• Code: 04-001
• Display: LSU error: #04-001. Please turn off then on
• Description: After LD on, the Laser beam detect signal is not occurred or irregular.
• Remedy: 1. Check the Beam Detecht signal. If there is a BD signal, replace the Main board. If or not, check the LD contol signal. 2. Check the LD Power is normal. 3. If it is normal, check the light receving part.

• Code: 04-002
• Display: LSU error: #04-002. Please turn off then on
• Description: LSU motor does not operate or the drive signal is abnormal.
• Remedy: Check the LSU motor noise. If there is any dirving noise, check the motor ready signal.

• Code: 04-003
• Display: LSU error: #04-003. Please turn off then on
• Description: Yellow LSU motor does not operate.
• Remedy: Check the LSU motor noise. If there is any dirving noise, check the motor signal.

• Code: 04-004
• Display: LSU error: #04-004. Please turn off then on
• Description: After Yellow LD on, the Laser beam detect signal is not occurred or irregular.
• Remedy: 1. Check the Beam Detecht signal. If there is a BD signal, replace the Main board. If or not, check the LD contol signal. 2. Check the LD Power is normal. 3. If it is normal, check the light receving part.

• Code: 04-006
• Display: LSU error: #04-006. Please turn off then on
• Description: Magenta LSU motor does not operate.
• Remedy: Check the LSU motor noise. If there is any dirving noise, check the motor signal.

• Code: 04-007
• Display: LSU error: #04-007. Please turn off then on
• Description: After Magenta LD on, the Laser beam detect signal is not occurred or irregular.
• Remedy: 1. Check the Beam Detecht signal. If there is a BD signal, replace the Main board. If or not, check the LD contol signal. 2. Check the LD Power is normal. 3. If it is normal, check the light receving part.

• Code: 04-009
• Display: LSU error: #04-009. Please turn off then on
• Description: Cyan LSU motor does not operate.
• Remedy: Check the LSU motor noise. If there is any dirving noise, check the motor signal.

• Code: 04-010
• Display: LSU error: #04-010. Please turn off then on
• Description: After Cyan LD on, the Laser beam detect signal is not occurred or irregular.
• Remedy: 1. Check the Beam Detecht signal. If there is a BD signal, replace the Main board. If or not, check the LD contol signal. 2. Check the LD Power is normal. 3. If it is normal, check the light receving part.