• Code: 220-01
• Description: Laser synchronizing detection error: start position LD1: Bk
  The laser synchronizing detection signal for the start position of the LDB is not output for the prescribed time after the LDB unit turns on while the polygon motor is rotating normally
• Causes: Broken I/F harness of synchronizing detection unit. Defective synchronizing detection board. Defective LDB. Defective BICU
• Remedy: 1. Turn off and on the main power switch. 2. Replace the I/F harness. 3. Replace the BICU.

• Code: 220-02
• Description: Laser synchronizing detection error: start position LD1: Ma
  The laser synchronizing detection signal for the start position of the LDB is not output for the prescribed time after the LDB unit turns on while the polygon motor is rotating normally
• Causes: Broken I/F harness of synchronizing detection unit. Defective synchronizing detection board. Defective LDB. Defective BICU
• Remedy: 1. Turn off and on the main power switch. 2. Replace the I/F harness. 3. Replace the BICU.

• Code: 230-01
• Description: FGATE ON error: Bk
  The PFGATE ON signal does not assert within 5 seconds after processing start timing for black (-01), cyan (-02), magenta (-03) or yellow (-04) color writing.
• 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: 230-02
• Description: FGATE ON error: Cy
  The PFGATE ON signal does not assert within 5 seconds after processing start timing for black (-01), cyan (-02), magenta (-03) or yellow (-04) color writing.
• 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: 230-03
• Description: FGATE ON error: Ma
  The PFGATE ON signal does not assert within 5 seconds after processing start timing for black (-01), cyan (-02), magenta (-03) or yellow (-04) color writing.
• 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: 230-04
• Description: FGATE ON error: Ye
  The PFGATE ON signal does not assert within 5 seconds after processing start timing for black (-01), cyan (-02), magenta (-03) or yellow (-04) color writing.
• 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: 231-01
• Description: FGATE OFF error: Bk
  The PFGATE ON signal still asserts within 5 seconds after processing finish timing for black (-01), cyan (-02), magenta (-03) or yellow (-04) color writing. 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.

• Code: 231-02
• Description: FGATE OFF error: Cy
  The PFGATE ON signal still asserts within 5 seconds after processing finish timing for black (-01), cyan (-02), magenta (-03) or yellow (-04) color writing. 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.