manual page 196

A A A A Select a line type you usually use.
B B B B Press [OK].
Program Economy Time
Limitation
You can program only one Economy Time.
A A A A Enter the Economy Time (24 hr format)
with the number keys.
Operating InstructionsFacsimile Reference (option) <Advanced Features>
Note
If you make a mistake, press [Clear] or
the { { { { Clear/Stop} } } } key and try again.
B B B B Press [OK].
On Hook Mode Release Time
A A A A Select [1 minute], [3 minutes], [5 minutes]
or [10 minutes] to start the On Hook
mode.
B B B B Press [OK].
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