• Code: 09
• Display: [Color] toner is empty. Replace toner cartridge
• Description: The lifespan of the color toner cartridge which the arrow indicates is reached.
• Remedy: Install a new toner cartridge.

• Code: 10
• Display: [Side/Main] Door is open. Close it
• Description: The side door or main door is open.
• Remedy: 1. Open and close the door. If the message is not disappeared, check the below steps. 2. Check that the door switch is pushed. 3. Check that the Ui message is chaged by door switch action. 4. Check the door switch signal on EDC mode.

• Code: 10-001
• Display: Memory failure: #10-001. Please turn off then on
• Description: At system booting, the memory is not read.
• Remedy: Replace the memory.

• Code: 10-002
• Display: Fax unit error: #10-002. Please turn off then on
• Description: 1. Fax card is not installed. 2. Fax card is not installed properly. 3. Fax card is out of order. 4. In case that you didn't modem install after installing fax card
• Remedy: 1. Replace the Fax unit. 2. If the problem persists after replacing the Fax unit, replace the Fax unit.

• Code: 10-003
• Display: Hard disk drive error: #10-003. Please turn Off then On
• Description: 1. Hard disk is not installed 2. Hard disk is out of order.
• Remedy: 1. Turn off the power. And reconnect the connector of the Hard disk. 2. If the error message is still displayed, replace the Hard disk. 3. If the problem persists, replace the main board.

• Code: 10-004
• Display: System error: #10-004. Please turn off then on
• Description: Communication error with UI
• Remedy: Check the UI connector. If there is any problem, replace the UI board. If the problem persists, replace the main board.

• Code: 10-012
• Display: Sensor failure: #10-012. Call for service
• Description: Sensor error.
• Remedy: Check the external temperature sensor and main board. If it is defective, replace it.

• Code: 11
• Display: Communication problem occurred with tray2 or Communication problem occurred with tray2(HCF)
• Description: Tray2 or HCF is not installed.
• Remedy: Check the connection between Tray2 and HCF. If there is any problem, replace the tray2 and HCF board. If the problem persists, replace the main board.