Ricoh 2400L Operator's Manual page 761

TRANSMISSION
Operating the Machine with Restricted Access Switched On
If you have switched Restricted Access on, the display is as shown below when
the machine is in standby mode.
Before you can use the machine, you must enter your personal code that you
have already registered in the machine. See page 66 for how to store Personal
Codes.
1. Enter your personal code.
Example: 7 3 6 2 from the ten key pad.
2. Press Yes. After a second, the normal standby display will appear, and you
can use the machine. If the normal standby display does not appear, you
entered a personal code that is not stored in the machine.
If you decide that you do not wish to use the machine now, you should return the
machine to Restricted Access standby mode. To do this, either:
Insert a page into the document feeder and remove it immediately.
Press Function twice.
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ADVANCED FEATURES
READY 100% 10:00AM
PERSONAL CODE:tttt