• Code: 005-940
• Description: DADF No Original Fail It was detected that the document was pulled out during document feed.
• Remedy: Reload the document.

• Code: 005-948
• Description: SS-Size Mismatch Jam on No Mix-size In No Mix mode, it was detected that a document with a shorter size in Slow Scan (SS) direction was transported from the DADF.
• Remedy: 1. Check the size of the document that was fed by the User. 2. If the error is not cleared, check the following: • The DADF Pre Regi Sensor (Input Check [005-206]) for operation failure. (PL 56.14) • The Document Tray Size Sensor 1/2 (Input Check [005-221/222]) for operation failure. (PL 56.11) 3. If no problem is found, replace the DADF PWB. (PL 56.2)

• Code: 010-311
• Description: Fusing Unit Center Thermistor Defect An open circuit abnormality (the AD value of the STS is equivalent to the open circuit value) of the Heat Roll Center Thermistor was detected.
• Remedy: Turn OFF the power and disconnect the Heat Roll Center Thermistor connector P/J600. Measure the resistance between the Heat Roll Center Thermistor J600 pin-1 and J600 pin-2. Is the resistance infinite? Y↓N→Reconnect the connector P/J600 and measure the resistance between the ESS/MCU PWB J403 pin-1 and J403 pin-2. Is the resistance infinite? Y↓N→Replace the ESS/MCU PWB. (PL 18.1) Check the following connections for open circuits and poor contacts. • Between ESS/MCU PWB J403-1 and Heat Roll Center Thermistor P600-4 • Between ESS/MCU PWB J403-2 and Heat Roll Center Thermistor P600-3 Replace the Fusing Unit. (PL 7.1)

• Code: 010-312
• Description: Fusing Unit Rear Thermistor Defect An open circuit abnormality (the AD value of the STS is equivalent to the open circuit value) of the Heat Roll Rear Thermistor was detected.
• Remedy: Turn OFF the power and disconnect the Heat Roll Rear Thermistor connector P/J600. Measure the resistance between the Heat Roll Rear Thermistor J600 pin-3 and J600 pin-4. Is the resistance infinite? Y↓N→Reconnect the connector P/J600 and measure the resistance between the ESS/MCU PWB J403 pin-3 and J403 pin-4. Is the resistance infinite? Y↓N→Replace the ESS/MCU PWB. (PL 18.1) Check the following connections for open circuits and poor contacts. • Between ESS/MCU PWB J403-3 and Heat Roll Rear Thermistor P600-2 • Between ESS/MCU PWB J403-4 and Heat Roll Rear Thermistor P600-1 Replace the Fusing Unit. (PL 7.1)

• 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 18.1) • ESS/MCU PWB (PL 18.1)

• 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 18.1) • ESS/MCU PWB (PL 18.1)

• Code: 010-379
• Description: Fusing Unit Hot Not Ready Return Time Fail The time taken to recover from High Temperature Not Ready state has exceeded the specified time.
• Remedy: 1. Turn the power OFF and ON. 2. Turn OFF the power and check the following: • The Fusing Unit for improper installation. • The connection between the Fusing Unit P10 and the LVPS J511 for open circuit, short circuit, and poor contact. • The connection between the Fusing Unit P600 and the ESS/MCU PWB J403 for open circuit, short circuit, and poor contact. • The connection between the ESS/MCU PWB J401 and the LVPS J513 for open circuit, short circuit, and poor contact. • The Heat Roll for wound up, stuck paper. 3. If the problem persists, replace the following parts in sequence: • Fusing Unit (PL 7.1) • LVPS (PL 18.1) • ESS/MCU PWB (PL 18.1)

• 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 18.1)