• Code: 3310
• Description: DP CIS AGC error In case a normal input could not be obtained from the CIS at AGC. (M36 ppm model only)
• Remedy: DP CIS 6. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. DPCIS - Main/Engine PWB(YC4) 7. Replace DPCIS and execute U411.

• Code: 3500
• Description: Scanner and ASIC communication error A communication error is detected. (Read back values are different.)
• Remedy: CIS 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. CIS - Main/Engine PWB(YC18) 2. If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 3. If the LED is not lit, replace the scanner carriage and execute U411.
  Main/Engine PWB 1. Check the engine firmware and upgrade to the latest version if necessary. 2. Replace the main/engine PWB.

• Code: 4000
• Description: Polygon motor startup error After the polygon motor starts, the motor stable signal is not turned ON after 10 s.
• Remedy: Polygon motor 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. Polygon motor - Main/Engine PWB(YC20) 2. If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 3. Replace the LSU.
  Main/Engine PWB 1. Check the engine firmware and upgrade to the latest version if necessary. 2. Replace the main/engine PWB.

• Code: 4010
• Description: Polygon motor steady-state error After the polygon motor stabilization, the motor stable signal is turned OFF for consecutive 1 s or more.
• Remedy: Polygon motor 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. Polygon motor - Main/Engine PWB (YC20) 2. If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 3. Replace the LSU.
  Main/Engine PWB 1. Check the engine firmware and upgrade to the latest version if necessary. 2. Replace the main/engine PWB.

• Code: 4101
• Description: BD initialization error(K) In case the BD signal is not detected for 1s after starting the polygon motor drive.
• Remedy: Laser scanner unit (LSU) 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. LSU - Main/Engine PWB (YC21) 2. If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 3. Replace the LSU.
  Main/Engine PWB 1. Check the controller firmware and engine firmware, and upgrade to the latest version. 2. Replace the main/engine PWB.

• Code: 4102
• Description: BD initialization error(C) In case the BD signal is not detected for 1s after starting the polygon motor drive.
• Remedy: Laser scanner unit (LSU) 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. LSU - Main/Engine PWB(YC21)If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 2. Replace the LSU.
  Main/Engine PWB 1. Check the controller firmware and engine firmware, and upgrade to the latest version. 2. Replace the main/engine PWB.

• Code: 4103
• Description: BD initialization error(M) In case the BD signal is not detected for 1s after starting the polygon motor drive.
• Remedy: Laser scanner unit (LSU) 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. LSU - Main/Engine PWB (YC21) 2. If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 3. Replace the LSU.
  Main/Engine PWB 1. Check the controller firmware and engine firmware, and upgrade to the latest version. 2. Replace the main/engine PWB.

• Code: 4104
• Description: BD initialization error(Y) In case the BD signal is not detected for 1s after starting the polygon motor drive.
• Remedy: Laser scanner unit (LSU) 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. LSU - Main/Engine PWB (YC21) 2. If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 3. Replace the LSU.
  Main/Engine PWB 1. Check the controller firmware and engine firmware, and upgrade to the latest version. 2. Replace the main/engine PWB.