Ricoh V-C3 D081 Field Service Manual page 650

3. Appendix: Service Call Conditions
SC141 D
3
SC142 D
SC144 D
SC161
72
• Scanner motor harness loose, broken, defective
• Scanner motor defective
• Scanner HP sensor disconnected, defective
• SIOB defective
Black level detection error
During AGC the value for black level was not within ±3 of the prescribed value.
• SBU defective
• Harness defective
• Check harnesses between SBU and IPU
• IPU defective
• VBCU defective
White level detection error
During AGC the value for white level was not within -7 of the prescribed value.
• Exposure lamp defective
• Harness disconnected, damaged
• Dirty exposure glass, optics
• Scanner motor, drive assembly defective
• SBU board defective
SBU communication error
When the machine is switched on, or when the machine returns to full operation from
the energy save mode, the machine can not access the SBU register, or the SBU
register values are abnormal.
Note: The ASIC IDs read during automatic adjustment of the SBU can be displayed
with SP4600.
• SBU harness loose, disconnected, defective
• SBU board defective
• VBCU defective
D IPU error