Ricoh Di-C1 Manual page 111

Hard Disk Removal (2)
If the customer uses the DOS unit option, this option must
be set up again after a new hard disk is installed.
If the HDD encryption unit is installed, the user must copy
the encryption key from the controller to the new hard disk.
This is not a service procedure, so it is not in the service
manual.
Any SDK applications must be installed again.
It is not necessary to install the VM card option again.
If the customer is using the optional Browser Unit, this
option must be installed again. You must use the same SD
card as when the browser unit was installed first.
Slide 111
The browser unit SD card is linked to its machine (the machine serial number
is registered on the SD card). So a card that has already been installed on
one machine cannot be used on another.
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