Ricoh MPC7500SP

• 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