Service manual

Service Call Conditions
M052/M053/M054 6-4 SM
141 D
Black level correction error
Black level correction could not be set properly during automatic
adjustment.
 Harnesses at the SBU or BICU loose, broken, defective.
 SBU defective
142 D
White level correction error
White level correction could not be set properly during automatic
adjustment.
 Harnesses at SBU or BICU loose, broken, defective
 Anti-condensation heater (option) in scanner unit not operating
 Exposure lamp harness, loose, broken, defective
 Exposure lamp defective
 Scanner drive error
 SBU defective
143 C
SBU auto adjust error
The machine could not acquire the white or black peak level setting at
power on.
 Harnesses at SBU or BICU loose, broken, defective
 Anti-condensation heater (option) in scanner unit not operating
 Exposure lamp harness, loose, broken, defective
 Exposure lamp defective
 Scanner drive error
 SBU defective