• Code: SC101
• Description: Exposure lamp error
  The white level peak did not reach the prescribed threshold when the white plate was scanned.
• Causes: • Dirty optics • Dirty white plate • Exposure lamp defective • Exposure lamp does not turn on • Lamp stabilizer defective • High voltage line leak • SIB defective • SBU defective

• Code: SC120
• Description: Scanner home position error 1
  The scanner home position sensor did not detect the home position (did not go OFF) after the scanner moved forward 20 mm..
• Causes: • Scanner motor defective • Scanner HP sensor defective • Harness between scanner motor and SIOB disconnected or broken. • SIOB defective

• Code: SC121
• Description: Scanner home position error 2
  The scanner home position sensor did not go ON after the scanner moved forward 6 mm and the feeler entered the HP sensor.
• Causes: • Scanner motor harness loose, broken, defective • Scanner motor defective • Scanner HP sensor disconnected, defective • SIOB defective

• Code: SC141
• Description: Black level detection error
  During AGC the value for black level was not within ±3 of the prescribed value.
• Causes: • SBU defective • Harness defective • Check harnesses between SBU and IPU • IPU defective • VBCU defective

• Code: SC142
• Description: White level detection error
  During AGC the value for white level was not within -7 of the prescribed value.
• Causes: • Exposure lamp defective • Harness disconnected, damaged • Dirty exposure glass, optics • Scanner motor, drive assembly defective • SBU board defective

• Code: SC143
• Description: SBU Auto Adjust Error
  At power on the automatic white level adjustment failed.
• Causes: • Clean the white plate • Clean the optics and lenses • Check the connectors between the SBU and IPU. • Replace the SBU • Replace the IPU • Replace the VBCU • Replace the exposure lamp

• Code: SC144
• Description: 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.
• Causes: • SBU harness loose, disconnected, defective • SBU board defective • VBCU defective

• Code: SC161
• Description: IPU error
  Communication error between IPU, SBU, and VBCU.
• Causes: • Check harness connections between SBU and IPU/VBCU • IPU defective • VBCU defective