• Code: 197
• Description: DFGATE error
  The DFGEATE signal has already been asserted at the original scan.
• Causes: • ADF interface cable defective • SBCU board defective • Mismatched firmware between the SBCU board and ADF

• Code: 198
• Description: Memory address error
  The IPU board does not receive the memory address from the controller board.
• Causes: • Mismatched firmware between the SBCU board and controller board • Controller defective • SBCU defective • IPU board defective

• Code: 199
• Description: DF scanning finish error
  The original does not finish scanning with in 1 minute
• Causes: • ADF interface cable defective • SBCU board defective • Mismatched firmware between the SBCU board and ADF

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

• Code: 320
• Description: Polygon motor error
  The polygon motor does not reach its operating speed within 10 seconds after the polygon motor on signal, or the lock signal is not detected for more than 200 ms continuously during operation.
• Causes: • Polygon mirror motor defective • Poor connection between the polygon mirror motor driver and the SBCU board • SBCU board defective

• Code: 322
• Description: Laser synchronization error
  The main scan synchronization detector board cannot detect the laser synchronization signal for more than 10 consecutive 50 ms intervals.
• Causes: • Poor connection between the laser synchronization detector board and the SBCU board • Laser synchronization detector board out of position • Laser synchronization detector board defective • SBCU board defective • LD unit defective

• Code: 323
• Description: LD drive current over
  The LD drive board applies more than 100 mA to the LD.
• Causes: • LD unit defective (not enough power, due to aging) • Poor connection between the LD unit and the SBCU board • SBCU board defective

• Code: 390
• Description: TD sensor error
  The TD sensor outputs less than 0.5V or more than 4.0V 10 times consecutively during copying.
• Causes: • TD sensor abnormal • Poor connection of the PCU