• Code: SC101
• Description: Exposure lamp error
  The standard white level was not detected properly when scanning the white plate.
• Causes: • Exposure lamp defective • Lamp regulator defective • Exposure lamp connector defective • Dirty standard white plate • Dirty scanner mirror or scanner mirror out of position • SBU board defective • SBU connector defective • Lens block out of position

• Code: SC120
• Description: Scanner home position error 1
  The scanner home position sensor does not detect the on condition during initialization or copying.
• Causes: • Scanner home position sensor defective • Scanner motor defective • Scanner motor drive board defective • Scanner home position sensor connector defective • Scanner drive motor connector defective

• Code: SC121
• Description: Scanner home position error 2
  The scanner home position sensor does not detect the off condition during initialization or copying.
• Causes: • Scanner home position sensor defective • Scanner drive motor defective • Scanner motor drive board defective • Scanner home position sensor connector defective • Scanner drive motor connector defective

• Code: SC124
• Description: Scanner motor encoder signal error
  No encoder signal from the scanner motor
• Causes: • Scanner motor connector defective • Scanner motor defective • MCU defective • Scanner wire, timing belt, pulley out of position • PSU defective

• Code: SC125
• Description: Scanner motor speed error 1
  The scanner stops before the scanner HP sensor is on when returning. The scanner speed when the scanner HP sensor turns on is slower than the specified speed.
• Causes: • Scanner motor defective • MCU defective • Too much load on scanner drive

• Code: SC126
• Description: Scanner motor speed error 2
  The scanner overruns the scanner HP sensor by more than 10 mm when returning.
• Causes: • Scanner motor defective • MCU defective • Too small load on scanner drive

• Code: SC127
• Description: Scanner motor encoder rotating direction error
  The scanner moves in the opposite direction from the instructed direction when initializing.
• Causes: • Scanner motor defective • MCU defective

• Code: SC128
• Description: Scanner motor start error
  The scanner motor speed does not reach the target speed until starting to read the original.
• Causes: • Scanner motor defective • MCU defective • PSU defective • Too much load on scanner drive