Ricoh DSm415 Operating Instructions Manual page 84

Troubleshooting
Problem
Cannot print in duplex
mode.
You forgot your key opera-
tor code.
4
74
Causes
You cannot use paper in
the bypass tray for duplex
printing.
[Off] is selected for [Duplex]
in Paper Type: Tray 1-2.
—
Solutions
For duplex printing, select Tray 1-2
in copier mode or with the printer
driver.
Select [On] for [Duplex] in Paper
Type: Tray 1-2. See p.30 "Paper
Type:Tray 1– 2".
Contact your service representative.