• Code: 212
• Description: Laser synchronizing detection error: end position [M]
  The laser synchronizing detection signal for the end position of LDB [K], [Y], [M], [C] is not detected for one second after the LDB unit turned on when detecting the main scan magnification
• Causes: Disconnected or defective harness to synchronizing detector for end position. Defective synchronizing detector board. Defective LD board or driver. Defective BICU.
• Remedy: 1. Replace the harness of the LD board. 2. Replace the laser optics housing unit. 3. Replace the BICU.

• Code: 213
• Description: Laser synchronizing detection error: end position [C]
  The laser synchronizing detection signal for the end position of LDB [K], [Y], [M], [C] is not detected for one second after the LDB unit turned on when detecting the main scan magnification
• Causes: Disconnected or defective harness to synchronizing detector for end position. Defective synchronizing detector board. Defective LD board or driver. Defective BICU.
• Remedy: 1. Replace the harness of the LD board. 2. Replace the laser optics housing unit. 3. Replace the BICU.

• Code: 220
• Description: Laser synchronizing detection error: start position [K]
  The laser synchronizing detection signal for the start position of the LDB [K], [Y], [M], [C] is not output for two seconds after LDB unit turns 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 BICU.
• Remedy: 1. Check the connectors. 2. Replace the laser-synchronizing detector. 3. Replace the LDB. 4. Replace the BICU.

• Code: 222
• Description: Laser synchronizing detection error: start position [Y]
  The laser synchronizing detection signal for the start position of the LDB [K], [Y], [M], [C] is not output for two seconds after LDB unit turns 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 BICU.
• Remedy: 1. Check the connectors. 2. Replace the laser-synchronizing detector. 3. Replace the LDB. 4. Replace the BICU.

• Code: 224
• Description: Laser synchronizing detection error: start position [M]
  The laser synchronizing detection signal for the start position of the LDB [K], [Y], [M], [C] is not output for two seconds after LDB unit turns 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 BICU.
• Remedy: 1. Check the connectors. 2. Replace the laser-synchronizing detector. 3. Replace the LDB. 4. Replace the BICU.

• Code: 226
• Description: Laser synchronizing detection error: start position [C]
  The laser synchronizing detection signal for the start position of the LDB [K], [Y], [M], [C] is not output for two seconds after LDB unit turns 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 BICU.
• Remedy: 1. Check the connectors. 2. Replace the laser-synchronizing detector. 3. Replace the LDB. 4. Replace the BICU.

• Code: 230
• Description: FGATE ON error: Bk
  The PFGATE ON signal does not assert within 5 seconds after processing the image in normal job or MUSIC for start position [K].
• Causes: Defective ASIC (Lupus). Poor connection between controller and BICU. Defective BICU.
• Remedy: 1. Check the connection between the controller board and the BICU. 2. Replace the BICU. 3. Replace the controller board.

• Code: 231
• Description: FGATE OFF error: Bk
  The PFGATE ON signal still asserts within 5 seconds after processing the image in normal job or MUSIC for end position [K] The PFGATE ON signal still asserts when the next job starts.
• Causes: Defective ASIC (Lupus). Poor connection between controller and BICU. Defective BICU.
• Remedy: 1. Check the connection between the controller board and the BICU. 2. Replace the BICU. 3. Replace the controller board.