Ricoh D065 Service Manual page 478

636 CTL SD Card Error
Expanded authentication module error
There is no expanded authentication module in the machine.
The SD card or the file of the expanded authentication module is
broken.
There is no DESS module in the machine.
01 D
No expanded authentication module
Defective SD card
No DESS module
1. Install the expanded authentication module.
2. Install the SD card.
3. Install the DESS module.
Version error
The version of the expanded authentication module is not correct.
02 D
Incorrect module version
1. Install the correct file of the expanded authentication module.
Engine-to-controller communication error
The controller sent a frame to the main machine engine but there was no
response as demanded by RAPI protocol. The frame was sent 3 times at
641 B
100 ms intervals. This SC was issued after the 3rd attempt failed.
Examine the connection between the controller and the engine
board.
Replace the engine board if the error is frequent.
SM Appendix
Service Call Conditions
3-33
GW
D062/D063/D065/D066