• Code: 354
• Description: ID sensor timeout abnormal at adjustment
  Vsg fell out of the adjustment target range (4.0 +- -0.2V) at the start of Vsg checking after 20 sec.
• Causes: • ID sensor connector or harness loose, broken, or defective • ID sensor defective • IOB defective • HVPS defective • ID sensor dirty

• Code: 390
• Description: TD sensor error: Abnormal measurement
  The TD sensor output voltage was less than 0.5V, or more than 4.8V 10 consecutive times during copying. -or- The output was less than 2.5V after a new PCDU was installed.
• Causes: • TD sensor connector or harness loose, broken, defective • TD sensor defective • IOB) defective • Toner supply defective (confirm that the toner seal strip has been removed from toner cartridge)

• Code: 391
• Description: TD sensor error: Auto adjust error
  During automatic adjustment of the TD sensor, output voltage was less than 1.8V, or more than 4.8V during TD sensor initial setting
• Causes: • TD sensor connector or harness loose, broken, defective • TD sensor defective • IOB defective • Toner supply defective (confirm that the toner seal strip has been removed from toner cartridge)

• Code: 395
• Description: Development output abnormal
  A development bias leak signal was detected. High voltage output to the development unit exceeded the upper limit (65%) for 60 ms.
• Causes: • Poor connection at the development bias terminal • HVPS connectors or harnesses loose, broken, defective • HVPS defective

• Code: 401
• Description: Transfer roller leak detected
  A transfer roller current leak signal is detected.
• Causes: • HVPS board defective • Poor cable connection or defective cable • Transfer connector defective

• Code: 402
• Description: Transfer roller open error
  The transfer roller current feedback signal is not detected.
• Causes: • HVPS defective • Transfer connector cable defective • Transfer connector defective • Poor PCU connection

• Code: 403
• Description: Transfer belt position sensor error
  The transfer belt position sensor did not activate after the transfer belt contact clutch was switched on twice and rotated once.
• Causes: • Main motor malfunction • Transfer belt contact clutch defective • Transfer belt position sensor harness or connector loose, broken, defective • Transfer belt position sensor defective

• Code: 405
• Description: Transfer belt error
  The transfer belt did not move away from the drum during the ID sensor pattern check.
• Causes: • Main motor malfunction • Transfer belt contact clutch defective • Transfer belt position sensor harness or connector loose, broken, defective • Transfer belt position sensor defective