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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