How do I fix...? SC817 error in Ricoh MPC3002?

sc 672 Controller-to-operation panel communication error at startup
Possible Causes
? Controller stalled
? Controller board installed incorrectly
? Controller board defective
? Operation panel connector loose or defective
? The controller is not completely shutdown when you turn the main
switch off.
Check the setting of SP5875-001. If the setting is set to "1 (OFF)", change it
to "0 (ON)".

there's no error code like that
http://www.unitedtechsonline.citymax.com/page/page/4653767.htm

101: EXPOSURE LAMP PROBLEM

120:SCANNER HOME PROBLEM

121:SCANNER HOME

124:SCANNER MOTOR PROBLEM

125:SCANNER MOTOR PROBLEM

126:SCANNER MOTOR PROBLEM

127:SCANNER MOTOR PROBLEM

129:SCANNER MOTOR PROBLEM

130:SICU / SBU PROBLEMS

300:CHARGE CORONA PROBLEMS

301:CHARGE CORONA PROBLEM

303:CHARGE GRID PROBLEM

304:CHARGE GRID PROBLEM

305:CHARGER UNIT WIRE CLEANER PROBLEM

306:CHARGER UNIT WIRE CLEANER PROBLEM

310-316:DRUM POTENTIAL SENSOR ERROR ISSUES

321:LASER UNIT WRITE PROBLEM

322:LASER UNIT 1 SYNCH. PROBLEM

323:LASER UNIT DRIVE PROBLEM

335-338:POLYGON MOTOR PROBLEMS

340-342:TONER DENSITY SENSOR ERROR ISSUES

345:DEVELOPER BIAS PROBLEM

350-355:IMAGE DENSITY SENSOR PROBLEMS

360:HARD DISK 1 PROBLEM

361:HARD DISK 2 PROBLEM

362:HARD DISK 1 PROBLEM

363:HARD DISK 2 PROBLEM

364:HARD DISK 1 PROBLEM

365:HARD DISK 2 PROBLEM

366:HARD DISK 1 PROBLEM

367:HARD DISK 2 PROBLEM

370-375:IMAGE COMPRESSION ERROR

376-377: SICU,IMAGE COMPRESSION ERROR

380-383:IMAGE DATA TRANSFER PROBLEM(SICU, SBU,PRINT CONTROLLER)

384-385:IMAGE DATA TRANSFER PROBLEM WHEN TANDEM IS USED(SBU,INTERFACE

BOARD,SICU,PRINT CONTROLLER)

390:TANDEM IMAGE DATA TRANSFER ERROR(NOISE,SICU,INTERFACE BOARD)

391-392:IMAGE STORAGE ADDRESS ERROR(SICU391-01)

395:CD-R/RW ERROR, INTERFACE BOARD ISSUES

397:CD ACCESS ERROR

398:CD-R/RW DATA ERROR

400:TRANSFER BIAS ROLLER ISSUES

401:TRANSFER ROLLER

430:QUENCHING LAMP ERROR

440:DRUM MOTOR LOCKED

441:DEVELOPER MOTOT LOCKED

491:LASER COOLING FAN LOCKED

495:TONER BOTTLE PROBLEM

496:TONER COLLECTOR BOTTLE PROBLEM

501:LIFT PROBLEMS FOR TRAY 1

502:LIFT PROBLEMS FOR TRAY 2

503:LIFT PROBLEMS FOR TRAY 3

504:LCT 1ST TRAY PICKUP OR LIFT PROBLEM

505:LCT 2ND TRAY PICKUP OR LIFT PROBLEM

506:LCT 3RD TRAY PICKUP OR LIFT PROBLEM

510:PAPER FEED MOTOR PROBLEMS

511:LCT MOTOR PROBLEM

515:TANDEM REAR FENCE MOTOR PROBLEM

520-521:DUPLEX JUGGER MOTOR PROBLEMS

531:FUSING DUPLEX MOTOR LOCKED

532:RELAY MOTOR LOCK

541:OPEN FUSER THERMISTOR

542:LOW FUSER TEMPERATURE

543:HIGH FUSER TEMPERATURE

544:HIGH FUSER TEMPERATURE

545:HIGH FUSER TEMPERATURE

546:LOW FUSER TEMPERATURE

547:ZERO CROSS PROBLEM

550:WEB EXPIRED

591:TONER SUPPLY MOTOR PROBLEMS

592:TONER BANK MOTOR PROBLEMS

601:SBICU TO SBU COMMUNICATION PROBLEMS

602:SBICU TO HARD DISK DRIVE BOARD COMMUNICATION PROBLEMS

620-622:SBICU TO ADF COMMUNICATION PROBLEMS

625-626:BCU TO FINISHER COMMUNICATION PROBLEMS

630:LINE ADOPTER TO CSS CENTER COMMUNICATION PROBLEMS

640-645:BCH TO SICU COMMUNICATION PROBLEMS

646:SICU PROBLEM

650-653:COUNTER ERROR JAPAN

701:ADF P/U ROLLER PROBLEMS

702:ADF FEED MOTOR PROBLEM

703:ADF TRANSPORT BELT MOTOR PROBLEM

704:ADF EXIT MOTOR PROBLEM

705:ADF ORIGINAL TABLE LIFT ISSUES

720:FINISHER LOWER TRANSPORT MOTOR ISSUES

722:FINISHER JOGGER MOTOR ISSUES

724:FINISHER STAPLER HAMMER PROBLEMS

725:FINISHER STACK EXIT MOTOR PROBLEMS

726:FINISHER SHIFT MOTOR PROBLEMS

727:FINISHER STAPLER ROTATION PROBLEMS

729:FINISHER PUNCH MOTOR PROBLEMS

730:FINISHER STAPLER MOTOR PROBLEMS

735:FINISHER PAPER STACK PLATE MOTOR PROBLEMS

736:FINISHER EXIT GUIDE MOTOR PROBLEMS

737:FINISHER FULL STAPLER HOPPER

738:FINISHER SHIFT TRAY LIFT MOTOR PROBLEMS

739:FINISHER FOLDER PLATE MOTOR ERROR

740:FINISHER FRONT SADDLE STITCH STAPLER MOTOR PROBLEMS

741:FINISHER REAR SADDLE STITCH STAPLER MOTOR PROBLEMS

742:FINISHER JOGGER SIDE FENCE MOTOR

750:COVER INTERPOSER BOTTOM PLATE MOTOR PROBLEMS

800:VIDEO OUT TRANSFER,CONTROLLER BOARD

804:VIDEO OUT TRANSFER,CONTROLLER BOARD

818:OPTIONAL BOARD,CONTROLLER BOARD, SYSTEM PROGRAM

819:BAD SOFTWARE

820:CONTROLLER BOARD OR SOFTWARE

821:CONTROLLER BOARD

822:HDD PROBLEM

823:NIB, CONTROLLER BOARD

824:CONTROLLER BOARD, NVRAM

825:NVRAM ERROR

826:NVRAM

827:CONTROLLER BOARD, RAM

828:SOFTWARE,ROM,CONTROLLER

829:RAM, CONTROLLER

835:CONTROLLER,CENTRONIC LOOPBACK CONNECTOR

836-837:FONT DEVICE

838:CONTROLLER BOARD

850:IP ADDRESS,CONTROLLER BOARD,NIB

851:1394 I/F CONNECTIONB,I/F INTERFACE,CONTROLLER BOARD

860-861:HDD

862:HDD BAD SECTORS

863:HDD

864:DATA TRANSFER ISSUES

865:HDD

900:NVRAM PROBLEM.ELECTRICAL COPY COUNTER

901:MECHANICAL COUNTER ISSUES

921:IMB, BICU FAILING

922:IMB, BICU FAILING

924:DRAM,BICU,IMB FAILING

925:BICU, IMB FAILING

926:BICU, IMB FAILING

951:F-GATE SIGNAL ERROR PROBLEMS

953:SCANNER IMAGE SETTING ERROR ISSUES

954:PRINTER IMAGE SETTING ERROR ISSUES

955:MEMORY SETTING ERROR ISSUES

964:PRINTER READY ERROR ISSUES

966:POLYGON MOTOR PROBLEM

970:SCANNER READY ERROR

980:HDD ACCESS ERROR

981:BICU, NVRAM

982:HDD CONSTRUCTION ERROR

984-987:HDD DATA TRANSFER ERROR

990:SOFTWARE PERFORMANCE ERROR

991:REBOOT SOFTWARE ERROR

997-998:DIMM, RAM ERROR

999:PROGRAM DOWNLOAD ERRORS

SC 672 is a controller error. So possible is tat the controller board is defective, in best case can be only the ram memory dimm's or the HDD but in most cases the controller board is dead.

SC995 is a controller board not compatible error. You have replaced the controller board with the 2022 or 2032 board. All other boards and parts for this machines are the same. Only the controller board is different for all three models. But if you have not change the controller board and this SC995 appeared then the controller board is defective and need to be replaced.

Sorry not possible to be done. All other parts and boards are same on the both models. Even the RAM and the printer\scanner SD card is the same.NV ram is the same. But the controller boards are different for both machines. You will get SC995 if you put a mp4000sp controller board in mp5000sp. SC 995 is compatibility error for the controller board it self.

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
672 D
Controller start up error
? After the machine is powered on, the communication between the
controller and the operation panel is not established, or
communication with controller is interrupted after a normal startup.
? After startup reset of the operation panel, the attention code (FDH)
or the attention acknowledge code (FEH) is not sent from the
controller within 30 seconds.
? After the controller issues a command to check the communication
line with the controller at 30-second intervals, the controller fails to
respond twice.
1. Controller stalled
2. Controller board installed incorrectly
3. Controller board defective
4. Operation panel connector loose or defective
5. The controller is not completely shut down when the main switch is
turned off.
? Check the setting of SP5-875-001. If the setting is set to "1 (OFF)",
change it to "0 (ON)"

Code: SC829 Code SC829 Description Self-diagnostic error 9: Optional RAM Causes • Change the controller board or the optional RAM DIMM Sounds like an engineer is needed!

Are you clearing the code via service mode reset?

hi
this error happened when :
Incorrect Function DIMM installed in Slot #2 on Controller PCB. (Slot #2 is for PostScript Option only) so you can:
Reload System Firmware.
Replace Controller PCB
for fix that.

Sc 865-01