• Code: E248 0001
• Description: Error in access to backup data for Reader (reading error at power-on)
• Causes: The Reader-related adjustment values could not be read.
• Remedy: 1. Clear the backup RAM of RCON. Execute COPIER > FUNCTION > CLEAR > RCON. 2. Enter all the values written on the service label in service mode again. 3. Turn OFF and then ON the main power.

• Code: E250 0000
• Description: Error in the One-Touch Key Cover Sensor
• Causes: Error in the One-Touch Key Cover Sensor
• Remedy: 1. Check the One-Touch Key Cover Sensor. 2. Turn OFF and then ON the power. 3. Replace the Control Panel.

• Code: E351 0000
• Description: System error
• Causes: System error
• Remedy: 1. Install the set of the controller firmware. 2. Replace the Main Controller PCB.

• Code: E732 0000
• Description: Scanner communication error
• Causes: Scanner communication error
• Remedy: 1. Check the connector connection between the Engine Controller PCB and the Main Controller PCB. 2. Install the set of the controller firmware. 3. Replace the Main Controller PCB. 4. Replace the Engine Controller PCB.

• Code: E733 0000
• Description: Printer communication error
• Causes: Communication error between the Engine Controller PCB and the Main Controller PCB occurred.
• Remedy: 1. Check the connector connection between the Engine Controller PCB and the Main Controller PCB. 2. Install the set of the controller firmware. 3. Replace the Main Controller PCB. 4. Replace the Engine Controller PCB.

• Code: E736 0000
• Description: Communication error with CCU/modem
• Causes: Communication error with CCU/modem NCU PCB type error
• Remedy: 1. Install the set of the controller firmware. 2. Replace the NCU PCB. 3. Replace the Main Controller PCB.

• Code: E736 0001
• Description: Error in ROM for backing up fax data
• Causes: An error occurred in ROM for backing up fax data
• Remedy: 1. Install the set of the controller firmware. 2. Replace the Main Controller PCB.

• Code: E744 0001
• Description: Language file version error
• Causes: Language file version was not matched with the main program.
• Remedy: Install the set of the controller firmware.