• Code: 101
• Description: Exposure lamp error
  The standard white level was not detected properly when scanning the white plate.
• Causes: • Exposure lamp defective • Lamp stabilizer defective • Exposure lamp connector defective • Standard white plate dirty • Scanner mirror or scanner lens out of position or dirty • SBU defective

• Code: 120
• Description: Scanner home position error 1
  The scanner home position sensor does not detect the on condition during initialization or copying.
• Causes: • Scanner drive motor defective • Scanner motor defective • Harness between SBCU and scanner drive motor disconnected • Harness between SBCU and scanner drive motor power source disconnected • Scanner HP sensor defective • Harness between SBCU and HP sensor disconnected • Scanner wire, timing belt, pulley, or carriage defective

• Code: 121
• Description: Scanner home position error 2
  The scanner home position sensor does not detect the off condition during initialization.
• Causes: • SIB or scanner drive motor defective • Scanner motor defective • Harness between SBCU and scanner drive motor disconnected • Harness between SBCU and scanner drive motor power source disconnected • Scanner HP sensor defective • Harness between SBCU and HP sensor disconnected • Scanner wire, timing belt, pulley, or carriage defective

• Code: 122
• Description: Scanner HP Sensor œ Error 1
  The HP sensor remains on while the carriage is returning to the home position.
• Causes: • SBCU, scanner motor drive board defective • Scanner motor defective • Harness between the SBCU, scanner motor drive board and scanner motor disconnected • HP sensor defective • Harness between SBCU and HP sensor disconnected. • Scanner wire, timing belt, pulley, or carriage installation incorrect

• Code: 123
• Description: Scanner HP sensor œ Error 2
  The HP sensor does not switch on after the carriage has returned to the home position.
• Causes: • SBCU, scanner motor drive board defective • Scanner motor defective • Harness between the SBCU, scanner motor drive board and scanner motor disconnected • HP sensor defective • Harness between SBCU and HP sensor disconnected. • Scanner wire, timing belt, pulley, or carriage installation incorrect

• Code: 144
• Description: SBU connection error
  The IPU does not detect the SBU connection signal.
• Causes: Cable between SBU and IPU board disconnected.

• Code: 192
• Description: Automatic SBU adjustment error
  An error is detected during automatic SBU adjustment (SP4-428)
• Causes: • SBU defective • SBCU board defective • Exposure lamp stabilizer defective • Exposure lamp defective • Dirty white plate

• Code: 193
• Description: Image transfer error
  The IPU board does not finish within 1 minute after the image data has been transferred to the controller board.
• Causes: • IPU board defective • Controller board defective • Video controller defective