Brother MFC-L9550CDW fix error codes list

Brother MFC-L9550CDW fix error codes list

– Compatible Printer model: Brother MFC-L9550CDW
– Brother MFC-L9550CDW Error Codes with instructions guide:

• Code: 0100
• Display: Print Unable 01 Turn the power off and then back on again.
• Description: ASIC error or motor driver error occurred.
• Remedy: 1 Main PCB failure Replace the main PCB ASSY.

• Code: 0201
• Display: Print Unable 02 Turn the power off and then back on again.
• Description: Synchronization signal from the main motor cannot be detected. Or the main motor speed is unstable after a set period of time.
• Remedy: 1 Connection failure of the main motor harness Reconnect the main motor harness. 2 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 3 Part in the process drive unit damaged Replace the process drive unit. 4 Fuser unit damaged Replace the fuser unit. 5 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 6 Main PCB failure Replace the main PCB ASSY.

• Code: 0202
• Display: Print Unable 02 Turn the power off and then back on again.
• Description: Synchronization signal from the process motor cannot be detected. Or the process motor speed is unstable after a set period of time.
• Remedy: 1 Connection failure of the process motor harness Reconnect the process motor harness. 2 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 3 Part in the process drive unit damaged Replace the process drive unit. 4 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 0300
• Display: Print Unable 03 Turn the power off and then back on again.
• Description: The Lock signal of the polygon motor of the laser unit cannot be detected.
• Remedy: 1 Connection failure of the polygon motor harness Reconnect the polygon motor harness. 2 Laser unit failure Replace the laser unit. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 0401
• Display: Print Unable 04 Turn the power off and then back on again.
• Description: BD sensor 1 damaged.
• Remedy: 1 Connection failure of the polygon motor harness Reconnect the polygon motor harness. 2 Laser unit failure Replace the laser unit. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 0402
• Display: Print Unable 04 Turn the power off and then back on again.
• Description: BD sensor 4 damaged.
• Remedy: 1 Connection failure of the polygon motor harness Reconnect the polygon motor harness. 2 Laser unit failure Replace the laser unit. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 0501
• Display: Print Unable 05 Turn the power off and then back on again.
• Description: The center thermistor of the fuser unit does not reach the specified temperature within the specified time.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the harness of the center thermistor or side thermistor of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 0502
• Display: Print Unable 05 Turn the power off and then back on again.
• Description: After the temperature of the fuser unit rises to a certain level, the temperature of the center thermistor does not reach the specified temperature within the specified period of time in the next step.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the harness of the center thermistor or side thermistor of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 0503
• Display: Print Unable 05 Turn the power off and then back on again.
• Description: The center thermistor of the fuser unit detected a temperature higher than the specified value.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the harness of the center thermistor or side thermistor of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 0504
• Display: Print Unable 05 Turn the power off and then back on again.
• Description: After the center thermistor of the fuser unit was normally heated, it detected a temperature lower than the specified value.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the harness of the center thermistor or side thermistor of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 0505
• Display: Print Unable 05 Turn the power off and then back on again.
• Description: The center thermistor of the fuser unit detected a temperature rise greater than the specified value within a set period of time.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the harness of the center thermistor or side thermistor of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 0506
• Display: Print Unable 05 Turn the power off and then back on again.
• Description: The center thermistor of the fuser unit detected a temperature fall greater than the specified value within a set period of time.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the harness of the center thermistor or side thermistor of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 050A
• Display: Print Unable 05 Turn the power off and then back on again.
• Description: The center thermistor or side thermistor of the fuser unit detected some temperature error in the hardware.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the harness of the center thermistor or side thermistor of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 050B
• Display: Print Unable 05 Turn the power off and then back on again.
• Description: When the temperature of the center thermistor of the fuser unit is lower than the idle temperature, the side thermistor of the fuser unit detected a temperature higher than the specified value.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the harness of the center thermistor or side thermistor of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 050C
• Display: Print Unable 05 Turn the power off and then back on again.
• Description: When the temperature of the center thermistor of the fuser unit is higher than the idle temperature, the side thermistor of the fuser unit detected a temperature lower than the specified value.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the harness of the center thermistor or side thermistor of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the low-voltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 0800
• Display: Print Unable 08 Turn the power off and then back on again.
• Description: Error occurred in the internal temperature sensor.
• Remedy: 1 Connection failure of the internal temperature sensor harness Reconnect the internal temperature sensor harness. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 0900
• Display: Print Unable 09 Turn the power off and then back on again.
• Description: Machine detected more than 100 times that supplied power was unstable.
• Remedy: < User Check > – Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. After replacing the low-voltage power supply PCB unit (Function code 88), and reset the irregular power supply detection counter of the low-voltage power supply PCB unit. 2 Main PCB failure Replace the main PCB ASSY.
  Note: The irregular power supply detection error (Error code 0900) of the low-voltage power supply PCB unit occurs when there is a large distortion in the power supply voltage supplied to the machine. In this case, if the same power supply is used, the same error might occur again even if the low-voltage power supply PCB unit is replaced. For this reason, be sure to ask the user to rearrange the installation environment.

• Code: 0A01
• Display: Print Unable 0A Turn the power off and then back on again.
• Description: The blower failure was detected.
• Remedy: 1 Connection failure of the blower harness Reconnect the blower harness. 2 Connection failure of the high-voltage power supply PCB harness Reconnect the high-voltage power supply PCB harness. 3 Blower failure Replace the blower. 4 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 5 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 6 Main PCB failure Replace the main PCB ASSY.

• Code: 0A02
• Display: Print Unable 0A Turn the power off and then back on again.
• Description: The fuser fan failure was detected.
• Remedy: 1 Connection failure of the fuser fan harness Reconnect the fuser fan harness. 2 Connection failure of the high-voltage power supply PCB harness Reconnect the high-voltage power supply PCB harness. 3 Fuser fan failure Replace the fuser fan. 4 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 5 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 6 Main PCB failure Replace the main PCB ASSY.

• Code: 0B01
• Display: Print Unable 0B Turn the power off and then back on again.
• Description: Error occurred in the high-voltage power supply PCB ASSY while the machine is in operation.
• Remedy: < User Check > – Replace the drum unit.
  1 Connection failure of the high-voltage power supply PCB harness Reconnect the high-voltage power supply PCB harness. 2 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 0B02
• Display: Print Unable 0B Turn the power off and then back on again.
• Description: Error occurred in the high-voltage power supply PCB ASSY in the ready state.
• Remedy: < User Check > – Replace the drum unit.
  1 Connection failure of the high-voltage power supply PCB harness Reconnect the high-voltage power supply PCB harness. 2 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 0C00
• Display: Print Unable 0C Turn the power off and then back on again.
• Description: Error occurred in the density sensor.
• Remedy: 1 Connection failure of the registration mark sensor L PCB harness Reconnect the registration mark sensor L PCB harness. 2 Registration mark sensor L PCB failure Replace the registration mark sensor unit. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 0E00
• Display: Print Unable 0E Turn the power off and then back on again.
• Description: Communication error occurred in the high-voltage power supply PCB ASSY.
• Remedy: 1 Connection failure of the high-voltage power supply PCB harness Reconnect the high-voltage power supply PCB harness. 2 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 1003
• Display: Print Unable 10 Turn the power off and then back on again.
• Description: The registration mark sensor R is dirty and cannot normally receive reflected light.
• Remedy: < User Check > – Clean the dirt on the belt unit or replace the belt unit. – Replace the waste toner box.
  1 Dirt on the registration mark sensor R Clean the registration mark sensor R of the registration mark sensor R PCB. 2 Dirt by toner inside the machine Clean inside of the machine. 3 Registration mark sensor R PCB failure Replace the registration mark sensor unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 1004
• Display: Print Unable 10 Turn the power off and then back on again.
• Description: The registration mark sensor L is dirty and cannot normally receive reflected light.
• Remedy: < User Check > – Clean the dirt on the belt unit or replace the belt unit. – Replace the waste toner box.
  1 Dirt on the registration mark sensor L Clean the registration mark sensor L of the registration mark sensor L PCB. 2 Dirt by toner inside the machine Clean inside of the machine. 3 Registration mark sensor L PCB failure Replace the registration mark sensor unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 1400
• Display: Condensation Leave switched ON. Fully open the Front Cover. Wait 30 minutes, switch OFF and close cover, then switch ON.
• Description: Condensation occurred in the machine.
• Remedy: < User Check > – Open the front and back covers and leave them for 30 minutes or more with the power ON. After that, close the front and back covers and turn OFF and ON the power switch.
  1 Main PCB failure Replace the main PCB ASSY. 2 Laser unit failure Replace the laser unit.

• Code: 1500
• Display: Print Unable 15 Turn the power off and then back on again.
• Description: Error occurred in the paper eject origin sensor.
• Remedy: 1 Connection failure of the paper eject origin sensor harness Reconnect the paper eject origin sensor harness. 2 Paper eject origin sensor failure Replace the paper eject origin sensor. 3 Paper eject ASSY failure Replace the paper eject ASSY.

• Code: 1C00
• Display: Print Unable EB Turn the power off and then back on again.
• Description: The reading signal of the EEPROM of the laser unit cannot be detected.
• Remedy: 1 Connection failure of the laser unit flat cable Reconnect the laser unit flat cable. 2 Laser unit failure Replace the laser unit. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 3801
• Display: Print Unable 38 Turn the power off and then back on again.
• Description: Temperature error occurred in the external temperature/humidity sensor.
• Remedy: 1 Connection failure of the high-voltage power supply PCB harness Reconnect the high-voltage power supply PCB harness. 2 External temperature/humidity sensor failure Replace the high-voltage power supply PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 3802
• Display: Print Unable 38 Turn the power off and then back on again.
• Description: Humidity error occurred in the external temperature/humidity sensor.
• Remedy: 1 Connection failure of the high-voltage power supply PCB harness Reconnect the high-voltage power supply PCB harness. 2 External temperature/humidity sensor failure Replace the high-voltage power supply PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 3A00
• Display: Print Unable 3A Turn the power off and then back on again.
• Description: Error occurred in the communication between the controller in the main PCB and engine.
• Remedy: 1 Main PCB failure Replace the main PCB ASSY.

• Code: 4000
• Display: Supplies Drum End Soon.
• Description: Number of the drum unit rotations reaches the upper limit soon.
• Remedy: < User Check > – Prepare a new drum unit.
  1 Main PCB failure if the error code remains after replacing with a new drum unit and resetting the drum counter Replace the main PCB ASSY.

• Code: 4200
• Display: Supplies Replace Drum
• Description: Number of the drum unit rotations has reached the upper limit. (Printing is not stopped.)
• Remedy: < User Check > – Prepare a new drum unit.
  1 Main PCB failure if the error code remains after replacing with a new drum unit and resetting the drum counter Replace the main PCB ASSY.

• Code: 4300
• Display: Supplies Belt End Soon
• Description: Number of pages printed with the belt unit will reach the upper limit soon. (90%)
• Remedy: < User Check > – Prepare a new belt unit.
  1 Main PCB failure if the error code remains after replacing with a new belt unit and resetting the belt counter Replace the main PCB ASSY.

• Code: 4400
• Display: Supplies Replace Belt
• Description: Number of pages printed with the belt unit has reached the upper limit. (Printing is not stopped.j
• Remedy: < User Check > – Prepare a new belt unit.
  1 Main PCB failure if the error code remains after replacing with a new belt unit and resetting the belt counter Replace the main PCB ASSY.

• Code: 4500
• Display: Maintenance Replace Fuser
• Description: Number of used pages for the fuser unit has reached the upper limit. (Printing is not stopped.j
• Remedy: 1 The fuser unit is at the end of life Replace the fuser unit. After replacing the fuser unit, refer to (Function code 88), and reset the fuser unit counter. 2 Main PCB failure if the error code remains after replacing with a new fuser unit and resetting the fuser unit counter Replace the main PCB ASSY.

• Code: 4600
• Display: Maintenance Replace Laser
• Description: Number of pages printed with the laser unit has reached the upper limit.
• Remedy: 1 The laser unit is at the end of life Replace the laser unit. After replacing the laser unit (Function code 88) and reset the laser unit counter. 2 Main PCB failure if the error code remains after replacing with a new laser unit and resetting the laser unit counter Replace the main PCB ASSY.

• Code: 4700
• Display: Supplies WT Box End Soon
• Description: The waste toner sensor detected that the waste toner box is almost full.
• Remedy: < User Check > – Replace the waste toner box.
  1 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 4800
• Display: Replace WT Box Replace the Waste Toner Box inside the machine.
• Description: After the waste toner sensor detected that the waste toner box was almost full, pages more than the specified number have been printed.
• Remedy: < User Check > – Replace the waste toner box.
  1 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 4B01
• Display: Supplies Toner Low:BK
• Description: Dot counter of the toner cartridge (Black) or develop roller counter reaches the upper limit soon.
• Remedy: < User Check > – Prepare a new toner cartridge.
  1 New toner actuator coming off Re-assemble the new toner actuator. 2 Connection failure of the new toner sensor PCB harness Reconnect the toner/new sensor PCB harness. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 4B02
• Display: Supplies Toner Low:Y
• Description: Dot counter of the toner cartridge (Yellow) or develop roller counter reaches the upper limit soon.
• Remedy: < User Check > – Prepare a new toner cartridge.
  1 New toner actuator coming off Re-assemble the new toner actuator. 2 Connection failure of the new toner sensor PCB harness Reconnect the toner/new sensor PCB harness. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 4B03
• Display: Supplies Toner Low:M
• Description: Dot counter of the toner cartridge (Magenta) or develop roller counter reaches the upper limit soon.
• Remedy: < User Check > – Prepare a new toner cartridge.
  1 New toner actuator coming off Re-assemble the new toner actuator. 2 Connection failure of the new toner sensor PCB harness Reconnect the toner/new sensor PCB harness. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 4B04
• Display: Supplies Toner Low:C
• Description: Dot counter of the toner cartridge (Cyan) or develop roller counter reaches the upper limit soon.
• Remedy: < User Check > – Prepare a new toner cartridge.
  1 New toner actuator coming off Re-assemble the new toner actuator. 2 Connection failure of the new toner sensor PCB harness Reconnect the toner/new sensor PCB harness. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 4C01
• Display: Replace Toner Open the Top Cover, replace Toner Cartridge. Black (BK).
• Description: Dot counter of the toner cartridge (Black) or develop roller counter has reached the upper limit was detected.
• Remedy: < User Check > – Replace the toner cartridge whose counter reached the upper limit.
  1 Main PCB failure if the error code remains after replacing with a new toner cartridge and resetting the toner counter Replace the main PCB ASSY.

• Code: 4C02
• Display: Replace Toner Open the Top Cover, replace Toner Cartridge. Yellow (Y).
• Description: Dot counter of the toner cartridge (Yellow) or develop roller counter has reached the upper limit was detected.
• Remedy: < User Check > – Replace the toner cartridge whose counter reached the upper limit.
  1 Main PCB failure if the error code remains after replacing with a new toner cartridge and resetting the toner counter Replace the main PCB ASSY.

• Code: 4C03
• Display: Replace Toner Open the Top Cover, replace Toner Cartridge. Magenta (M).
• Description: Dot counter of the toner cartridge (Magenta) or develop roller counter has reached the upper limit was detected.
• Remedy: < User Check > – Replace the toner cartridge whose counter reached the upper limit.
  1 Main PCB failure if the error code remains after replacing with a new toner cartridge and resetting the toner counter Replace the main PCB ASSY.

• Code: 4C04
• Display: Replace Toner Open the Top Cover, replace Toner Cartridge. Cyan (C).
• Description: Dot counter of the toner cartridge (Cyan) or develop roller counter has reached the upper limit was detected.
• Remedy: < User Check > – Replace the toner cartridge whose counter reached the upper limit.
  1 Main PCB failure if the error code remains after replacing with a new toner cartridge and resetting the toner counter Replace the main PCB ASSY.

• Code: 4C05
• Display: Replace Toner Open the Top Cover, replace Toner Cartridge. Cyan (C)/ Magenta (M)/ Yellow (Y).
• Description: During printing, dot counter of color toner cartridge or develop roller counter has reached the upper limit was detected.
• Remedy: < User Check > – Replace the toner cartridge whose counter reached the upper limit.
  1 Main PCB failure if the error code remains after replacing with a new toner cartridge and resetting the toner counter Replace the main PCB ASSY.

Solved Brother MFC-L9550CDW Error codes

• Code: 4F01
• Display: Cartridge Error Put the Toner Cartridge back in.
• Description: The new toner sensor of the toner cartridge (Black) could not detect a new cartridge properly.
• Remedy: < User Check > – Replace the toner cartridge with a new toner cartridge again. – If the place where the machine is installed is not flat, relocate the machine to a flat place.
  1 Connection failure of the new toner sensor PCB harness Reconnect the toner/new sensor PCB harness. 2 New toner actuator that has come off or that has been caught Re-assemble the new toner actuator. 3 New toner sensor failure Replace the toner/new sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 4F02
• Display: Cartridge Error Put the Yellow #C Toner Cartridge back in.
• Description: The new toner sensor of the toner cartridge (Yellow) could not detect a new cartridge properly.
• Remedy: < User Check > – Replace the toner cartridge with a new toner cartridge again. – If the place where the machine is installed is not flat, relocate the machine to a flat place.
  1 Connection failure of the new toner sensor PCB harness Reconnect the toner/new sensor PCB harness. 2 New toner actuator that has come off or that has been caught Re-assemble the new toner actuator. 3 New toner sensor failure Replace the toner/new sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 4F03
• Display: Cartridge Error Put the Magenta #C Toner Cartridge back in.
• Description: The new toner sensor of the toner cartridge (Magenta) could not detect a new cartridge properly.
• Remedy: < User Check > – Replace the toner cartridge with a new toner cartridge again. – If the place where the machine is installed is not flat, relocate the machine to a flat place.
  1 Connection failure of the new toner sensor PCB harness Reconnect the toner/new sensor PCB harness. 2 New toner actuator that has come off or that has been caught Re-assemble the new toner actuator. 3 New toner sensor failure Replace the toner/new sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 4F04
• Display: Cartridge Error Put the Cyan #C Toner Cartridge back in.
• Description: The new toner sensor of the toner cartridge (Cyan) could not detect a new cartridge properly.
• Remedy: < User Check > – Replace the toner cartridge with a new toner cartridge again. – If the place where the machine is installed is not flat, relocate the machine to a flat place.
  1 Connection failure of the new toner sensor PCB harness Reconnect the toner/new sensor PCB harness. 2 New toner actuator that has come off or that has been caught Re-assemble the new toner actuator. 3 New toner sensor failure Replace the toner/new sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 5001
• Display: Maintenance Replace PF Kit MP
• Description: Number of used pages for the PF kit MP has reached the upper limit. (Printing is not stopped.)
• Remedy: 1 The PF kit MP is at the end of life Replace the PF kit MP. After replacing the PF kit MP (Function code 88) and reset the PF kit MP counter. 2 Main PCB failure if the error code remains after resetting the counter of the PF kit MP Replace the main PCB ASSY.

• Code: 5002
• Display: Maintenance Replace PF Kit1
• Description: Number of used pages for the PF kit 1 has reached the upper limit. (Printing is not stopped.)
• Remedy: 1 The PF kit 1 is at the end of life Replace the PF kit 1. After replacing the PF kit 1 Reset counters for parts (Function code 88) and reset the PF kit 1 counter. 2 Main PCB failure if the error code remains after resetting the counter of the PF kit 1 Replace the main PCB ASSY.

• Code: 5003
• Display: Maintenance Replace PF Kit2
• Description: Number of used pages for the PF kit 2 has reached the upper limit. (Printing is not stopped.)
• Remedy: 1 The PF kit 2 is at the end of life Replace the PF kit 2. After replacing the PF kit 2 Reset counters for parts (Function code 88) and reset the PF kit 2 counter. 2 Main PCB failure if the error code remains after resetting the counter of the PF kit 2 Replace the main PCB ASSY.

• Code: 6001
• Display: Cover is Open Close the Front Cover.
• Description: The front cover sensor detected that the front cover was open.
• Remedy: < User Check > – Close the front cover.
  1 Connection failure of the front cover sensor harness Reconnect the front cover sensor harness. 2 Front cover failure Replace the front cover. 3 Front cover sensor failure Replace the front cover sensor. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 6004
• Display: Cover is Open Close the Back Cover of the machine.
• Description: The eject sensor detected that the fuser cover was open.
• Remedy: < User Check > – Close the fuser cover.
  1 Eject actuator that has come off or that has been caught Re-assemble the eject actuator. 2 Fuser cover installation failure Re-assemble the fuser cover. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 6101
• Display: No Toner Open the Front Cover, then install Toner Cartridge. Black (BK).
• Description: The toner sensor detected that no toner cartridge (Black) was set.
• Remedy: < User Check > – Re-insert the toner cartridge.
  1 Toner sensor failure Replace the toner/new sensor PCB ASSY. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 6102
• Display: No Toner Open the Front Cover, then install Toner Cartridge. Yellow (Y).
• Description: The toner sensor detected that no toner cartridge (Yellow) was set.
• Remedy: < User Check > – Re-insert the toner cartridge.
  1 Toner sensor failure Replace the toner/new sensor PCB ASSY. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 6103
• Display: No Toner Open the Front Cover, then install Toner Cartridge. Magenta (M).
• Description: The toner sensor detected that no toner cartridge (Magenta) was set.
• Remedy: < User Check > – Re-insert the toner cartridge.
  1 Toner sensor failure Replace the toner/new sensor PCB ASSY. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 6104
• Display: No Toner Open the Front Cover, then install Toner Cartridge. Cyan (C).
• Description: The toner sensor detected that no toner cartridge (Cyan) was set.
• Remedy: < User Check > – Re-insert the toner cartridge.
  1 Toner sensor failure Replace the toner/new sensor PCB ASSY. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 6200
• Display: No Drum Unit Install the Drum Unit.
• Description: The current value between the CHG and GRID terminals and the toner sensor detected that there were no toner cartridges of any colors and detected that the drum unit was not set.
• Remedy: < User Check > – Re-insert the drum unit.
  1 Dirt on the GRID terminals of the main body and drum unit Clean the GRID terminals of the main body and drum unit. 2 Dirt on the terminal of the high-voltage power supply PCB Clean the terminal of the high-voltage power supply PCB. 3 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 4 Toner sensor failure Replace the toner/new sensor PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 6300
• Display: No Waste Toner Install the Waste Toner Box.
• Description: The waste toner sensor detected that no waste toner box was set.
• Remedy: < User Check > – Re-insert the waste toner box in the correct position.
  1 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 6400
• Display: No Belt Unit Open the Front Cover, pull out all Drum Units completely and install the Belt Unit.
• Description: The registration mark sensor detected that no belt unit was set.
• Remedy: < User Check > – Re-insert the belt unit.
  1 Connection failure of the registration mark L PCB harness Reconnect the registration mark sensor L PCB harness. 2 Registration mark L sensor failure Replace the registration mark sensor unit. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 6801
• Display: Cooling Down Wait for a while
• Description: The internal temperature sensor or side thermistor of the fuser unit detected a temperature higher than the specified value.
• Remedy: < User Check > – Decrease the room temperature. – Place the machine away from a heater.
  1 Connection failure of the internal temperature sensor harness Reconnect the internal temperature sensor harness. 2 Side thermistor of the fuser unit failure Replace the fuser unit. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 6901
• Display: Self-Diagnostic Turn the power off, then on again. Leave the machine for 15 min.
• Description: Some fuser unit errors occurred at power-ON or upon recovery from sleep mode.
• Remedy: 1 Connection failure of each harness of the fuser unit Reconnect each harness of the fuser unit. 2 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 3 Fuser unit failure Replace the fuser unit. 4 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 5 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 6 Main PCB failure Replace the main PCB ASSY.
  Note: – Turn OFF the power switch. After checking that the fuser unit has cooled sufficiently, turn ON the power switch again and leave the machine for ten minutes. This problem may then be cleared. – To clear the fuser unit error after the remedy of the error is taken, enter the maintenance mode and then exit from the maintenance mode using Function code 99.

• Code: 6902
• Display: Self-Diagnostic Will Automatically Restart within 15 minutes.
• Description: After the errors was detected at the fuser unit, power was turned ON again and the error is being checked. (If power is turned OFF and ON after error code 6901 occurred, this code is displayed for about 15 minutes.)
• Remedy: 1 Connection failure of each harness of the fuser unit Reconnect each harness of the fuser unit. 2 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 3 Fuser unit failure Replace the fuser unit. 4 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 5 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB unit. 6 Main PCB failure Replace the main PCB ASSY.
  Note: – Turn OFF the power switch. After checking that the fuser unit has cooled sufficiently, turn ON the power switch again and leave the machine for ten minutes. This problem may then be cleared. – To clear the fuser unit error after the remedy of the error is taken, enter the maintenance mode and then exit from the maintenance mode using Function code 99.

• Code: 6A00
• Display: Drum ! Slide the Blue tab on Drum Unit.
• Description: Electric discharge that may be caused by dirt on the corona wire of the drum unit was detected.
• Remedy: < User Check > – Clean the corona wire by sliding the blue tab of the drum unit for all four colors several times. – Clean the terminal of the drum unit. – Replace the drum unit.
  1 Dirt on the GRID terminals of the main body Clean the GRID terminals of the main body. 2 Dirt on the terminal of the high-voltage power supply PCB Clean the terminal of the high-voltage power supply PCB. 3 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 6B01
• Display: Drum Stop Replace the Drum Unit.
• Description: Electric discharge was detected when the number of the drum unit rotations had become more than twice of the upper limit.
• Remedy: < User Check > – Clean the corona wire by sliding the blue tab of the drum unit for all four colors several times. – Clean the terminal of the drum unit. – Replace the drum unit.
  1 Dirt on the GRID terminals of the main body Clean the GRID terminals of the main body. 2 Dirt on the terminal of the high-voltage power supply PCB Clean the terminal of the high-voltage power supply PCB. 3 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 6C02
• Display: Tray 2 Error Take out Tray 2 and push it back in firmly.
• Description: After the T2 paper tray unit is opened and closed or the power is turned ON, the T2 plate origin sensor detects that lift-up of the plate of the T2 paper tray unit is not completed within the specified period of time.
• Remedy: < User Check > – Open the T2 paper tray unit and close the T2 paper tray unit correctly.
  1 Connection failure of the T2 plate origin sensor harness Reconnect the T2 plate origin sensor harness. 2 T2 relay PCB failure Replace the T2 relay PCB ASSY. 3 T2 plate origin sensor failure Replace the T2 paper tray unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 6E00
• Display: Toner Error One or more Toner Cartridges are not detected. Pull out and reinsert all 4 Toner Cartridges.
• Description: The develop release sensor detected the developer roller disengagement or engagement failure.
• Remedy: 1 Connection failure of the develop release sensor harness Reconnect the develop release sensor harness. 2 Develop release sensor failure Replace the develop release sensor PCB ASSY. 3 Develop release clutch failure Replace the develop release drive unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 6F00
• Display: Print Unable ZC Turn the power off and then back on again.
• Description: Machine detected that supplied power was unstable. (Less than 100 times)
• Remedy: < User Check > – Turn the power switch OFF/ON. – Insert the filter into the power supply.
  1 The power supply waveform is incorrect Install a voltage stabilizer in the power supply part.

• Code: 7000
• Display: Jam Inside Open the Front Cover, pull out all four drum and toner cartridge assemblies and remove the jammed paper.
• Description: After the registration rear sensor detects paper pass, the eject sensor does not detect paper pass.
• Remedy: < User Check > – Remove the jammed paper.
  1 Foreign object inside machine Remove the foreign object. 2 Eject actuator that has come off or that has been caught Re-assemble the eject actuator. 3 Fuser cover installation failure Re-assemble the fuser cover. 4 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 5 Fuser drive gear Z25 damaged Replace the fuser drive gear Z25. 6 Process related feed gear damaged Replace the process drive unit. 7 Paper feed related gear damaged Replace the main drive unit. 8 Eject sensor failure Replace the eject sensor PCB ASSY. 9 Fuser unit failure Replace the fuser unit. 10 Main PCB failure Replace the main PCB ASSY.

• Code: 7100
• Display: Jam Rear Open the Back Cover and remove the jammed paper, then press [Start].
• Description: After the registration rear sensor detects the end of paper pass and the specified period of time has passed, the eject sensor continues to detect paper pass.
• Remedy: < User Check > – Remove the jammed paper. – Check if the back cover is not open during 2-sided printing.
  1 Foreign object at the back of the machine Remove the foreign object. 2 Eject actuator caught on some position Re-assemble the eject actuator. 3 Fuser cover installation failure Re-assemble the fuser cover. 4 Back cover installation failure Re-assemble the back cover. 5 Eject sensor failure Replace the eject sensor PCB ASSY. 6 Back cover failure Replace the back cover. 7 Fuser drive gear Z25 damaged Replace the fuser drive gear Z25. 8 Paper eject ASSY failure Replace the paper eject ASSY. 9 Paper feed related gear damaged Replace the main drive unit. 10 Fuser unit failure Replace the fuser unit. 11 Main PCB failure Replace the main PCB ASSY.

• Code: 7200
• Display: Jam MP Tray Remove the jammed paper from MP Tray and press [Retry].
• Description: When the paper is fed from the MP tray, after the MP registration front sensor detects paper pass, the registration rear sensor does not detect paper pass after a set period of time.
• Remedy: < User Check > – Remove the jammed paper. – Insert the papers straight using the paper guide of the MP tray. – Check if the papers loaded in the MP tray is not held down with your hand. – Check if the double feed occurs in the MP tray. – Check if the front cover is closed correctly. – Check if the machine is used with the MP tray support and MP flap are in closed state.
  1 Foreign object at the back of the machine Remove the foreign object. 2 Registration rear actuator that has come off or that has been caught Re-assemble the registration rear actuator. 3 Connection failure of the registration front/rear sensor PCB harness Reconnect the registration front/rear sensor PCB harness. 4 MP unit installation failure Re-assemble the MP unit. 5 MP separation pad worn out Replace the PF kit MP. 6 Registration rear sensor failure Replace the registration front/rear sensor PCB. 7 Paper feed related gear damaged Replace the main drive unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 7300
• Display: Jam Tray 1 Pull the paper tray1 completely out of the machine and remove the jammed paper.
• Description: In the case of printing by feeding paper from the paper tray 1, after the T1 paper feed sensor detects paper pass, the registration front sensor does not detect paper pass after a set period of time.
• Remedy: < User Check > – Remove the jammed paper. – Check if the paper tray 1 is closed correctly.
  1 Foreign object at the front of the paper tray 1 Remove the foreign object. 2 T1 paper dust cleaning roller installation failure Re-assemble the T1 paper dust cleaning roller. 3 Registration front actuator that has come off or that has been caught Re-assemble the registration front actuator. 4 Connection failure of the registration front/rear sensor PCB harness Reconnect the registration front/rear sensor PCB harness. 5 Registration front sensor failure Replace the registration front/rear sensor PCB ASSY. 6 Paper feed related gear damaged Replace the main drive unit. 7 Main PCB failure Replace the main PCB ASSY.

• Code: 7400
• Display: Jam Tray 2 Pull the paper tray2 completely out of the machine and remove the jammed paper.
• Description: In the case of printing by feeding paper from the T2 paper tray unit, after the T2 paper feed sensor detects paper pass, the registration front sensor does not detect paper pass after a set period of time.
• Remedy: < User Check > – Remove the jammed paper. – Close the paper tray 1 and T2 paper tray unit correctly.
  1 Foreign object at the front of the paper tray 1 Remove the foreign object. 2 Foreign object at the front of the T2 paper tray unit Remove the foreign object. 3 T1/T2 paper dust cleaning roller installation failure Re-assemble the T1/T2 paper dust cleaning roller. 4 Registration front actuator that has come off or that has been caught Re-assemble the registration front actuator. 5 Connection failure of the registration front/rear sensor PCB harness Reconnect the registration front/rear sensor PCB harness. 6 Registration front sensor failure Replace the registration front/rear sensor PCB ASSY. 7 Paper feed related gear damaged Replace the main drive unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: 7700
• Display: Jam 2-sided Pull the paper tray completely out of the machine. Check inside the machine towards the rear. Or open the Back Cover to remove the jammed paper.
• Description: After the first side is printed in 2-sided printing mode, the registration front sensor does not detect paper pass after a set period of time.
• Remedy: < User Check > – Remove the jammed paper. – Check if the back cover is closed correctly. – Check if the paper tray 1 is closed correctly.
  1 Foreign object inside the duplex path Remove the foreign object. 2 Foreign object inside the duplex path of the paper tray 1 Remove the foreign object. 3 Fuser cover installation failure Re-assemble the fuser cover. 4 Back cover installation failure Re-assemble the back cover. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 8402
• Display: No Tray The paper tray cannot be detected, re-install Tray2.
• Description: While the T2 paper tray unit is open state, print or adjustment operation was attempted.
• Remedy: < User Check > – Check if the T2 paper tray unit is closed correctly.
  1 T2 paper feed actuator that has come off or that has been caught Re-assemble the T2 paper feed actuator. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 8501
• Display: No Tray The paper tray cannot be detected, re-install Tray1.
• Description: The T1 paper feed sensor detected that the paper tray 1 is open in 2-sided printing or printing by feeding paper from the T2 paper tray unit. (before the registration of printing in the engine)
• Remedy: < User Check > – Check if the paper tray 1 is closed correctly.
  1 T1 paper feed actuator that has come off or that has been caught Re-assemble the T1 paper feed actuator. 2 Connection failure of the T1 paper feed sensor PCB harness Reconnect the T1 paper feed sensor PCB harness. 3 T1 paper feed sensor failure Replace the T1 paper feed sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 8505
• Display: No Tray The paper tray cannot be detected, re-install Tray1.
• Description: The T1 paper feed sensor detected that the paper tray 1 is open in 2-sided printing or printing by feeding paper from the T2 paper tray unit. (after the registration of printing in the engine)
• Remedy: < User Check > – Check if the paper tray 1 is closed correctly.
  1 T1 paper feed actuator that has come off or that has been caught Re-assemble the T1 paper feed actuator. 2 Connection failure of the T1 paper feed sensor PCB harness Reconnect the T1 paper feed sensor PCB harness. 3 T1 paper feed sensor failure Replace the T1 paper feed sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 8903
• Display: 2-sided Disabled Close the Back Cover of the Machine.
• Description: The back cover sensor detected the open state when 2-sided printing is started. (before the registration of printing in the engine)
• Remedy: < User Check > – Close the back cover.
  1 Connection failure of the back cover sensor harness Reconnect the back cover sensor harness. 2 Back cover sensor installation failure Re-assemble the back cover sensor. 3 Breakage of boss that presses the back cover sensor Replace the back cover. 4 Back cover sensor failure Replace the back cover sensor ASSY. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 8904
• Display: 2-sided Disabled Close the Back Cover of the Machine.
• Description: The back cover sensor detected the open state during 2-sided printing. (after the registration of printing in the engine)
• Remedy: < User Check > – Close the back cover.
  1 Connection failure of the back cover sensor harness Reconnect the back cover sensor harness. 2 Back cover sensor installation failure Re-assemble the back cover sensor. 3 Breakage of boss that presses the back cover sensor Replace the back cover. 4 Back cover sensor failure Replace the back cover sensor ASSY. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 8A01
• Display: Size Error 2-sided Specify the correct paper.
• Description: The registration rear sensor detected that the fed paper was larger or smaller than the specified size in 2-sided printing.
• Remedy: < User Check > – Use the Letter to Legal size paper.
  1 Registration rear actuator caught on some position Re-assemble the registration rear actuator. 2 Registration rear sensor failure Replace the registration front/rear sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 8A02
• Display: 2-sided Disabled Reload paper, then press Start.
• Description: The registration rear sensor detected that the length of the paper is too long and it may hit within the machine in 2-sided printing.
• Remedy: < User Check > – Use the Letter to Legal size paper.
  1 Registration rear actuator caught on some position Re-assemble the registration rear actuator. 2 Registration rear sensor failure Replace the registration front/rear sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 8D01
• Display: Short paper Open the Back Cover and then press [Retry].
• Description: The registration rear sensor detected that the paper loaded in the paper tray was smaller than the specified size.
• Remedy: < User Check > – Open the back cover and print using the straight paper path. – Length of the paper is 114 mm or more.
  1 Registration rear actuator caught on some position Re-assemble the registration rear actuator. 2 Registration rear sensor failure Replace the registration front/rear sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 8D02
• Display: Small paper Open the Back Cover and then press [Retry].
• Description: The paper size which is not supported by the output tray is set for printing from the printer driver.
• Remedy: < User Check > – The size of paper actually loaded and the one specified from the driver shall be the one within the specified range. – Open the back cover and print using the straight paper path.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: 8E02
• Display: Size Mismatch Reload correct paper.
• Description: Upon fax reception, the paper size setting is the one other than A4, Letter, Legal, and Folio.
• Remedy: < User Check > – Set the paper size of the driver to A4, Letter, Legal, or Folio.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: 9001
• Display: Size mismatch Reload correct paper in MP Tray, then press [Retry].
• Description: The size of paper loaded in the MP tray and the one specified from the driver are not same when paper is fed from the MP tray.
• Remedy: < User Check > – When specifying the paper in the driver, set the paper size of the paper that is actually set.
  1 Registration rear actuator caught on some position Re-assemble the registration rear actuator. 2 Registration rear sensor failure Replace the registration front/rear sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 9002
• Display: Size mismatch Reload correct paper in Tray1,then press [Retry].
• Description: The size of paper loaded in the paper tray 1 and the one specified from the driver are not same when paper is fed from the paper tray 1.
• Remedy: < User Check > – When specifying the paper in the driver, set the paper size of the paper that is actually set.
  1 Registration rear actuator caught on some position Re-assemble the registration rear actuator. 2 Registration rear sensor failure Replace the registration front/rear sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 9003
• Display: Size mismatch Reload correct paper in Tray2,then press [Retry].
• Description: The size of paper loaded in the T2 paper tray unit and the one specified from the driver are not same when paper is fed from the T2 paper tray unit.
• Remedy: < User Check > – When specifying the paper in the driver, set the paper size of the paper that is actually set.
  1 Registration rear actuator caught on some position Re-assemble the registration rear actuator. 2 Registration rear sensor failure Replace the registration front/rear sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 9301
• Display: No Paper Reload paper in MP Tray.
• Description: When paper was fed from the MP tray, the MP paper empty sensor detected that no paper was in the MP tray.
• Remedy: < User Check > – Load paper to the MP tray.
  1 MP paper empty actuator caught on some position Re-assemble the MP paper empty actuator. 2 Connection failure of the MP paper empty/registration front sensor PCB harness Reconnect the MP paper empty/ registration front sensor PCB harness. 3 MP paper empty sensor failure Replace the MP paper empty/registration front sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 9302
• Display: No Paper Reload paper in Tray 1.
• Description: When paper was fed from the paper tray 1, the T1 paper feed sensor detected that no paper was in the paper tray 1.
• Remedy: < User Check > – Load paper to the paper tray.
  1 T1 paper feed actuator caught on some position Re-assemble the T1 paper feed actuator. 2 Connection failure of the T1 paper feed sensor PCB harness Reconnect the T1 paper feed sensor PCB harness. 3 T1 paper feed sensor failure Replace the T1 paper feed sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 9303
• Display: No Paper Reload paper in Tray 2.
• Description: When paper was fed from the T2 paper tray unit, the T2 paper feed sensor detected that no paper was in the T2 paper tray unit.
• Remedy: < User Check > – Load paper to the paper tray.
  1 T2 paper feed actuator caught on some position Re-assemble the T2 paper feed actuator. 2 Connection failure of the T2 paper feed sensor PCB harness Reconnect the T2 paper feed sensor PCB harness. 3 Connection failure of the T2 relay PCB harness Reconnect the T2 relay PCB harness. 4 T2 relay PCB failure Replace the T2 relay PCB ASSY. 5 T2 connector failure Replace the T2 paper tray unit. 6 Main PCB failure Replace the main PCB ASSY.

• Code: 9306
• Display: No Paper Reload paper in Tray.
• Description: For printing specifying Auto, it was detected that no paper was loaded in any of the paper trays.
• Remedy: < User Check > – Load paper to any tray.
  1 MP paper empty actuator caught on some position Re-assemble the MP paper empty actuator. 2 T1 paper feed actuator caught on some position Re-assemble the T1 paper feed actuator. 3 T2 paper feed actuator caught on some position Re-assemble the T2 paper feed actuator. 4 Connection failure of the MP paper empty/registration front sensor PCB harness Reconnect the MP paper empty/ registration front sensor PCB harness. 5 Connection failure of the T1 paper feed sensor PCB harness Reconnect the T1 paper feed sensor PCB harness. 6 Connection failure of the T2 paper feed sensor PCB harness Reconnect the T2 paper feed sensor PCB harness. 7 MP paper empty sensor failure Replace the MP paper empty/registration front sensor PCB ASSY. 8 T1 paper feed sensor failure Replace the T1 paper feed sensor PCB ASSY. 9 T2 connector failure Replace the T2 paper tray unit. 10 Main PCB failure Replace the main PCB ASSY.

• Code: 9307
• Display: No Paper Load paper in Tray.
• Description: Upon receiving a fax or printing a list or report, the machine detected that paper tray empty of paper.
• Remedy: < User Check > – Load paper to any tray.
  1 MP paper empty actuator caught on some position Re-assemble the MP paper empty actuator. 2 T1 paper feed actuator caught on some position Re-assemble the T1 paper feed actuator. 3 T2 paper feed actuator caught on some position Re-assemble the T2 paper feed actuator. 4 Connection failure of the MP paper empty/registration front sensor PCB harness Reconnect the MP paper empty/ registration front sensor PCB harness. 5 Connection failure of the T1 paper feed sensor PCB harness Reconnect the T1 paper feed sensor PCB harness. 6 Connection failure of the T2 paper feed sensor PCB harness Reconnect the T2 paper feed sensor PCB harness. 7 MP paper empty sensor failure Replace the MP paper empty/registration front sensor PCB ASSY. 8 T1 paper feed sensor failure Replace the T1 paper feed sensor PCB ASSY. 9 T2 connector failure Replace the T2 paper tray unit. 10 Main PCB failure Replace the main PCB ASSY.

• Code: 9701
• Display: Size Error 2-sided Press [OK]. Specify the correct paper and load the same size paper as the Printer driver setting.
• Description: For 2-sided printing, the tray whose paper size was not supported by 2-sided printing was selected.
• Remedy: < User Check > – The size of the paper specified from the driver shall be A4 or Letter size and load the same size of paper to the specified paper tray.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: 9702
• Display: Size Error Specify the correct paper size for Tray 1.
• Description: For printing by feeding paper from the paper tray 1, the size of paper specified from the driver set the size which was not supported by the paper tray 1.
• Remedy: < User Check > – The size of the paper specified from the driver shall be A4 or Letter size and load the same size of paper to the specified paper tray.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: 9703
• Display: Size Error Specify the correct paper size for Tray 2.
• Description: For printing by feeding paper from the T2 paper tray unit, the size of paper specified from the driver set the size which was not supported by the T2 paper tray unit.
• Remedy: < User Check > – The size of the paper specified from the driver shall be A4 or Letter size and load the same size of paper to the specified paper tray.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: 9801
• Display: Calibration Calibration failed. Turn the power off and then back on again.
• Description: Error occurred with the value measured during color density adjustment performed from the control panel.
• Remedy: < User Check > – Check if the toner cartridges are set in the correct order of colors. – Replace the toner cartridge. – Replace the drum unit. – If the belt unit has a scratch, replace it. – If “WT Box End Soon” is displayed on the LCD and the belt unit has dirt, replace the waste toner box.
  1 Dirt on the registration mark sensor L Clean the registration mark sensor L. 2 Failure in printed measurement pattern image If failure occurs when printing 2D3S YMCBWKW_A in Function code 71. 3 Connection failure of the registration mark sensor L PCB harness Reconnect the registration mark sensor L PCB harness. 4 Density sensor failure Replace the registration mark sensor unit. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 9802
• Display: Calibration Calibration failed. Insufficient Toner for Calibration.
• Description: Dot counter or develop roller counter of color toner has reached the upper limit during color density adjustment performed from the control panel.
• Remedy: < User Check > – Replace the corresponding toner cartridge.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: 9803
• Display: Calibration Calibration failed. Press [Retry], and try again.
• Description: Density patch measurement ended unsuccessfully during color density adjustment performed from the control panel.
• Remedy: < User Check > – Check if the toner cartridges are set in the correct order of colors. – Replace the toner cartridge. – Replace the drum unit. – If the belt unit has a scratch, replace it. – If “WT Box End Soon” is displayed on the LCD and the belt unit has dirt, replace the waste toner box.

• Code: 9804
• Display: Calibration Calibration failed. Press [Retry], and try again.
• Description: Error occurred with the value measured during density sensor sensitivity calibration.
• Remedy: 1 Dirt on the registration mark sensor L Clean the registration mark sensor L. 2 Failure in printed measurement pattern image If failure occurs when printing “2D3S YMCBWKW_A” in “Function code 71”. 3 Connection failure of the registration mark sensor L PCB harness Reconnect the registration mark sensor L PCB harness. 4 Density sensor failure Replace the registration mark sensor unit. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 9A01
• Display: Registration Registration failed. Turn the power off and then back on again.
• Description: Error occurred with the value measured during auto color registration performed from the control panel.
• Remedy: < User Check > – Check if the toner cartridges are set in the correct order of colors. – Replace the toner cartridge. – Replace the drum unit. – If the belt unit has a scratch, replace it. – If “WT Box End Soon” is displayed on the LCD and the belt unit has dirt, replace the waste toner box.
  1 Dirt on the registration mark sensor L/registration mark sensor R Clean the registration mark sensor L/ registration mark sensor R. 2 Connection failure of the registration mark sensor L PCB/ registration mark sensor R PCB harness Reconnect the registration mark sensor L PCB/registration mark sensor R PCB harness. 3 Failure in printed measurement pattern image If failure occurs when printing “2D3S YMCBWKW_A” in “Function code 71”. 4 Registration mark sensor L or registration mark sensor R failure Replace the registration mark sensor unit. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 9A02
• Display: Registration Registration failed. Insufficient Toner for Registration.
• Description: Dot counter or develop roller counter of color toner has reached the upper limit during auto color registration performed from the control panel.
• Remedy: < User Check > – Replace the corresponding toner cartridge.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: 9A03
• Display: Registration Registration failed. Press [Retry], and try again.
• Description: Error occurred during patch data printing in auto color registration performed from the control panel.
• Remedy: < User Check > – Check if the toner cartridges are set in the correct order of colors. – Replace the toner cartridge. – Replace the drum unit. – If the belt unit has a scratch, replace it. – If “WT Box End Soon” is displayed on the LCD and the belt unit has dirt, replace the waste toner box.
  1 Dirt on the registration mark sensor L/registration mark sensor R Clean the registration mark sensor L/ registration mark sensor R. 2 Connection failure of the registration mark sensor L PCB/ registration mark sensor R PCB harness Reconnect the registration mark sensor L PCB/registration mark sensor R PCB harness. 3 Failure in printed measurement pattern image If failure occurs when printing “2D3S YMCBWKW_A” in “Function code 71”. 4 Registration mark sensor L or registration mark sensor R failure Replace the registration mark sensor unit. 5 Main PCB failure Replace the main PCB ASSY.

• Code: A000
• Display: Scan Unable Remove the original document. Turn the power off, then on again.
• Description: Upon scanning the second side in duplex scanning, scanned data cannot be output with the required number of pixels and image processing is not completed successfully.
• Remedy: 1 Second side CIS unit calibration data error Perform “Function code 55”. 2 Second side CIS unit failure Replace the second side CIS unit. 3 Main PCB failure Replace the main PCB ASSY.

• Code: A200
• Display: Document Jam Clear the scanner jam, then press the Stop Key.
• Description: During document scanning, the first side document scanning position sensor detected that the document length was 90 cm or more.
• Remedy: < User Check > – Use documents equal to or smaller than A4 size. – Remove the jammed paper.
  1 First side document scanning position actuator catching on some position Re-assemble the first side document scanning position actuator. 2 First side document scanning position sensor failure Replace the first side document scanning position sensor PCB. 3 Main PCB failure Replace the main PCB ASSY.

– 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

• Code: A300
• Display: Document Jam Clear the scanner jam, then press the Stop Key.
• Description: Though a document was fed and conveyed by the specified distance or longer, the first side document scanning position sensor did not detect the passing of the paper.
• Remedy: < User Check > – Match the document guide with the document size. – Remove the jammed paper.
  1 First side document scanning position actuator catching on some position Re-assemble the first side document scanning position actuator. 2 Connection failure of the first side document scanning position sensor PCB harness Reconnect the first side document scanning position sensor PCB harness. 3 First side document scanning position sensor failure Replace the first side document scanning position sensor PCB. 4 Main PCB failure Replace the main PCB ASSY.

• Code: A400
• Display: Cover is Open Close the ADF Cover. / Close the ADF Cover, then press Stop[X].
• Description: The ADF cover sensor detected that the ADF cover was opened.
• Remedy: < User Check > – Firmly close the ADF cover.
  1 ADF cover actuator caught on some position Re-assemble the ADF cover actuator. 2 ADF cover/document detection sensor PCB installation failure Re-assemble the ADF cover/document detection sensor PCB ASSY. 3 Connection failure of the ADF cover/document detection sensor PCB harness Reconnect the ADF cover/document detection sensor PCB harness. 4 ADF cover damaged Replace the ADF cover. 5 ADF cover sensor failure Replace the ADF cover/document detection sensor PCB ASSY. 6 Main PCB failure Replace the main PCB ASSY.

• Code: A500
• Display: Scan Unable Remove the original document. Turn the power off, then on again.
• Description: Upon scanning a fax, the first side CIS white or black calibration data was not within the normal range.
• Remedy: 1 First side CIS unit calibration data error Perform “Function code 55”. 2 First side CIS flat cable damaged Replace the first side CIS flat cable. 3 First side CIS unit failure Replace the first side CIS unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: A600
• Display: Scan Unable A6 Turn the power off and then back on again.
• Description: Though a fax was scanned again after A500 error, the first side CIS white or black calibration data was not within the normal range.
• Remedy: 1 First side CIS unit calibration data error Perform “Function code 55”. 2 First side CIS flat cable damaged Replace the first side CIS flat cable. 3 First side CIS unit failure Replace the first side CIS unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: A700
• Display: Print Unable A7 Turn the power off and then back on again.
• Description: The ROM color parameter does not match the first side CIS or second side CIS.
• Remedy: 1 First side or second side CIS unit calibration data error Perform “Function code 55”. 2 First side CIS flat cable damaged Replace the first side CIS flat cable. 3 Second side CIS flat cable damaged Replace the second side CIS flat cable. 4 First side CIS unit failure Replace the first side CIS unit. 5 Second side CIS unit failure Replace the second side CIS unit. 6 Main PCB failure Replace the main PCB ASSY.

• Code: A900
• Display: Scan Unable A9
• Description: When an image was scanned and processed, a scanning error occurred.
• Remedy: 1 First side or second side CIS unit calibration data error Perform “Function code 55”. 2 First side CIS flat cable damaged Replace the first side CIS flat cable. 3 Second side CIS flat cable damaged Replace the second side CIS flat cable. 4 First side CIS unit failure Replace the first side CIS unit. 5 Second side CIS unit failure Replace the second side CIS unit. 6 Main PCB failure Replace the main PCB ASSY.

• Code: AC00
• Display: Scan Unable Remove the original document. Turn the power off, then on again.
• Description: Upon scanning a fax, the second side white or black calibration data was not within the normal range.
• Remedy: 1 Second side CIS unit calibration data error Perform “Function code 55”. 2 Second side CIS flat cable damaged Replace the second side CIS flat cable. 3 Second side CIS unit failure Replace the second side CIS unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: AD00
• Display: Scan Unable Remove the original document. Turn the power off, then on again.
• Description: First side scanned data cannot be output with the required number of pixels, and image processing cannot be completed successfully.
• Remedy: 1 First side CIS unit calibration data error Perform “Function code 55” 2 First side CIS flat cable damaged Replace the first side CIS flat cable. 3 First side CIS unit failure Replace the first side CIS unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: AF00
• Display: Scan Unable AF Turn the power off and then back on again.
• Description: The first side CIS fails to move, remaining at the home position.
• Remedy: 1 Dust adhered to guide shaft Remove the dust from the guide shaft. 2 Coming off of CIS drive belt Re-assemble the CIS drive belt. 3 Wiring failure of first side CIS flat cable Re-assemble the first side CIS flat cable. 4 Connection failure of the document scanner motor harness Reconnect the document scanner motor harness. 5 First side CIS flat cable damaged Replace the first side CIS flat cable. 6 First side CIS unit failure Replace the first side CIS unit. 7 Document scanner motor failure Replace the document scanner unit. 8 Main PCB failure Replace the main PCB ASSY.

• Code: B000
• Display: SCANNER ERROR FB / SCANNER ERROR ADF
• Description: The first or second side CIS flat cable was detected to be not inserted correctly.
• Remedy: 1 Connection failure of the first side CIS flat cable Reconnect the first side CIS flat cable. 2 Connection failure of the second side CIS flat cable Reconnect the second side CIS flat cable. 3 First side CIS flat cable damaged Replace the first side CIS flat cable. 4 Second side CIS flat cable damaged Replace the second side CIS flat cable. 5 First side CIS unit failure Replace the first side CIS unit. 6 Second side CIS unit failure Replace the second side CIS unit. 7 Main PCB failure Replace the main PCB ASSY.

• Code: BB00
• Display: Scanner Error BB
• Description: The white level value obtained with function code 55 was outside the specified range.
• Remedy: 1 First side or second side CIS unit calibration data error Perform “Function code 55”. 2 First side CIS flat cable damaged Replace the first side CIS flat cable. 3 Second side CIS flat cable damaged Replace the second side CIS flat cable. 4 First side CIS unit failure Replace the first side CIS unit. 5 Second side CIS unit failure Replace the second side CIS unit. 6 Main PCB failure Replace the main PCB ASSY.

• Code: BC00
• Display: Scan Unable BC Turn the power off and then back on again.
• Description: Though a fax was scanned again after AC00 error, the second side white or black calibration data was not within the normal range.
• Remedy: 1 Second side CIS unit calibration data error Perform “Function code 55”. 2 Second side CIS flat cable damaged Replace the second side CIS flat cable. 3 Second side CIS unit failure Replace the second side CIS unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: BD00
• Display: Scanner Error BD
• Description: The black level value obtained with function code 55 was outside the specified range.
• Remedy: 1 First side or second side CIS unit calibration data error Perform “Function code 55”. 2 First side CIS flat cable damaged Replace the first side CIS flat cable. 3 Second side CIS flat cable damaged Replace the second side CIS flat cable. 4 First side CIS unit failure Replace the first side CIS unit. 5 Second side CIS unit failure Replace the second side CIS unit. 6 Main PCB failure Replace the main PCB ASSY.

• Code: BF00
• Display: Scan Unable Document is too longfor 2-sided scanning. Press Stop key.
• Description: The first side document scanning position sensor detected that the document was 400 mm or more in length and could not be fed from the ADF in duplex feeding.
• Remedy: < User Check > – Use A4 or Letter size document. – Remove the jammed paper.
  1 First side document scanning position actuator catching on some position Re-assemble the first side document scanning position actuator. 2 First side document scanning position sensor failure Replace the first side document scanning position sensor PCB. 3 Main PCB failure Replace the main PCB ASSY.

• Code: C001
• Display: Log Access Error. Server Timeout, contact your administrator.
• Description: Timeout occurred with access request sent to server due to incorrect server address, network disconnection, or inactive server.
• Remedy: < User Check > – Refer to User’s guide and reconfigure network settings. – Check the wiring of the LAN cables. – Check the wireless LAN settings.
  1 Connection failure of the wireless LAN PCB connector Reconnect the Wireless LAN PCB connector. 2 Wireless LAN PCB failure Replace the wireless LAN PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: C002
• Display: Log Access Error. Authentication Error, contact your administrator.
• Description: User authentication is unavailable due to incorrect user name, incorrect password, or asynchronous date and time between the machine and server.
• Remedy: < User Check > – Refer to User’s guide and reconfigure network settings. – Check the wiring of the LAN cables. – Check the wireless LAN settings.
  1 Connection failure of the wireless LAN PCB connector Reconnect the Wireless LAN PCB connector. 2 Wireless LAN PCB failure Replace the wireless LAN PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: C003
• Display: Log Access Error. File Access Error, contact your administrator.
• Description: Access to a file is unavailable due to incorrect directory name, no write permission on directory, file write lock, or no write permission on file.
• Remedy: < User Check > – Refer to User’s guide and reconfigure network settings. – Check the wiring of the LAN cables. – Check the wireless LAN settings.
  1 Connection failure of the wireless LAN PCB connector Reconnect the Wireless LAN PCB connector. 2 Wireless LAN PCB failure Replace the wireless LAN PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: C004
• Display: Log Access Error. Wrong Date&Time, contact your administrator.
• Description: The current time necessary for user authentication is unavailable due to time not being obtained.
• Remedy: < User Check > – Refer to User’s guide and reconfigure network settings. – Check the wiring of the LAN cables. – Check the wireless LAN settings.
  1 Connection failure of the wireless LAN PCB connector Reconnect the Wireless LAN PCB connector. 2 Wireless LAN PCB failure Replace the wireless LAN PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: C700
• Display: Out of Memory Press Stop Key
• Description: The memory is insufficient to expand the data of PC-Print.
• Remedy: < User Check > – Print the print data stored in the memory. – Divide the print data and print it.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: C800
• Display: Print Data Full Print Data is full. Press Stop[X] Key and delete the previously stored data.
• Description: The memory used to store secure print data exceeded the memory size for secure print data.
• Remedy: < User Check > – Print the print data stored in the memory. – Divide the print data and print it.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: D100
• Display: Print Unable D1 Turn the power off and then back on again.
• Description: An error occurred during modem initialization.
• Remedy: 1 Connection failure of the modem PCB flat cable Reconnect the modem PCB flat cable. 2 Modem PCB failure Replace the modem PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: D200
• Display: Machine Error
• Description: The machine detected that the modem PCB was disconnected.
• Remedy: 1 Connection failure of the modem PCB flat cable Reconnect the modem PCB flat cable. 2 Modem PCB failure Replace the modem PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: D800
• Display: Touchscreen initialization failed Remove any material which is on the touchscreen.
• Description: Error occurred during touch panel initialization.
• Remedy: 1 The version of the panel firmware and the main firmware do not match Install the latest panel firmware and main firmware. 2 Connection failure of the panel PCB harness Reconnect the panel PCB harness. 3 Connection failure of the touch panel flat cable Reconnect the touch panel flat cable. 4 Connection failure of the Key PCB flat cable Reconnect the key PCB flat cable. 5 Panel PCB failure Replace the panel PCB unit. 6 Touch panel ASSY failure Replace the touch panel ASSY. 7 Key PCB failure Replace the panel cover ASSY. 8 Main PCB failure Replace the main PCB ASSY.

• Code: D900
• Display:
• Description: Communication between the panel PCB and main PCB is unavailable during touch panel initialization.
• Remedy: 1 The version of the panel firmware and the main firmware do not match Install the latest panel firmware and main firmware. 2 Connection failure of the panel PCB harness Reconnect the panel PCB harness. 3 Connection failure of the touch panel flat cable Reconnect the touch panel flat cable. 4 Connection failure of the Key PCB flat cable Reconnect the key PCB flat cable. 5 Panel PCB failure Replace the panel PCB unit. 6 Touch panel ASSY failure Replace the touch panel ASSY. 7 Key PCB failure Replace the panel cover ASSY. 8 Main PCB failure Replace the main PCB ASSY.

• Code: DA00
• Display:
• Description: After the initialization of the panel PCB, no response was sent from the panel PCB for a period of time.
• Remedy: 1 The version of the panel firmware and the main firmware do not match Install the latest panel firmware and main firmware. 2 Connection failure of the panel PCB harness Reconnect the panel PCB harness. 3 Connection failure of the touch panel flat cable Reconnect the touch panel flat cable. 4 Connection failure of the Key PCB flat cable Reconnect the key PCB flat cable. 5 Panel PCB failure Replace the panel PCB unit. 6 Touch panel ASSY failure Replace the touch panel ASSY. 7 Key PCB failure Replace the panel cover ASSY. 8 Main PCB failure Replace the main PCB ASSY.

• Code: DB00
• Display: Print Unable DB Turn the power off and then back on again.
• Description: USB communication between the main PCB and panel PCB is unavailable.
• Remedy: 1 The version of the panel firmware and the main firmware do not match Install the latest panel firmware and main firmware. 2 Connection failure of the panel PCB harness Reconnect the panel PCB harness. 3 Connection failure of the touch panel flat cable Reconnect the touch panel flat cable. 4 Connection failure of the Key PCB flat cable Reconnect the key PCB flat cable. 5 Panel PCB failure Replace the panel PCB unit. 6 Touch panel ASSY failure Replace the touch panel ASSY. 7 Key PCB failure Replace the panel cover ASSY. 8 Main PCB failure Replace the main PCB ASSY.

• Code: E000
• Display: Print Unable E0 Turn the power off and then back on again.
• Description: Some ROM checksum error occurred.
• Remedy: < User Check > – Install the latest firmware.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: E100
• Display: Print Unable E1 Turn the power off and then back on again.
• Description: Program error.
• Remedy: < User Check > – Install the latest firmware.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: E400
• Display: Print Unable E4 Turn the power off and then back on again.
• Description: The failed DIMM is installed, or the DIMM is not installed correctly.
• Remedy: < User Check > – Install the DIMM correctly. – Install the latest firmware
  1 Main PCB failure Replace the main PCB ASSY.

• Code: E500
• Display: Print Unable E5 Turn the power off and then back on again.
• Description: Error occurred when DRAM on the main PCB ASSY was accessed.
• Remedy: 1 Main PCB failure Replace the main PCB ASSY.

• Code: E600
• Display: Print Unable E6 Turn the power off and then back on again.
• Description: Error occurred during writing to EEPROM on the main PCB ASSY.
• Remedy: 1 Main PCB failure Replace the main PCB ASSY.

• Code: E701
• Display: Print Unable E7 Turn the power off and then back on again.
• Description: Operation failure of the file system of the flash ROM on the main PCB.
• Remedy: 1 Main PCB failure Replace the main PCB ASSY.

• Code: E702
• Display: Print Unable E7 Turn the power off and then back on again.
• Description: Error occurred during reading from the flash ROM on the main PCB.
• Remedy: 1 Main PCB failure Replace the main PCB ASSY.

• Code: E900
• Display: Print Unable E9 Turn the power off and then back on again.
• Description: NFC PCB initialization failed.
• Remedy: 1 Connection failure of the NFC PCB flat cable Reconnect the NFC PCB flat cable. 2 Connection failure of the panel PCB harness Reconnect the panel PCB harness. 3 Panel PCB failure Replace the panel PCB unit. 4 NFC PCB failure Replace the NFC PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.

• Code: EC00
• Display: Unusable Device Remove the Device. Turn the power off and back on again.
• Description: Overcurrent was caused because a USB device that did not meet the specifications was inserted into the USB port.
• Remedy: < User Check > – Remove the USB device from the USB port and turn the power OFF. Turn it ON again after a while. – Replace the USB device with another one.
  1 USB host relay PCB failure Replace the joint cover USB ASSY. 2 Main PCB failure Replace the main PCB ASSY.

• Code: F900
• Display:
• Description: Setting by spec code is not entered.
• Remedy: 1 During function code 74, power is turned OFF. Enter the Setting by spec code again. (Function code 74) 2 Main PCB failure Replace the main PCB ASSY.

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
2. Press and hold the Resume/Cancel/Stop button
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

– Get more information about Epson XP 15000 troubleshooting, click here
– Buy cheap key of Epson WIC Reset Tool, CLICK HERE
– Key Epson Adjustment Program, CLICK HERE
https://dnasofts.com/download-epson-xp-6100-driver-firmware-and-manuals/

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