Xerox Phaser 6121 MFP error and solving error codes

Xerox Phaser 6121 MFP error and solving error codes

– Compatible Printer model: Xerox Phaser 6121 MFP
– Xerox Phaser 6121 MFP Error Codes with quick guides:

• Code: 0001
• Display: Main motor failure CODE (001) Turn power off, on
• Description: Main Motor Failure The Main Motor lock signal remains HIGH for a predetermined consecutive period of time while the Main Motor remains energized.
• Causes: • Main Motor, PL9.1.6 • Engine Control Board, PL13.0.20 • Power Supply, PL13.0.17
• Troubleshooting Guides: 1 Check the Engine Control Board connector P/J8. Is the connector seated properly? Go to step 2. Reseat the connector. If the problem persists, go to step 2. 2 Check the Main Motor for proper positioning. Is the motor engaged with the gears? Go to step 3. Reseat the motor drive properly. If the problem persists, go to step 3. 3 Check the operation of the Main Motor. Is the motor faulty? Replace the motor. If the problem persists, go to step 4. Go to step 4. 4 On the Engine Control Board, check P/J2 at pins 1, 5, and 7 for +24V. Are the voltages present? Go to step 5. Go to step 6. 5 Replace the Engine Control Board. Does the problem persist? Go to step 5. Complete. 6 Replace the Power Supply. Complete.

• Code: 001B
• Display: Toner rack failure CODE (001B) Turn power off, on
• Description: Toner Rack Failure
• Causes: • Rack Positioning Sensor, PL5.1.12 • Engine Control Board, PL13.0.20
• Troubleshooting Guides: 1 Check the Rack Motor connector P/J5 on the Engine Control Board. Is the connector seated properly? Go to step 2. Reseat the connector. If the problem persists, go to step 2. 2 Check the Engine Control Board connector P/J5. Is the connector seated properly? Go to step 3. Reseat the connector. If the problem persists, go to step 3. 3 Check the Rack Positioning Sensor at PJ5-11. Is the sensor on? Go to step 4. Replace the sensor. If the problem persists, go to step 4. 4 Replace the Engine Control Board. Complete.

• Code: 0045
• Display: Scanner fan failure CODE (0045) Turn power off, on
• Description: Scanner Fan Failure • The Exit Tray Cooling Fan Motor does not rotate evenly even after the lapse of a given period of time while it is being started. • The fan motor lock signal remains HIGH for a given period of consecutive time while the exit tray cooling fan motor is being rotated.
• Causes: • Engine Control Board, PL13.0.20 • Image Processor Board, PL2.0.4
• Troubleshooting Guides: 1 Check the Engine Control Board connector P/J24. Is the connector seated properly? Go to step 2. Reseat the connector. If the problem persists, go to step 2. 2 Clean the Exit Tray Cooling Fan air intake Check the fan for possible overload and correct as necessary. Does the problem persist? Go to step 3. Complete. 3 Replace the Exit Tray Cooling Fan. NOTE During replacement, check if the fan is obstructed and correct if necessary. If the problem persists, replace the fan. Does the problem persist? Go to step 3. Complete. 4 Replace the Image Processor Board. Complete.

• Code: 004A
• Display: Duplex fan failure CODE (004A) Turn power off, on
• Description: Duplex Unit Fan Failure The Duplex Unit Fan Motor lock signal remains HIGH for a predetermined consecutive period of time while the cooling fan motor remains energized.
• Causes: • Engine Control Board, PL13.0.20 • Duplex Unit, PL14.1
• Troubleshooting Guides: 1 Check the Engine Control Board connector P/J21. Is the connector seated properly? Go to step 2. Reseat the connector. If the problem persists, go to step 2. 2 Replace the Engine Control Board. Does the problem persist? Go to step 3. Complete. 3 Replace the Duplex Unit. Complete.

• Code: 004C
• Display: Exhaust fan failure CODE (004C) Turn power off, on
• Description: Exhaust Fan Failure The Ventilation Fan Motor does not rotate evenly even after the lapse of a given period of time while it is starting.
• Causes: • Ventilation Fan Motor, PL7.2.20 • Engine Control Board, PL13.0.20 • Power Supply, PL13.0.17
• Troubleshooting Guides: 1 Check the Engine Control Board connector P/J16. Is the connector seated properly? Go to step 2. Reseat the connector. If the problem persists, go to step 2. 2 Check the operation of the Ventilation Fan Motor. Is the motor faulty? Replace the motor. If the problem persists, go to step 5. Go to step 5. 3 On the Engine Control Board, check for +24 VDC at P/J2-1, 5, and 7. Check for +5 VDC at P/J2-2. Are the voltages present and within specification? Go to step 4. Replace the Power Supply. If the problem persists, go to step 4. 4 Replace the Engine Control Board. Complete.

• Code: 004E
• Display: LVPS fan failure CODE (004E) Turn power off, on
• Description: LVPS Fan Failure • The Power Supply Cooling Fan Motor does not rotate evenly even after the lapse of a given period of time while it is being started. • The motor lock signal remains HIGH for a given period of consecutive time while the Power Supply Cooling Fan Motor is being rotated.
• Causes: • Power Supply Cooling Fan Motor, PL12.0.11 • Engine Control Board, PL13.0.20 • Power Supply, PL13.0.17
• Troubleshooting Guides: 1 Check the High Voltage Board connectors CN1 and CN2, and the Engine Control Board connector P/J17. Are the connectors seated properly? Go to step 2. Reseat the connector(s). If the problem persists, go to step 2. 2 Check the Power Supply Cooling Fan Motor control signals at CN2. Are the signals operating correctly? Replace the motor. If the problem persists, go to step 3. Go to step 3. 3 Check the Power Supply Cooling Fan Motor control signals at PJ17 on the Engine Control Board. Are the control signals operating correctly? Replace the High Voltage Board. If the problem persists, go to step 4. Go to step 4. 4 On the Engine Control Board, check for +24 VDC at P/J2-1, 5, and 7. Check for +5 VDC at P/J2-2. Are the voltages present and within specification? Go to step 5. Replace the Power Supply. If the problem persists, go to step 5. 5 Replace the Engine Control Board. Complete.

• Code: 0092
• Display: Trans. belt failure CODE (0092) Turn power off, on
• Description: Transfer Belt Failure The belt positioning sensor does not detect the transfer belt position detection hole a second time even after the lapse of a predetermined period of time after it has detected one while the transfer belt is rotated.
• Causes: • Imaging Unit, PL4.0.13 • Engine Control Board, PL13.0.20
• Troubleshooting Guides: 1 Check the Engine Control Board connector P/J9. Is the connector seated properly? Go to step 2. Reseat the connector. If the problem persists, go to step 2. 2 Replace the Imaging Unit. Does the problem persist? Go to step 3. Complete. 3 Replace the Engine Control Board. Complete.

• Code: 0094
• Display: Trans. roll failure CODE (0094) Turn power off, on
• Description: Transfer Roll Failure Possible causes: • The 2nd Image Transfer Retraction Position Sensor(PS3) is not activated (retracted position) within a given period of time after the retraction sequence of the 2nd transfer roller has been started. • The 2nd Image Transfer Retraction Position Sensor is not deactivated (pressed position) within a given period of time after the pressure sequence of the 2nd transfer roller has been started.
• Causes: • 2nd Image Transfer Retraction Position Sensor (PS3), PL4.0.9 • 2nd Image Transfer Retraction Position Solenoid (SD4), PL7.2.23 • Main Motor, PL9.1.6 • Engine Control Board, PL13.0.20
• Troubleshooting Guides: 1 Check the Main Motor connector CN37. Is the connector seated properly? Go to step 2. Reseat the connector. If the problem persists, go to step 2. 2 Check the Main Motor for proper drive coupling and correct as necessary. Does the problem persist? Go to step 3. Complete. 3 Check the 2nd Image Transfer Retraction Position Solenoid connector CN5. Is the connector seated properly? Go to step 4. Reseat the connector. If the problem persists, go to step 4. 4 Check the 2nd Image Transfer Retraction Position Solenoid for proper drive coupling and correct as necessary. Does the problem persist? Go to step 5. Complete. 5 Check the 2nd Image Transfer Retraction Position Sensor control signal for a voltage change at P/J12-3 on the Engine Control Board. Is the signal operating correctly? Go to step 6. Replace the Engine Control Board. If the problem persists, go to step 6. 6 Replace the 2nd Image Transfer Retraction Position Solenoid. Does the problem persist? Go to step 7. Complete. 7 Replace the 2nd Image Transfer Retraction Position Sensor. Complete.

• Code: 0300, 0310
• Display: Laser motor failure CODE (0300) Turn power off, on
  Laser unit failure CODE (0310) Turn power off, on
• Description: 0300 Laser Motor Failure and 0310 Laser Unit Failure • The Polygon Motor does not rotate evenly even after the lapse of a given period of time after it has been started. • The motor lock signal remains HIGH for a given period of consecutive time while the Polygon Motor is being rotated. • The SOS signal is not detected within a given period of time after the output of the laser has been started.
• Causes: • Laser Unit, PL4.0.13 • Engine Control Board, PL13.0.20 • Power Supply, PL13.0.17
• Troubleshooting Guides: 1 Check the Engine Control Board connectors P/J18 and P/J19. Are the connectors seated properly? Go to step 2. Reseat the connectors. If the problem persists, go to step 2. 2 On the Engine Control Board, check: • P/J19-1 for +24V • P/J18-10 and -11 for +5V Are the voltages present? Go to step 4. Go to step 3. 3 On the Engine Control Board, check P/J2-2 for +5 V. Check P/J2-1, -5, and -7 for +24V. Are the voltages present? Go to step 4. Replace the Power Supply. If the problem persists, go to step 4. 4 Replace the Laser Unit. Does the problem persist? Go to step 3. Complete. 5 Replace the Engine Control Board. Complete.

• Code: 0500, 0503
• Display: Fuser failure CODE (0500) Turn power off, on
  Thermistor failure CODE (0503) Turn power off, on
• Description: 0500 Fuser Failure and 0503 Thermistor Failure The thermistor does not detect the specified temperature and the warm-up cycle is not completed even after the lapse of a given period of time.
• Causes: • Fuser, PL4.0.13 • Engine Control Board, PL13.0.20 • Power Supply, PL13.0.17
• Troubleshooting Guides: 1 Check that the Fuser is installed correctly and reseat it. Does the problem persist? Go to step 2 Complete. 2 Change the Fuser, and then turn the printer on, open the top cover, and press the following keys in this order: 2 > 6 > 2 > 3 > 7. Turn the printer off and then back on. Does the problem persist? Go to step 3. Complete. 3 Replace the Engine Control Board. Does the problem persist? Go to step 4. Complete. 4 Replace the Power Supply. Complete.

• Code: 0502
• Display: Thermistor failure CODE (0502) Turn power off, on
• Description: 0502 Thermistor Failure, 0510 Fuser Failure, and 0520 Fuser Failure 0502 Thermistor Failure The temperature detected by the thermistor does not reach an expected level after the warm-up cycle starts.
• Causes: • Fuser, PL4.0.13 • Engine Control Board, PL13.0.20 • Power Supply, PL13.0.17
• Troubleshooting Guides: 1 Check that the Fuser is installed correctly. Does the problem persist? Go to step 2. Complete. 2 Check the Engine Control Board connectors P/J2, P/J3, and P/J6. Are the connectors seated properly? Go to step 3 Reseat the connectors. If the problem persists, go to step 3. 3 Check the Low Voltage Power Supply connectors CN3, CN5, and CN7. Are the connectors seated properly? Go to step 4. Reseat the connectors. If the problem persists, go to step 4. 4 Replace the Fuser (8-9). Does the problem persist? Go to step 5. Complete. 5 Replace the Engine Control Board. Does the problem persist? Go to step 6. Complete. 6 Replace the Power Supply. Complete.

• Code: 0510
• Display: Fuser failure CODE (0510) Turn power off, on
• Description: 0502 Thermistor Failure, 0510 Fuser Failure, and 0520 Fuser Failure 0510 Fuser Failure The temperature detected by the thermistor remains lower than expected for a given period of time or longer.
• Causes: • Fuser, PL4.0.13 • Engine Control Board, PL13.0.20 • Power Supply, PL13.0.17
• Troubleshooting Guides: 1 Check that the Fuser is installed correctly. Does the problem persist? Go to step 2. Complete. 2 Check the Engine Control Board connectors P/J2, P/J3, and P/J6. Are the connectors seated properly? Go to step 3 Reseat the connectors. If the problem persists, go to step 3. 3 Check the Low Voltage Power Supply connectors CN3, CN5, and CN7. Are the connectors seated properly? Go to step 4. Reseat the connectors. If the problem persists, go to step 4. 4 Replace the Fuser (8-9). Does the problem persist? Go to step 5. Complete. 5 Replace the Engine Control Board. Does the problem persist? Go to step 6. Complete. 6 Replace the Power Supply. Complete.

Solve Xerox Phaser 6121 MFP Error codes

• Code: 0520
• Display: Fuser failure CODE (0520) Turn power off, on
• Description: 0502 Thermistor Failure, 0510 Fuser Failure, and 0520 Fuser Failure 0520 Fuser Failure The temperature detected by the thermistor remains higher than expected for a given period of time or longer.
• Causes: • Fuser, PL4.0.13 • Engine Control Board, PL13.0.20 • Power Supply, PL13.0.17
• Troubleshooting Guides: 1 Check that the Fuser is installed correctly. Does the problem persist? Go to step 2. Complete. 2 Check the Engine Control Board connectors P/J2, P/J3, and P/J6. Are the connectors seated properly? Go to step 3 Reseat the connectors. If the problem persists, go to step 3. 3 Check the Low Voltage Power Supply connectors CN3, CN5, and CN7. Are the connectors seated properly? Go to step 4. Reseat the connectors. If the problem persists, go to step 4. 4 Replace the Fuser (8-9). Does the problem persist? Go to step 5. Complete. 5 Replace the Engine Control Board. Does the problem persist? Go to step 6. Complete. 6 Replace the Power Supply. Complete.

• Code: 0650
• Display: Scanner home failure CODE (0650) Turn power off, on
• Description: Scanner Home Failure • A low motor lock signal is not detected even after the lapse of a predetermined period of time after the Polygon Motor has been started. • The motor lock signal remains HIGH for a predetermined consecutive period of time while the Polygon Motor remains energized.
• Causes: • Engine Control Board, PL13.0.20 • Image Processor Board, PL2.0.4
• Troubleshooting Guides: 1 Check connector P/J2 on the Image Processor Board. Is the connector seated properly? Go to step 2. Reseat the connector. If the problem persists, go to step 2. 2 Replace the Scanner. Does the problem persist? Go to step 3. Complete. 3 Replace the Engine Control Board. Does the problem persist? Go to step 4. Complete. 4 Replace the Power Supply. Complete.

• Code: 0F51
• Display: Waste toner failure CODE (0F51) Turn power off, on
• Description: Waste Toner Failure It is determined that the LED and photo receiver are faulty through a check made when a new imaging cartridge is detected.
• Causes: • Imaging Unit, PL4.0.13 • Engine Control Board, PL13.0.20
• Troubleshooting Guides: 1 Check the Engine Control Board connector P/J9. Is the connector seated properly? Go to step 2 Reseat the connector. If the problem persists, go to step 3. 2 Change the Imaging Unit. Does the problem persist? Go to step 3. Complete. 3 Replace the Engine Control Board. Complete.

• Code: 1038
• Display: Interface failure CODE (1038) Turn power off, on
• Description: Interface Failure. • Engine Control Board to Image Processor Board connection failure. • The copier determines that there is an error if the Engine Control Board fails to send an acknowledgement signal to the Image Processor Board for a given period of time or more. • An error command signal is transmitted from the Image Processor Board to Engine Control Board. • An error status signal is transmitted from the Engine Control Board to Image Processor Board.
• Causes: • Engine Control Board, PL13.0.20 • Image Processor Board, PL2.0.4
• Troubleshooting Guides: 1 Check every connector on the Engine Control Board and the Image Processor Board. Are the connectors seated properly? Go to step 2. Reseat the connectors. If the problem persists, go to step 2. 2 Replace the Image Processor Board. Does the problem persist? Go to step 3. Complete. 3 Change the Engine Control Board. Complete.

• Code: 133C
• Display: Fax modem failure CODE (133C) Turn power off, on
• Description: Fax Modem Failure
• Causes: • Fax Board, PL13.0.30
• Troubleshooting Guides: 1 Replace the Fax Board. Complete.

• Code: 13C0
• Display: Engine board failure CODE (13C0) Turn power off, on
• Description: Print Control Board Malfunction
• Causes: • Engine Control Board, PL13.0.20
• Troubleshooting Guides: 1 Replace the Engine Control Board. Complete.

• Code: 13DD
• Display: Initial toner failed CODE (13DD) Replace toner Contact Xerox for unit exchange
• Description: Initial Toner Failure The printer determines that an initial toner cartridge has been installed. The printer is programmed to only use initial toner cartridges one time.
• Causes:
• Troubleshooting Guides: Install a Xerox Standard or High Capacity cartridge.

• Code: 13E2
• Display: Engine ROM failure CODE (13E2) Turn power off, on
• Description: Engine ROM Failure Flash ROM writing is found faulty during a check.
• Causes: • Engine Control Board, PL13.0.20 • Image Processor Board, PL2.0.4
• Troubleshooting Guides: 1 Check the Engine Control Board connectors. Are the connectors seated properly? Go to step 2. Reseat the connectors. If the problem persists, go to step 2. 2 Replace the Engine Control Board. Does the problem persist? Go to step 3. Complete. 3 Replace the Image Processor Board. Complete.

• Code: 14A3
• Display: Scanner head failure CODE (14A3) Turn power off, on
• Description: Scanner Head Failure The intensity of the light emitted from the exposure lamp of the scanner falls short of the specified value.
• Causes: • Scanner, PL2.0.4 • Image Processor Board, PL13.0.29/30
• Troubleshooting Guides: 1 Check the connectors on the Image Processor Board. Are the connectors seated properly? Go to step 2. Reseat the connectors. If the problem persists, go to step 2. 2 Replace the Scanner. Does the problem persist? Go to step 3. Complete. 3 Change the Image Processor Board. Complete.

• Code: 3C00
• Display: Eng. EEPROM failure CODE (3C00) Turn power off, on
• Description: Eng. EEPROM failure
• Causes:
• Troubleshooting Guides: Contact a Xerox representative to correct this error.

• Code: 3C10
• Display: Eng. EEPROM failure CODE (3C10) Turn power off, on
• Description: Eng. EEPROM failure
• Causes:
• Troubleshooting Guides: Contact a Xerox representative to correct this error.

• Code: 3FFF
• Display: Control ROM failure CODE (3FFF) Turn power off, on
• Description: Control ROM Failure • The copier determines that there is an error if writing to the flash ROM fails during upgrading of the firmware. • When the power switch is turned ON, the error indicator lights up steadily and a corresponding message appears on the display. • If this error message appears, no operations are possible. It is not possible to upgrade the firmware from a PC connected through USB connection.
• Causes: • Engine Control Board, PL13.0.20 • Image Processor Board, PL13.0.29/30
• Troubleshooting Guides: 1 Identify the specific firmware that is responsible for the error, and then rewrite the firmware. Does the problem persist? Go to step 2. Complete. 2 Unplug the NVRAM chip on the Engine Control Board, and then plug the chip back in. Does the problem persist? Go to step 3. Complete. 3 Change the Engine Control Board. Does the problem persist? Go to step 4. Complete. 4 Change the Image Processor Board. Complete.

• Code: CF01
• Display: Controller failure CODE (CF01) Turn power off, on
• Description: Controller Failure
• Causes:
• Troubleshooting Guides: The printer determined that there is an NVRAM failure. Contact a Xerox representative to correct this error.

– Get more error code list with quick guide to fix printer product, click here


– About get help with reseting Epson inkpad or others, click here

– Get more information about Epson XP 15000 troubleshooting, click here

Xerox printer reset software introduction:

Notes before resetting Xerox printer:

– Identify accurate version, serial and crum of Xerox printer.
– How to get Xerox printer model info: Click Here
– Before you continue with the reprogramming of the firmware, please make sure that the device is installed on your computer.
– It is very important that under no circumstances should you remove the chip from the cartridge while reprogramming the firmware. After you have succesfully reprogrammed the printer, remove the chip from the cartridge and store it somewhere safely (the chip – a key). In all cartridges which you are going to use in the printer, the chip has to be either removed or sealed. If you have accidently inserted a new cartridge without removing the chip, the device will be blocked. In order to unblock it, you can use the stored chip as a key which help you to unblock the printer.
– And make sure that any other devices (except mouse and keyboard), which are connected to your computer via USB or LPT ports are disconnected. It’s preferable that the computer is connected to the “UPS” (uninterruptible power source) device, because if during the reprogramming process the electricity source has any interruptions, then the reprogramming will be carried out with an error, which makes the device unable to work.
– This firmware will be installed directly to your printer. Before opening firmare link make sure that printer is turned on and connected to your computer and printer drivers are installed correctly.
Be aware that with the reprogramming of the firmware the manufacturer’s warranty goes lost!!

How To Run Firmware Fix Xerox printer

1. Connect the printer to the computer and turn it on.
2. Wait until the printer is ready for work.
3. Drag and drop *.hd to usbprns2.exe file.

4. The reprogramming process starts automatically.
5. Wait until the printer reprograms (10-20 minute) and restarts.
6. After that the reprogramming process is finished, restart the printer.
– Fix Xerox B205 Toner Empty Error, click here

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