Brother MFC9420CN fix error codes list

Brother MFC9420CN fix error codes list

– Compatible Printer model: Brother MFC9420CN
– Brother MFC9420CN Error Codes with instructions guide:

• Code: 20
• Description: Laser power error
• Causes: Connector LCN does not properly connected Laser unit defective Engine controller board defective
• Remedy: Connector LCN does not properly connected Connect the connector properly. Laser unit defective Replace the laser unit Engine controller board defective Replace the engine controller board

• Code: 21
• Description: Beam detector error.
• Causes: Connector LCN does not properly connected Laser unit defective Engine controller board defective
• Remedy: Connector LCN does not properly connected Connect the connector properly. Laser unit defective Replace the laser unit Engine controller board defective Replace the engine controller board

• Code: 22
• Description: NVRAM error
• Causes: Main PCB defective
• Remedy: Replace the main PCB

• Code: 23
• Description: Engine controller hardware error
• Causes: Control error Engine controller board defective
• Remedy: Control error Try the Power Switch Off/On Engine controller board defective Replace the engine controller board

• Code: 24
• Description: Process timing clock error.
• Causes: Main motor defective Engine controller board defective
• Remedy: Main motor defective Replace the main motor Engine controller board defective Replace the Engine controller board

• Code: 25
• Description: Developing motor error
• Causes: Toner cartridge gear defective Developer gear unit defective Developer motor defective Engine controller board defective
• Remedy: Toner cartridge gear defective Replace the toner cartridge. Developer gear unit defective Replace developer gear unit Developer motor defective Replace the developer motor Engine controller board defective Replace the engine controller board.

• Code: 26
• Description: Main motor error.
• Causes: Main motor defective Engine controller board defective
• Remedy: Main motor defective Replace the main motor Engine controller board defective Replace the engine controller board.

• Code: 27
• Description: Scanner motor error
• Causes: Connector LCN does not properly connected Laser unit defective Engine controller board defective
• Remedy: Connector LCN does not properly connected Connect the connector properly. Laser unit defective Replace the laser unit Engine controller board defective Replace the engine controller board.

• Code: 28
• Description: Charge HV unit error
• Causes: HV Power Supply defective
• Remedy: Replace the HV Power Supply PCB

• Code: 29
• Description: LVPS error.
• Causes: LV Power Supply defective
• Remedy: Replace the LV Power Supply PCB

• Code: 2A
• Description: Fuser thermistor error
• Causes: Fuser thermistor defective Engine controller board defective
• Remedy: Fuser thermistor defective Replace the fuser unit Engine controller board defective Replace the engine controller board.

• Code: 2B
• Description: Fuser heater error.
• Causes: Breakdown of Heater On/Off Circuit Breakdown of Temp Control Circuit
• Remedy: Breakdown of Heater On/OBreakdown of Temp Control Circuit Replace the engine controller boardff Circuit Replace the LV Power Supply PCB

• Code: 2C
• Description: Fuser temperature low error at warming-up.
• Causes: Contact Failure of Harness Connector Low Input Voltage
• Remedy: Contact Failure of Harness Connector Confirm the connection of Harness Connector Low Input Voltage Connect the printer with the rated voltage source.

• Code: 2D
• Description: Fuser temperature low error
• Causes: Low Input Voltage
• Remedy: Low Input Voltage Connect the printer with the rated voltage source.

• Code: 2E
• Description: Fuser temperature high error
• Causes: Breakdown of Heater On/Off Circuit Breakdown of Temp Control Circuit
• Remedy: Breakdown of Heater On/Off Circuit Replace the LV Power Supply PCB Breakdown of Temp Control Circuit Replace the engine controller board

• Code: 2F
• Description: Fuser ACOFF error.
• Causes: Breakdown of Heater On/Off Circuit Breakdown of Temp Control Circuit
• Remedy: Breakdown of Heater On/Off Circuit Replace the LV Power Supply PCB Breakdown of Temp Control Circuit Replace the engine controller board

• Code: 30
• Description: Erase LED error
• Causes: Erase lamp defective Engine controller board defective
• Remedy: Erase lamp defective Replace the erase lamp Engine controller board defective Replace the engine controller board.

• Code: 31
• Description: Power supply fan error
• Causes: Power supply fan defective Engine controller board defective
• Remedy: Power supply fan defective Replace the power supply fan Engine controller board defective Replace the engine controller board.

• Code: 32
• Description: Exit fan error
• Causes: Exit fan defective Engine controller board defective
• Remedy: Exit fan defective Replace the exit fan Engine controller board defective Replace the engine controller board.

• Code: 33
• Description: Laser unit fan ASSY error
• Causes: Laser unit fan ASSY defective Engine controller board defective
• Remedy: Laser unit fan ASSY defective Replace the Laser unit fan ASSY Engine controller board defective Replace the engine controller board.

• Code: 34
• Description: Yellow switching clutch error
• Causes: Yellow switching clutch defective Engine controller board defective
• Remedy: Yellow switching clutch defective Replace the yellow switching clutch Engine controller board defective Replace the engine controller board.

• Code: 35
• Description: Magenta switching clutch error
• Causes: Magenta switching clutch defective Engine controller board defective
• Remedy: Magenta switching clutch defective Replace the magenta switching clutch Engine controller board defective Replace the engine controller board.

• Code: 36
• Description: Cyan switching clutch error
• Causes: Cyan switching clutch defective Engine controller board defective
• Remedy: Cyan switching clutch defective Replace the cyan switching clutch Engine controller board defective Replace the engine controller board.

• Code: 37
• Description: Black switching clutch error
• Causes: Black switching clutch defective Engine controller board defective
• Remedy: Black switching clutch defective Replace the black switching clutch Engine controller board defective Replace the engine controller board.

• Code: 38
• Description: Yellow switching solenoid error
• Causes: Toner cartridge defective Toner retract solenoid assy defective Engine controller board defective
• Remedy: Toner cartridge defective Replace the toner cartridge Toner retract solenoid assy defective Replace the toner retract solenoid assy Engine controller board defective Replace the engine controller board.

• Code: 39
• Description: Magenta switching solenoid error
• Causes: Toner cartridge defective Toner retract solenoid assy defective Engine controller board defective
• Remedy: Toner cartridge defective Replace the toner cartridge Toner retract solenoid assy defective Replace the toner retract solenoid assy Engine controller board defective Replace the engine controller board.

• Code: 3A
• Description: Cyan switching solenoid error
• Causes: Toner cartridge defective Toner retract solenoid assy defective Engine controller board defective
• Remedy: Toner cartridge defective Replace the toner cartridge Toner retract solenoid assy defective Replace the toner retract solenoid assy Engine controller board defective Replace the engine controller board.

• Code: 3B
• Description: Black switching solenoid error
• Causes: Toner cartridge defective Toner retract solenoid assy defective Engine controller board defective
• Remedy: Toner cartridge defective Replace the toner cartridge Toner retract solenoid assy defective Replace the toner retract solenoid assy Engine controller board defective Replace the engine controller board.

• Code: 3C
• Description: Transfer belt error
• Causes: Transfer unit defective Marker sensor defective Engine controller board defective
• Remedy: Transfer unit defective Replace the transfer unit Marker sensor defective Replace the marker sensor Engine controller board defective Replace the engine controller board.

• Code: 3D
• Description: Transfer roller solenoid error.
• Causes: Transfer roller solenoid defective Engine controller board defective
• Remedy: Transfer roller solenoid defective Replace the transfer roller solenoid Engine controller board defective Replace the engine controller board.

• Code: 3E
• Description: Transfer belt cleaning solenoid error.
• Causes: Transfer belt cleaning solenoid defective Engine controller board defective
• Remedy: Transfer belt cleaning solenoid defective Replace the transfer belt cleaning solenoid Engine controller board defective Replace the engine controller board. Engine controller board defective Replace the engine controller board.

• Code: 3F
• Description: Fuser unit clutch error.
• Causes: Fuser unit clutch defective Engine controller board defective
• Remedy: Fuser unit clutch defective Replace the fuser unit clutch Engine controller board defective Replace the engine controller board.

• Code: 40
• Description: Belt marker sense error
• Causes: Belt marker sensor defective Engine controller board defective
• Remedy: Belt marker sensor defective Replace the belt marker sensor Engine controller board defective Replace the engine controller board.

• Code: 41
• Description: HVU connection error
• Causes: LV Power Supply PCB defective Engine controller board defective
• Remedy: LV Power Supply PCB defective Replace the LV Power Supply PCB Engine controller board defective Replace the engine controller board.

• Code: 42, 43
• Description: Toner empty sensor connection error 1, 2
• Causes: Toner sensor defective Engine controller board defective
• Remedy: Toner sensor defective Replace the toner sensor Engine controller board defective Replace the engine controller board.

• Code: 44
• Description: Lower feeder unit connection error
• Causes: Lower feeder unit connector damaged Engine controller board defective
• Remedy: Lower feeder unit connector damaged Replace the lower feeder unit Engine controller board defective Replace the engine controller board.

• Code: 50
• Description: Cyan toner empty
• Causes: The cyan toner cartridge is empty.
• Remedy: Replace the cyan toner cartridge with a new one.

• Code: 51
• Description: Magenta toner empty
• Causes: The magenta toner cartridge is empty.
• Remedy: Replace the magenta toner cartridge with a new one.

• Code: 52
• Description: Yellow toner empty
• Causes: The yellow toner cartridge is empty.
• Remedy: Replace the yellow toner cartridge with a new one.

• Code: 53
• Description: Black toner empty
• Causes: The black toner cartridge is empty.
• Remedy: Replace the black toner cartridge with a new one.

• Code: 54
• Description: Cyan cartridge run out
• Causes: No cyan toner cartridge is installed.
• Remedy: Install the cyan toner cartridge.

• Code: 55
• Description: Magenta cartridge run out
• Causes: No magenta toner cartridge is installed.
• Remedy: Install the magenta toner cartridge.

• Code: 56
• Description: Yellow cartridge run out
• Causes: No yellow toner cartridge is installed.
• Remedy: Install the yellow toner cartridge.

• Code: 57
• Description: Black cartridge run out
• Causes: No black toner cartridge is installed.
• Remedy: Install the black toner cartridge.

• Code: 58
• Description: Illegal toner cartridge
• Causes: The substandard toner cartridge is installed.
• Remedy: Install the standard toner cartridge.

• Code: 59
• Description: Cyan toner near-empty
• Causes: The cyan toner cartridge is nearly empty.
• Remedy:

• Code: 5A
• Description: Magenta toner near-empty
• Causes: The magenta toner cartridge is nearly empty.
• Remedy:

• Code: 5B
• Description: Yellow toner near-empty
• Causes: The yellow toner cartridge is nearly empty.
• Remedy:

Solved Brother MFC9420CN Error codes

• Code: 5C
• Description: Black toner near-empty
• Causes: The black toner cartridge is nearly empty.
• Remedy:

• Code: 60
• Description: Stacker full
• Causes: The output tray is full of the recording paper.
• Remedy: Remove the recording paper from the output tray.

• Code: 61
• Description: TMA&TMAM control
• Causes: The automatic color calibration is failed.
• Remedy: Press the Stop key to clear the error.

• Code: 70
• Description: OPC belt un-device
• Causes: The OPC belt is removed.
• Remedy: Assemble the OPC belt.

• Code: 71
• Description: Fuser unit un-device
• Causes: The fuser unit is not assembled.
• Remedy: Assemble the fuser unit.

• Code: 72
• Description: Transfer roller un- device
• Causes: The transfer roller is not assembled.
• Remedy: Assemble the transfer roller.

• Code: 73
• Description: Waste toner box full or un-device
• Causes: The waste toner box is not assembled. The waste toner box is full.
• Remedy: The waste toner box is not assembled. Assemble the waste toner box. The waste toner box is full. Replace the waste toner box with a new one.

• Code: 74
• Description: OPC belt exchange
• Causes: Replacement timing of the OPC belt.
• Remedy: Replace the OPC belt with a new one.

• Code: 75
• Description: Fuser unit exchange
• Causes: Replacement timing of the fuser unit.
• Remedy: Replace the fuser unit with a new one.

• Code: 76
• Description: Transfer roller
• Causes: Replacement timing of the transfer roller.
• Remedy: Replace the transfer roller with a new one.

• Code: 77
• Description: 120K Kit exchange
• Causes: Replacement timing of the 120K kit.
• Remedy: Replace the 120K kit with a new one.

• Code: 78
• Description: PF Kit2 exchange
• Causes: Replacement timing of the PF Kit2.
• Remedy: Replace the PF Kit2 with a new one.

• Code: 79
• Description: Wasted toner box near-full (exchange)
• Causes: The waste toner box is nearly full.
• Remedy: Replace the waste toner box with a new one

• Code: 7A
• Description: Top cover open error
• Causes: The top cover is opened.
• Remedy: Close the top cover.

• Code: 7B
• Description: Back cover open error
• Causes: The back cover is opened.
• Remedy: Close the back cover.

• Code: 80
• Description: AT the start of FAX message printing, the controller detects that paper is smaller than A4 size in length.
• Causes: Paper smaller than the specified size loaded in the paper tray Engine controller board PCB defective
• Remedy: Paper smaller than the specified size loaded in the paper tray Load the correct size of paper. Engine controller board PCB defective Replace the engine controller board PCB.

• Code: 81
• Description: Recording paper jam. (The paper width sensor stays ON even after completion of paper ejection operation.)
• Causes:
• Remedy:

• Code: 82
• Description: Recording paper jam in paper pull-in operation (The paper width sensor fails to detect the leading edge of paper.)
• Causes:
• Remedy:

• Code: 83
• Description: Recording paper jam. (The registration sensor comes ON too early in the paper feeding operation.)
• Causes: Paper is not correctly set in the paper tray Separation pad damaged Registration sensor actuator unhooked Engine controller board PCB defective
• Remedy: Paper is not correctly set in the paper tray Reload paper. Separation pad damaged Replace the paper tray. Registration sensor actuator unhooked Set the registration sensor actuator into place Engine controller board PCB defective Replace the engine controller board PCB.

• Code: 84
• Description: Recording paper jam. (The registration sensor stays ON after completion of paper ejection operation.)
• Causes: The paper ejection roller does not rotate correctly Foreign materials in the paper path. Registration sensor actuator caught on the surrounding parts Registration sensor broken Engine controller board PCB defective
• Remedy: The paper ejection roller does not rotate correctly Replace the paper ejection roller. Foreign materials in the paper path. Remove foreign materials. Registration sensor actuator caught on the surrounding parts Correct the surrounding parts on which the actuator caught. Registration sensor broken Replace the sensor PCB. Engine controller board PCB defective Replace the engine controller board PCB.

• Code: 85
• Description: No paper tray loaded.
• Causes:
• Remedy:

• Code: 86
• Description: Tray2 Open
• Causes:
• Remedy:

• Code: 87
• Description: Paper Type Error
• Causes:
• Remedy:

• Code: 88
• Description: Recording paper jam. (Even after paper pulling-in operation, the registration sensor is still OFF.)
• Causes: Recording paper not loaded correctly Registration sensor broken Separation pad damaged Objects, such as bits of paper or chips, are in the paper tray or paper tray Paper pick up roller defective Main motor broken Engine controller board PCB defective
• Remedy: Recording paper not loaded correctly Instruct the user to load the recording Registration sensor broken Replace the registration sensor. Separation pad damaged Replace the paper tray. Objects, such as bits of paper or chips, are in the paper tray or paper tray Remove the objects from the paper tray. Paper pick up roller defective Replace the paper pick up roller. Main motor broken Replace the main motor ASSY. Engine controller board PCB defective Replace the engine controller board PCB.

• Code: A1
• Description: Front cover (scanner unit) opened.
• Causes: Hook of the front open switch on the front cover broken Front open switch broken
• Remedy: Hook of the front open switch on the front cover broken Replace the front cover. Front open switch broken Replace the front open switch.

• Code: A2
• Description: Document length exceeding the scan limitation. During scanning, 90 cm or longer of a document is detected. During document feeding or ejecting, 400 cm or longer of a document is detected.
• Causes: Document jam Document rear sensor actuator caught on the surrounding parts Document rear sensor broken
• Remedy: Document jam Remove the jammed document. Document rear sensor actuator caught on the surrounding parts Correct the surrounding parts on which the actuator caught. Document rear sensor broken Replace the document rear sensor.

• Code: A3
• Description: The document rear sensor does not come ON during document pull-in operation.
• Causes: Document jam Document rear sensor actuator caught on the surrounding parts Document rear sensor broken
• Remedy: Document jam Remove the jammed document. Document rear sensor actuator caught on the surrounding parts Correct the surrounding parts on which the actuator caught. Document rear sensor broken Replace the document rear sensor.

• Code: A4
• Description: 50% or more faulty of white level data.
• Causes:
• Remedy:

• Code: A5
• Description: FAX scanning failure. (1st time)
• Causes: CIS defective White-level reference film stained in the scanner cover
• Remedy: CIS defective White-level reference film stained in the scanner cover Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB

• Code: A6
• Description: FAX scanning failure. (retry)
• Causes: Main PCB defective
• Remedy: CIS defective White-level reference film stained in the scanner cover Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB

• Code: AB
• Description: CIS Resolution failure.
• Causes: CIS defective. Main PCB defective
• Remedy: CIS defective. Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: AC
• Description: Less than 50% faulty of white level data.
• Causes:
• Remedy:

• Code: AF
• Description: CIS positioning error.
• Causes: CIS flat cable broken or not connected CIS motor harness not connected properly CIS defective Main PCB defective
• Remedy: CIS flat cable broken or not connected Correct the cable connection. Replace the scanner cover (scanner unit). CIS motor harness not connected properly Correct the harness connection. CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: B7
• Description: A/D converter reference voltage error (at High level).
• Causes: Main PCB defective
• Remedy: Main PCB defective Replace the main PCB.

• Code: B9
• Description: Light emission intensity error of the LED array (Exceeding the upper limit).
• Causes: CIS defective Main PCB defective
• Remedy: CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: BB
• Description: White level data error.
• Causes: CIS defective Main PCB defective
• Remedy: CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: BD
• Description: Black level data error.
• Causes: CIS defective Main PCB defective
• Remedy: CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: D0…DF
• Description: Modem error.
• Causes: Main PCB defective
• Remedy: Replace the main PCB

• Code: E6
• Description: Write error in EEPROM.
• Causes: Main PCB defective
• Remedy: Replace the main PCB

• Code: E8
• Description: Data scanning error during transmission.
• Causes: CIS defective Main PCB defective
• Remedy: CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB

• Code: EA
• Description: Document removed at phase B.
• Causes: Document front sensor actuator caught on the surrounding parts Sensor PCB defective Main PCB defective
• Remedy: Document front sensor actuator caught on the surrounding parts Correct the surrounding parts on which the actuator caught. Sensor PCB defective Replace the sensor PCB. Main PCB defective Replace the main PCB.

• Code: F8
• Description: Battery connection error
• Causes: Disconnection
• Remedy: Connect the battery

• Code: FF
• Description: Memory management error.
• Causes:
• Remedy:

– 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

About Canon Servie Tool V5610

– Canon Service Tool V5610 is a tool used to perform maintenance on Canon printers and reset Canon printers after replacement of parts such as replacing ink absorbents, print heads, printer mainboard, and others. Based on the many cases we have encountered, the Service Tool is most often used to reset ink absorber counter value when the waste ink absorber is full.
– The ink absorber is going to be full of box, it has to be replaced or cleaned the waste ink absorber. Also, replaceing or cleaning the waste ink absorber, you need to repair or reset the waste ink counter value, cause those parts are concerned to each others.
– So using Canon Service Tool V5610 to reset the waste ink counter value becomes effective when the ink absorber is replaced or cleaned.

– Canon Service Tool V5610 can use to fix error code 5B00, 5B02, 5B04, 5B14, 1701, 1702, 1700 on your printer. You must enter Service Mode on your printer to use this Canon Service Tool.
– If the printer can not enter Service Mode, you can not reset it by Canon ST V5610. In this case, change EEPROM on the logic board.

Canon Service Tool V5610 Functions

– Fix Canon printer 7 times/ 8 times red light blinking:

– Fix Canon printer error code: 5B00, 5B01, 1700, 1701

Enter Service Mode on Canon Printer

1. Turn off a printer
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3. Press and hold the ON button (do not release both buttons)
4. Release the Resume/Cancel/Stop button (do not release the ON button)
5. While holding the ON button, press the Resume/Cancel/Stop button 5 times, then release both the ON and Resume/Cancel/Stop buttons together.
– Canon printer in service mode: computer detects new hardware, led on printer goes green light.
For more information about Canon Serice Tool V5610

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