Ricoh GR-C1 Series Service Training page 92

The MBU and FCU are combined into one board.
After you replace the FCU, you must transfer the
SRAM data from the old FCU to the new one.
This is done by connecting the old FCU to the
new one with a flat cable.
A flat cable is provided with the new FCU service
part.
The following data will be transferred: TTI, RTI,
CSI, bit switch settings, RAM address settings,
NCU parameter settings
Slide 92
See the fax unit's service manual for the procedure.
Fax Unit (2)
92
GR-C1 Training