• Code: 195
• Description: Serial Number Error
  The serial number stored in the memory (EGB) is not correct.
• Causes: EEPROM defective. EGB replaced without original EEPROM 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 5 sec. after turning on or changing speed
• Causes:

• Code: 203
• Description: Polygon motor error 2: OFF timeout
  The polygon mirror motor does not leave the READY status within 3 sec. after the polygon motor switched off.
• Causes:

• Code: 204
• Description: Polygon motor error 3: XSCRDY signal error
  The SCRDY_N signal remains HIGH for 200 ms while the LD unit is firing.
• Causes: Polygon motor/driver board harness loose or disconnected. Polygon motor/driver board defective. Laser optics unit defective. IPU (EGB) defective 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:

• Code: 222
• 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 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. 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 1. Check or replace the harnesses. 2. Replace the high voltage power supply board 3. Replace the EGB.