Ricoh D131 Service Manual page 506

Counter device error 3
A backup RAM error was returned by the counter device.
SC634 B
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Counter device error 4
A backup battery error was returned by the counter device.
SC635 B
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SC636 D SD Card Error
01 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.
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02 Version error
SM Appendix
Counter device control board defective
Backup battery of counter device defective
Replace the counter device.
Counter device control board defective
Backup battery of counter device defective
Replace the counter device.
No expanded authentication module
Defective SD card
Defective file in the authentication module
No DESS module
Install the expanded authentication module.
Install the SD card.
Install the DESS module.
In the SSP mode set SP5-401-160 to 0.
In the SSP mode, set SP5-401-161 to 0.
Cycle the machine off/on.
Execute SP5-876-1 (security all clear).
If this is a mass-produced machine, replace the NV.
2-39
SC600: Data Communication
CTL
CTL
CTL
D131/D132/D133