• Code: 322
• Description: Laser synchronization error
  The main scan synchronization detector board cannot detect the laser synchronization signal for more than 5 consecutive 100 ms intervals.
• Causes: • Poor connection between the laser unit and the BICU board • Damaged cable between BICU and laser unit • Laser unit • BICU board

• Code: 350
• Description: ID sensor error (In-process)
  Vsg adjustment error Vsp error Vsg error Vsg-Vsp error TD sensor error
• Causes: • Dirt on the ID sensor • ID sensor not installed at the correct angle. • Defective ID sensor • Defective PCU • Development roller is not rotating

• Code: 351
• Description: ID sensor : Vsg measurement error (In-process) (D158/D159)
  When the ID sensor detects that Vsg is 5 V and LED drive current is minimum (PWM=0).
• Causes: • Defective ID sensor • Disconnection of the harness to the ID sensor • Bad electrical contact of the ID sensor connector • Defective BCU • Defective laser unit • Defective developer density • Defective high-voltage power pack • Dirty ID sensor

• Code: 353
• Description: ID sensor : Auto adjustment value error (In-process) (D158/D159)
  When the ID sensor is adjusting Vsg automatically.
• Causes: • Defective ID sensor • Disconnection of the harness to the ID sensor • Bad electrical contact of the ID sensor connector • Defective BCU • Defective laser unit • Defective developer density • Defective high-voltage power pack • Dirty ID sensor

• Code: 354
• Description: ID sensor : Auto adjustment time-out (In-process) (D158/D159)
  When the ID sensor is adjusting Vsg automatically.
• Causes: • Defective ID sensor • Disconnection of the harness to the ID sensor • Bad electrical contact of the ID sensor connector • Defective BCU • Defective laser unit • Defective developer density • Defective high-voltage power pack • Dirty ID sensor

• Code: 355
• Description: P sensor error (D158/D159)
  SC350-354 happen during normal operation. This error isn't displayed on the panel but is left in the error log.
• Causes: • Defective ID sensor • Disconnection of the harness to the ID sensor • Bad electrical contact of the ID sensor connector • Defective BCU • Defective laser unit • Defective developer density • Defective high-voltage power pack • Dirty ID sensor

• Code: 389
• Description: TD sensor error (D158/D159)
  Detected the following value TD sensor output value < 0.2V TD sensor output value > 4.0V 10 times in series.
  
• Causes: • Defective TD sensor • Bad contact of the connector to the TD sensor

• Code: 390
• Description: TD sensor error
  The TD sensor outputs less than 0.2 V or more than 4.0 V 10 times consecutively during copying.
• Causes: • TD sensor abnormal • Poor connection of the PCU