Ricoh B222 Manuale utente
B222/B224
SERVICE MANUAL
002825MIU (rev. 11/28/06)
SC Table
B222/B224 4-14 SM
4.4 SC TABLE
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Exposure lamp error
-001: Shading at AGC
-002: Shading at scanning
The peak white level is less than 64/255 digits (8 bits) when scanning
the shading plate. (The shading data peak does not reach the specified
threshold)
Exposure lamp defective
Lamp stabilizer defective
Exposure lamp connector defective
Standard white plate dirty
Scanner mirror or scanner lens out of position or dirty
SBU defective
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.
6. Replace the SBU.
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.
120 D
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SC Table
SM 4-15 B222/B224
Trouble-
shooting
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Scanner motor driver defective
Scanner motor defective
Harness between SIO board and scanner motor disconnected
Scanner HP sensor defective
Harness between SBU and HP sensor disconnected
1. Check the cable connection between the SIO board and scanner
motor.
2. Check the cable connection between the SBU 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 SBU 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 SBU and HP sensor.
3. Replace the scanner motor.
4. Replace the HP sensor.
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SC Table
B222/B224 4-16 SM
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.
Defective SBU
141 D
Replace the SBU.
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
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 IPU.
4. Replace the exposure lamp.
5. Replace the SBU board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
144 SBU communication error
SBU connection error
The SBU connection cannot be detected at power on or recovery from
the energy save mode.
-001 D
Insufficient power supply for SBU
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SC Table
SM 4-17 B222/B224
Trouble-
shooting
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective SBU
Defective harness
Defective detection port on the BCU
1. Replace the harness.
2. Replace the SBU.
3. Replace the BCU.
SBU serial communication error
The power ON of the SBU is not detected.
Defective SIO
Defective harness
Defective detection port on the BCU
-002 D
1. Replace the harness.
2. Replace the SIO.
3. Replace the BCU.
GASBU reset error
The serial communication does not work.
Defective SBU
Defective detection circuit on the BCU
Defective harness
-003 D
1. Replace the SBU.
2. Replace the BCU.
3. Replace the harness.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
IPU error161 D
The error result of self-diagnostic by the Taurus (ASIC on the IPU) is
detected.
SC Table
B222/B224 4-18 SM
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective IPU
Defective connection between IPU and SBU
1. Check the connection between IPU and SBU.
2. Replace the IPU.
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.
NVRAM defective
BCU replaced without original NVRAM
195 D
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 Table
SM 4-19 B222/B224
Trouble-
shooting
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 IPU.
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)
Polygon motor error 3: XSCRDY signal error
204 D
The SCRDY_N signal goes HIGH (inactive) while the laser diode is
firing.
SC Table
B222/B224 4-20 SM
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 IPU
- -
1. Replace the harness of the LD board.
2. Replace the laser optics housing unit.
3. Replace the IPU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
220 D Laser synchronizing detection error: start position [K]: LD0
221 D Laser synchronizing detection error: start position [K]: LD1
222 D Laser synchronizing detection error: start position [Y]: LD0
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SC Table
SM 4-21 B222/B224
Trouble-
shooting
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
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 IPU
- -
1. Check the connectors.
2. Replace the laser-synchronizing detector.
3. Replace the LDB.
4. Replace the IPU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
FGATE ON error: Bk
230 D
The PFGATE ON signal does not assert within 5 seconds after
processing the image in normal job or MUSIC for start position [K].
Defective ASIC (Lupus)
Poor connection between controller and IPU.
Defective IPU
SC Table
B222/B224 4-22 SM
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
1. Check the connection between the controller board and the IPU.
2. Replace the IPU.
3. Replace the controller board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
FGATE OFF error: Bk
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.
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