• Code: 010-320
• Description: Over Heat Temperature Fail A high temperature error was detected at the Center Thermistor (245 degrees C or higher) or the Rear Thermistor (270 degrees C or higher). NOTE: To clear this Fail, first remove the cause, next clear the value of NVM [744-040] (Over Heat Temp Fail) to '0', and then turn the power OFF then ON. The relationship between the displayed value and the Thermistor that detected the high temperature error is as follows: • 0: Normal • 1: High Temperature Error of Heat Roll Center Thermistor • 2: High Temperature Error of Heat Roll Rear Thermistor
• Remedy: Check the following: • The Center Thermistor or the Rear Thermistor for dropped parts, sensor contamination, and foreign substances blocking the sensor. • The Heat Roll for wound up, stuck paper. • The Heat Roll Center Thermistor (Analog Monitor [010-050]) for operation failure. • The Heat Roll Rear Thermistor (Analog Monitor [010-051]) for operation failure. • The Heater Rod for operation failure. If no problem is found, replace the following parts in sequence: • Fusing Unit (PL 7.1) • LVPS (PL 18.3) • ESS/MCU PWB (PL 18.3)

• Code: 010-327
• Description: Fusing Unit On Time Fail Any of the following was detected: • The Heater Rod did not turn OFF within the specified time after the Heater Rod On. • After power ON, the temperature of the Fusing Unit does not reach the specified value within the specified time.
• Remedy: Check the following: • The Heater Rod for operation failure. • The connection between the LVPS J511 and the Fusing Unit P10 for open circuit and poor contact • The Center Thermistor for dropped parts, sensor contamination, and foreign substances blocking the sensor. • The Heat Roll for wound up, stuck paper. If no problem is found, replace the following parts in sequence: • Fusing Unit (PL 7.1) • LVPS (PL 18.3) • ESS/MCU PWB (PL 18.3)

• Code: 010-379
• Description: Fusing Unit Hot Not Ready Return Time Fail The High Temperature Not Ready state is not cleared even after the Recovery Time (NVM) has passed.
• Remedy: • Turn the power OFF and ON. If the problem persists, the Fusing Unit could be malfunctioning. Replace the Fusing Unit. (PL 7.1)

• Code: 010-392
• Description: NOHAD Fan Defect NOHAD Fan failure was detected. When the NOHAD Fan Fail signal indicating an abnormality of the Fan was monitored at the specified time interval, it was found to have failed the specified number of times or higher in a row.
• Remedy: 1. Check the NOHAD Fan (Output Check [042-002]) for operation failure. (PL 4.1) 2. Check the NOHAD Fan for foreign substances. 3. If no problem is found, replace the ESS/MCU PWB (PL 18.3).

• Code: 010-602
• Description: Over Temp Cooling Mode Unable to print because the temperature in the machine has risen above the specification value
• Remedy: Wait until the temperature in the machine has dropped.

• Code: 016-346
• Description: Fax Parameter Incorrect Parameter Error received from the Fax Board. Self Diagnostic: Parameter Error received.
• Remedy: 1. Turn the power OFF and ON. 2. Print out the Error Report and then replace the Fax PWB (PL 18.5). 3. Re-send the Fax or request for the customer to receive one.

• Code: 016-372
• Description: File Access Error Unable to access the files that had been stored in the device for some reasons (access refused, etc.).
• Remedy: 1. Turn the power OFF and ON. 2. Install a firmware with the correct version. 3. If the problem persists, replace the ESS/MCU PWB. (PL 18.3)

• Code: 016-500
• Description: Controller Download Flash Write Error Unable to write the Download File of Controller Main into the Flash ROM.
• Remedy: 1. Turn the power OFF and ON. (If the contents of the Flash ROM is corrupted, the machine will boot up in Emergency Boot Download mode after Power ON.) 2. If the problem persists, replace the ESS/MCU PWB (PL 18.3).