The BCU detected a right scanner fan lock signal 5 sec. after the machine was
switched on.
If cycling the machine power off/on does not solve the problem:
• Left scanner fan harness connection to the IOB loose, broken, defective
• Left scanner fan defective
• IOB defective
• BCU defective
SC186 B
Gray balance adjustment error
The value for gray balance was detected out of range after gray adjustment.
If cycling the machine power off/on does not solve the problem:
• Clean the white strip
• Clean the CIS glass
• Check the following harnesses for loose, broken, or defective connectors:
1. Xe lamp to lamp regulator
2. Lamp regulator to CIS
3. CIS to IPU
4. CIS to IPU
5. IPU to IOB
• One of the following boards is defective
1. CIS
2. IPU
3. IOB
4. BCU
SC191 A
Original exit roller thermistor error
The original exit roller thermistor reading was abnormal.
• Thermistor connection loose, broken, defective
• Thermistor short
• Harness between thermistor and IOB loose, broken, defective
• IOB defective
• BCU defective
5. Appendix: Service Call Conditions
40
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