• Code: 041-210, 041-211
• Description: STM NVM Out-Of-Order/ STM NVM R/W Error [STM NVM Out-Of-Order] The NVM of the STM is malfunctioning. [STM NVM R/W Error] Unable to perform NVM Read / Write for the STM.
• Remedy: 1. Turn the power OFF and ON. 2. If the problem persists, replace the STM PWB. (PL 10.6)

• Code: 042-325, 042-614
• Description: Main Motor Rotation Error/ Main Motor Rotation Warning [Main Motor Rotation Error] The Main Drive Motor revolution failure was detected. When the Lock Up (Main Drive Motor Fail) signal of the Motor Drive output was monitored at the specified time interval after a certain time has passed since the Main Drive Motor operation had started, it was found to have failed 5 times in a row. [Main Motor Rotation Warning] The Main Drive Motor revolution failure was detected. When the Lock Up (Main Drive Motor Fail) signal of the Motor Drive output was monitored at the specified time interval after a certain time has passed since the Main Drive Motor operation had started, it was found to have failed 2 times in a row.
• Remedy: Enter the CE Mode and turn ON the Output Check [042-001] (Main Drive Motor). Does the Main Drive Motor rotate? Y↓N→Check the power supply line (+24VDC, +5VDC) of the Main Drive Motor. Is the power supply of the Main Drive Motor normal? Y↓N→Check the power supply circuit to the Main Drive Motor. Turn OFF the power and check the following: • The connection between the Main Drive Motor J202 and the ESS/MCU PWB J403 for open circuit, short circuit, and poor contact. • The Drive Gear for wear, damage, and bearing blockage. • The Main Drive Motor for loading. If no problem is found, replace the following parts in sequence: • Main Drive Motor (PL 3.1) • ESS/MCU PWB (PL 18.1) Press [Stop] and turn OFF the power. Check the connection between the Main Drive Motor J202-8 and the ESS/MCU PWB J403-5 for open circuit, short circuit, and poor contact. If no problem is found, replace the following parts in sequence: • ESS/MCU PWB (PL 18.1) • Main Drive Motor (PL 3.1)

• Code: 045-310
• Description: Image Ready Error Unable to send the Image-valid signal cannot within the specified time. NOTE: When the attempt to expand the image has failed, [016-776 Marker Code Detection Fail] occurs after the recover operation.
• Remedy: 1. Check the USB Cable (Local) for poor connection. 2. If no problem is found, replace the ESS/MCU PWB. (PL 18.1)

• Code: 045-313
• Description: IOT Logic Fail The IOT Software error was detected.
• Remedy: 1. Turn the power OFF and ON. 2. Install the correct version of the IOT firmware. 3. If the problem persists, replace the ESS/MCU PWB. (PL 18.1)

• Code: 061-321
• Description: ROS Motor Fail The number of rotation of the ROS Motor did not come within the standard range within the specified time (5 s) after the ROS Motor On.
• Remedy: 1. Turn the power OFF and ON. 2. Check whether the Drum Cartridge is installed. 3. Check the ROS Motor (Output Check [061-001]) for operation failure. 4. Check the LD +5VDC power supply of the LD PWB J140 pin-8. 5. If no problem is found, replace the following parts in sequence: • ROS Assembly (PL 2.1) • ESS/MCU PWB (PL 18.1)

• Code: 061-325
• Description: No SOS Fail. After the detection of ROS Motor Ready (steady rotation), the SOS interval was detected to be longer than the reference value 5 times in a row.
• Remedy: 1. Turn the power OFF and ON. 2. Check whether the Drum Cartridge is installed. 3. Turn OFF the power and check the connections between the ESS/MCU PWB J410, J411 and the LD PWB J140, J160 for open circuits, short circuits, and poor contacts. 4. If no problem is found, replace the following parts in sequence: • ROS Assembly (PL 2.1) • ESS/MCU PWB (PL 18.1)

• Code: 062-277
• Description: DADF Communication Fail Transmission cannot be established between the ESS/MCU PWB and the DADF PWB.
• Remedy: 1. Turn the power OFF and ON. 2. Turn OFF the power and check the connections between the ESS/MCU PWB J421 and the DADF PWB J751, J752 for open circuits, short circuits, and poor contacts. 3. If no problem is found, replace the following parts in sequence: • DADF PWB (PL 56.2) • ESS/MCU PWB (PL 18.1)

• Code: 062-311
• Description: IIT Software Logic Fail A software error was detected at the ESS/MCU PWB.
• Remedy: 1. Turn the power OFF and ON. 2. Update the software version to the latest one. 3. If no problem is found, replace the ESS/MCU PWB. (PL 18.1)