Ricoh M022 Service Manual page 650

6. Troubleshooting
No. Type
142 D
6
No. Type
144 D
No. Type
161 D
648
CÓPIA NÃO CONTROLADA
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 defective
• Exposure lamp defective
• Lamp stabilizer defective
• Scanner motor defective
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 scanner motor.
6. Replace the SBU.
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 IPU
1. Replace the harness.
2. Replace the SBU.
3. Replace the IPU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
IPU error
CÓPIA NÃO CONTROLADA