Ricoh D027 User manual

D027/D029
SERVICE MANUAL
(Book 1 of 2) 003984MIU
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SC Tables
SM 3-5 D027/D029 APPENDICES
Appendix
Service Call
Conditions
3.1.2 SERVICE CALL TABLES - 1
SC1xxx: Scanning
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Exposure lamp error
The peak white level is less than 64/255 digits (8 bits) when scanning
the shading plate.
Exposure lamp defective
Lamp stabilizer defective
Exposure lamp connector defective
Standard white plate dirty
Scanner mirror or scanner lens out of position or dirty
101 D
1. Check and clean the scanner mirror(s) and scanner lens.
2. Check and clean the shading plate.
3. Replace the exposure lamp.
4. Replace the lamp stabilizer.
5. Replace the scanner mirror(s) or scanner lens.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Scanner home position error 1
The scanner home position sensor does not detect the “OFF” condition
during operation.
Scanner motor driver defective
Scanner motor defective
Harness between SIO board and scanner motor disconnected
Scanner HP sensor defective
Harness between SIO and HP sensor disconnected
120 D
1. Check the cable connection between the SIO board and scanner
motor.
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SC Tables
D027/D029 APPENDICES 3-6 SM
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
2. Check the cable connection between the SIO and HP sensor.
3. Replace the scanner motor.
4. Replace the HP sensor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Scanner home position error 2
The scanner home position sensor does not detect the “ON” condition
during operation.
Scanner motor driver defective
Scanner motor defective
Harness between SIO board and scanner motor disconnected
Scanner HP sensor defective
Harness between SIO and HP sensor disconnected
121 D
1. Check the cable connection between the SIO board and scanner
motor.
2. Check the cable connection between the SIO and HP sensor.
3. Replace the scanner motor.
4. Replace the HP sensor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Black level detection error
The black level cannot be adjusted within the target value during the
zero clamp.
Harness disconnected
Defective SBU
141 D
1. Check the cable connection
2. Replace the SBU.

SC Tables
SM 3-7 D027/D029 APPENDICES
Appendix
Service Call
Conditions
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
White level detection error
The white level cannot be adjusted within the target during auto gain
control.
Dirty exposure glass or optics section
SBU board defective
Exposure lamp defective
Lamp stabilizer defective
Scanner motor defective
142 D
1. Clean the exposure glass, white plate, mirrors, and lens.
2. Check if the exposure lamp is lit during initialization.
3. Check the harness connection between SBU and BICU.
4. Replace the exposure lamp.
5. Replace the scanner motor.
6. Replace the SBU board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SBU communication error
The SBU connection cannot be detected at power on or recovery from
the energy save mode.
Defective SBU
Defective harness
Defective detection port on the BICU
144 D
1. Replace the harness.
2. Replace the SBU.
3. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
161 IPU error
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SC Tables
D027/D029 APPENDICES 3-8 SM
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
The error result of self-diagnostic by the ASIC on the BICU is detected.
Defective BICU
Defective connection between BICU and SBU
001 D
1. Check the connection between BICU and SBU.
2. Replace the BICU.
Detected an error during an access to the Ri.
Defective BICU board
002 D
1. Replace the BICU board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Copy Data Security Unit error
The copy data security board is not detected when the copy data
security function is set "ON" with the initial setting.
A device check error occurs when the copy data security function is
set "ON" with the initial setting.
Incorrect installation of the copy data security board
Defective copy data security board
165 D
1. Reinstall the copy data security board.
2. Replace the copy data security board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Serial Number Mismatch
Serial number stored in the memory does not have the correct
code.
195 D
NVRAM defective
BICU replaced without original NVRAM

SC Tables
SM 3-9 D027/D029 APPENDICES
Appendix
Service Call
Conditions
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
1. Check the serial number with SP5-811-002.
2. If the stored serial number is incorrect, contact your supervisor.
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SC Tables
D027/D029 APPENDICES 3-10 SM
3.1.3 SERVICE CALL TABLES - 2
SC Codes Group 2: Exposure
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Polygon motor error 1: ON timeout
The polygon mirror motor does not reach the targeted operating speed
within the specified time after turning on or changing speed
Defective or disconnected harness to polygon motor driver board
Defective polygon motor driver board
Defective polygon motor.
202 D
1. Replace the polygon motor.
2. Replace the laser optics housing unit.
3. Replace the harness.
4. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Polygon motor error 2: OFF timeout
The polygon mirror motor does leave the READY status within 3
seconds after the polygon motor switches off.
Disconnected or defective harness to polygon motor driver board
Defective polygon motor driver board
Defective polygon motor
203 D
1. Check or replace the harness.
2. Replace the polygon motor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
204 D Polygon motor error 3: XSCRDY signal error

SC Tables
SM 3-11 D027/D029 APPENDICES
Appendix
Service Call
Conditions
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
The SCRDY_N signal goes HIGH (inactive) while the laser diode is
firing.
Disconnected or defective harness to polygon motor driver board
Defective polygon motor
Defective polygon motor driver board
1. Check or replace the harness.
2. Replace the polygon motor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
210 C Laser synchronizing detection error: end position [K]
211 C Laser synchronizing detection error: end position [Y]
212 C Laser synchronizing detection error: end position [M]
213 C Laser synchronizing detection error: end position [C]
The laser synchronizing detection signal for the end position of LDB [K],
[Y], [M], [C] is not detected for one second after the LDB unit turned on
when detecting the main scan magnification.
Disconnected or defective harness to synchronizing detector for
end position
Defective synchronizing detector board
Defective LD board or driver
Defective BICU
- -
1. Replace the harness of the LD board.
2. Replace the laser optics housing unit.
3. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
220 D Laser synchronizing detection error: start position [K]: LD0
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SC Tables
D027/D029 APPENDICES 3-12 SM
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
221 D Laser synchronizing detection error: start position [K]: LD1
222 D Laser synchronizing detection error: start position [Y]: LD0
223 D Laser synchronizing detection error: start position [Y]: LD1
224 D Laser synchronizing detection error: start position [M]: LD0
225 D Laser synchronizing detection error: start position [M]: LD1
226 D Laser synchronizing detection error: start position [C]: LD0
227 D Laser synchronizing detection error: start position [C]: LD1
The laser synchronizing detection signal for the start position of the
LDB [K], [Y], [M], [C] is not output for two seconds after LDB unit turns
on while the polygon motor is rotating normally.
Disconnected cable from the laser synchronizing detection unit or
defective connection
Defective laser synchronizing detector
Defective LDB
Defective BICU
- -
1. Check the connectors.
2. Replace the laser-synchronizing detector.
3. Replace the LDB.
4. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
FGATE ON error: K
The PFGATE ON signal does not assert within 5 seconds after
processing the image in normal job or MUSIC for start position [K].
230 D
Defective ASIC (Lupus)
Poor connection between controller and BICU.
Defective BICU

SC Tables
SM 3-13 D027/D029 APPENDICES
Appendix
Service Call
Conditions
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
1. Check the connection between the controller board and the BICU.
2. Replace the BICU.
3. Replace the controller board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
FGATE OFF error: K
The PFGATE ON signal still asserts within 5 seconds after
processing the image in normal job or MUSIC for end position [K].
The PFGATE ON signal still asserts when the next job starts.
231 D
See SC 230 for troubleshooting details.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
FGATE ON error: Y
The PFGATE ON signal does not assert within 5 seconds after
processing the image in normal job or MUSIC for start position [Y].
232 D
See SC 230 for troubleshooting details.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
FGATE OFF error: Y
The PFGATE ON signal still asserts within 5 seconds after
processing the image in normal job or MUSIC for end position [Y].
The PFGATE ON signal still asserts when the next job starts.
233 D
See SC 230 for troubleshooting details.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
234 D FGATE ON error: M
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