Ricoh Aficio 401 Operating Instructions Manual page 68

The options are as follows:
Off - specifies that you do not want the machine to automatically
change paper trays when the current tray becomes empty during the
print job.
On - specifies that you want the machine to automatically change paper
trays when the current tray becomes empty during the print job and
another tray contains paper of the same size and orientation.
The default is On.
Bypass Tray Timeout Setting Screen
When you press the [Change] button for the Bypass Tray Timeout option,
the Bypass Tray Timeout Setting screen displays.
You use the numerical keys to change the number of seconds after which a
message displays to request that the user open the Bypass Tray for use
with the print job. The timer stops when the Bypass Tray is closed. The
valid range is 5 to 300, entered in increments of 1. The default is 300
seconds.
When a print job specifies a Bypass Tray paper feed and the Bypass Tray
door is closed, the "Please open the Bypass Tray" message displays.
When the Bypass Tray is open but not paper is loaded, the "No Paper.
Please add xx paper to Bypass Tray." message displays. When paper is
loaded in the Bypass Tray, the paper feeds automatically until the job is
complete. When a Large Capacity Tray (LCT) feed is specified in the
following print job and the Bypass Tray has not been closed, the "Please
close the Bypass Tray" message displays.
When either the "Please open the Bypass Tray" or the "No Paper. Please
add xx paper to Bypass Tray." message displays and the user does not
respond within the timeout period specified on this screen, the Bypass Tray
print job is canceled and the next print job begins printing.
USING THE CONTROL PANEL
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