Ricoh D009 Service Manual page 230

SC Tables: SC1xx
Scanner home position error 2
The scanner home position sensor does not detect the "ON" condition during
initialization or copying.
SIB or scanner motor drive board defective
Scanner motor defective
121 D
Harness between SIB and scanner drive motor disconnected
Harness between SIB and scanner drive motor power source
disconnected
Scanner HP sensor defective
Harness between SIB and scanner HP sensor disconnected
Scanner wire, timing belt, pulley, or carriage defective
Black level detection error
The black level cannot be adjusted within the target value during the zero
141 D
clamp.
Defective SBU
White level detection error
The white level cannot be adjusted within the target during auto gain control.
142 D
Dirty exposure glass or optics section
SBU board defective
Exposure lamp defective
Lamp stabilizer defective
143 C SBU auto adjust error
One of the following occurred:
When the machine was powered on, automatic adjustment of the SBU
failed.
Automatic white density adjustment failed when reading standard white
plate.
D009/D011/D012/D013 4-4 SM