Ricoh D017 Service Manual page 380

White level correction error
142 D
White level correction could not be set properly during automatic
adjustment.
Harnesses at SBU, IPU, BCU loose, broken, defective
Spurious electrical noise on power supply line
White plate dirty or missing
Anti-condensation heater (option) in scanner unit not operating
Exposure lamp harness, loose, broken, defective
Exposure lamp defective
Lamp stabilizer harness loose, broken, defective
Lamp stabilizer defective
SBU defective
IPU defective
BCU defective
SIO Defective
SBU auto adjust error
143 C
The machine could not acquire the white or black peak level setting at
power on.
Exposure lamp, lamp stabilizer harness connection loose, broken,
defective
Exposure lamp defective
Lamp stabilizer defective
Spurious electrical noise on power supply line
White plate dirty or missing
Anti-condensation heater (option) in scanner unit not operating
Harness connection at SBU, iPU, BCU, SIO, loose, broken, defective
SBU defective
IPU defective
BCU defective
SIO Defective
SM Appendix
Service Call Conditions
3-5 D017/D018/D019/D020/D084/D085