• Code: 195
• Description: Serial Number Mismatch
  • Serial number stored in the memory does not have the correct code.
• Causes: • NVRAM defective • EGB replaced without original NVRAM
• Remedy: 1. Check the serial number. 2. If the stored serial number is incorrect, contact your supervisor.

• Code: 202
• Description: Polygon motor error 1: ON timeout
  The polygon mirror motor does not reach the targeted operating speed within the specified time after turning on or changing speed
• Causes: • Defective or disconnected harness to polygon motor driver board • Defective polygon motor driver board • Defective polygon motor.
• Remedy: 1. Replace the interface harness of the laser optics unit. 2. Replace the laser optics unit. 3. Replace the EGB (Engine Board).

• Code: 203
• Description: Polygon motor error 2: OFF timeout
  The polygon mirror motor does leave the READY status within 3 seconds after the polygon motor switches off.
• Causes: • Disconnected or defective harness to polygon motor driver board • Defective polygon motor driver board • Defective polygon motor.
• Remedy: 1. Replace the interface harness of the laser optics unit. 2. Replace the laser optics unit. 3. Replace the EGB (Engine Board).

• Code: 204
• Description: Polygon motor error 3: XSCRDY signal error
  The SCRDY_N signal goes HIGH (inactive) while the laser diode is firing.
• Causes: • Disconnected or defective harness to polygon motor driver board • Defective polygon motor • Defective polygon motor driver board.
• Remedy: 1. Replace the interface harness of the laser optics unit. 2. Replace the laser optics unit. 3. Replace the EGB (Engine Board).

• Code: 220
• Description: Laser Synchronizing Detection Error: [K]/[Y]
  The laser synchronizing detection signal for LDB [K]/[Y] is not output after the LDB unit has turned on while the polygon motor is rotating normally.
• Causes: • Disconnected cable from the laser synchronizing detection unit or defective connection • Defective laser synchronizing detector • Defective LDB • Defective EGB
• Remedy: 1. Check the connectors. 2. Replace the laser optics unit. 3. Replace the EGB.

• Code: 224
• Description: Laser Synchronizing Detection Error: [M]/[C]
  The laser synchronizing detection signal for LDB [M]/[C] is not output after the LDB unit has turned on while the polygon motor is rotating normally.
• Causes: • Disconnected cable from the laser synchronizing detection unit or defective connection • Defective laser synchronizing detector • Defective LDB • Defective EGB
• Remedy: 1. Check the connectors. 2. Replace the laser optics unit. 3. Replace the EGB.

• Code: 240
• Description: LD error
  The IPU (EGB) detects a problem at the LD unit.
• Causes: • Worn-out LD • Disconnected or broken harness of the LD.
• Remedy: 1. Replace the laser optics unit.

• Code: 300
• Description: High voltage power output error
  The measured voltage is not correct when the EGB measures each charge output (charge, development, image transfer belt unit, and transfer unit).
• Causes: • Disconnected or defective high voltage harness • Defective high voltage power supply • Defective EGB
• Remedy: 1. Check or replace the harnesses. 2. Replace the high voltage power supply board 3. Replace the EGB.