• Code: 101
• Description: Exposure Lamp Error
  The standard white level was not detected properly when scanning the white plate.
• Causes: • Exposure lamp defective
  • Exposure lamp stabilizer defective
  • Exposure lamp connector defective
  • Dirty scanner mirror or scanner mirror out of position
  • SBU board defective
  • SBU connector defective
  • Lens block out of position
  • Incorrect position or width of white plate scanning (SP4015)

• Code: 120
• Description: Scanner home position error 1
  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 home position sensor connector defective
  • Scanner drive motor connector defective
  • BICU board defective

• Code: 121
• Description: Scanner home position error 2
  The scanner home position sensor does not detect the on condition during initialization or copying.
• Causes: • Scanner home position sensor defective
  • Scanner drive motor defective
  • Scanner home position sensor connector defective
  • Scanner drive motor connector defective
  • BICU board defective

• Code: 143
• Description: SBU white/black level correction error
  The automatic SBU adjustment has failed to correct the black level. The automatic SBU adjustment has failed to correct the white level twenty times consecutively.
• Causes: • Exposure lamp defective
  • Dirty white plate
  • Incorrect position or width of white plate scanning (SP4015)
  • BICU board defective
  • SBU board defective

• Code: 144
• Description: Communication Error between BICU and SBU
  The BICU board cannot detect the SBU connect signal.
• Causes: • The flat cable between the BICU board and the SBU has a poor connection
  • The flat cable between the BICU board and the SBU is damaged
  • BICU board defective
  • SBU defective

• Code: 145
• Description: Automatic SBU adjustment error
  During the automatic SBU adjustment, the machine detects that the white level read from the white plate or paper is out of range. (SP4015)
• Causes: • Exposure lamp defective
  • Dirty white plate
  • Incorrect position or width of white plate scanning (SP4015)
  • BICU board defective
  • SBU board defective

• Code: 302
• Description: Charge roller current leak
  A current leak signal for the charge roller is detected.
• Causes: • Charge roller damaged
  • High voltage supply board defective
  • Poor connection of the PCU

• Code: 320
• Description: Polygonal mirror motor error
  The polygon mirror motor does not reach operating speed within 10 seconds after the motor ON signal is sent, or does not turn on within one of the 200 ms check intervals during operation.
• Causes: • Polygon mirror motor defective
  • Poor connection between the polygonal mirror motor driver and the BICU board
  • Damaged cable between BICU and polygonal mirror motor driver
  • BICU board defective