Close the back cover of the machine until it locks in the closed position.

Ask your administrator to check your Secure Function Lock Settings.

Order a new belt unit before the LCD displays Replace Belt.

• Press and hold down to turn the machine off. Wait a few seconds, and then turn it on again. Perform the colour calibration again using the LCD.

• Install a new belt unit.

• If the problem continues, contact Brother customer service or your local Brother dealer.

Remove the toner cartridge and drum unit assembly for the colour that is indicated on the LCD. Take out the toner cartridge, and put it back into the drum unit again. Re-install the toner cartridge and drum unit assembly back in the machine.

See Related Information: Replace the Toner Cartridge.

• Press and hold to turn the machine off, wait a few minutes, and then turn it on again.

• If the problem continues, contact Brother customer service or your local Brother dealer.

• Press and hold to turn the machine off, and then turn it on again.
• If the problem continues, contact Brother customer service or your local Brother dealer.

Remove the toner cartridge and drum unit assembly for the colour that is indicated on the LCD. Take out the toner cartridge, and put it back into the drum unit again. Re-install the toner cartridge and drum unit assembly back in the machine.

If the problem continues, contact Brother customer service or your local Brother dealer.

Leave the machine turned on. Wait for 30 minutes with the top cover in the open position. Then turn off the machine and close the cover. Turn it on again.

Wait until the machine has finished cooling down. Make sure all vents on the machine are clear of obstructions.

When the machine has cooled down, it will resume printing.

Open and then firmly close the top cover of the machine.

Close the fuser cover located under the back cover of the machine.

Clean the corona wire on the drum unit.

See Related Information: Clean the Corona Wires.

If the problem continues, replace the drum unit with a new one.

Order a new drum unit before you get the Replace Drum message.

Replace the drum unit.

See Related Information: Replace the Drum Unit.

Remove the 2-sided tray and open the back cover to pull out all jammed paper.

Open the top cover, remove the toner cartridge and drum unit assemblies, and gently remove the jammed paper. Reinstall the toner cartridge and drum unit assemblies into the machine. Close the top cover.

Gently remove the jammed paper from in and around the manual feed slot. Reload the paper into the manual feed slot, and then press Mono Start or Colour Start.

Open the fuser cover and gently remove the jammed paper. Close the fuser cover. If the error message remains, press Mono Start or Colour Start.

Pull the paper tray out completely and gently remove all jammed paper. Put the paper tray firmly back in the machine.

Ask your administrator to check your Secure Function Lock Settings.

Place paper in the manual feed slot.

Load the correct type of paper in the tray, and then select the correct media type in the Paper Type setting on the machine.

Reinstall the belt unit.

Reinstall the toner cartridge and drum unit assembly for the colour indicated on the LCD.

• Refill paper in the paper tray. Make sure the paper guides are set to the correct size.
• If paper is in the tray, remove it and load it again. Make sure the paper guides are set to the correct size.
• Do not overfill the paper tray.

Remove the toner cartridge and drum unit assembly. Remove the toner cartridge from the drum unit, and reinstall the toner cartridge back into the drum unit. Reinstall the toner cartridge and drum unit assembly back in the machine. If the problem continues, replace the toner cartridge.

Reinstall the paper tray indicated on the LCD.

Reinstall the waste toner box.

If a copy operation is in progress, do one of the following:

• Press Mono Start or Colour Start to copy the scanned pages.
• Press Stop/Exit and wait until the other operations in progress finish, and then try again.

• Split the document into multiple parts.
• Reduce the Resolution.
• Reduce the File Size.
• Select the high compression PDF file type.

If a print operation is in progress, press Stop/Exit, and then reduce the print resolution.

Press Stop/Exit and delete the previously stored secure print data.

• Press and hold down to turn the machine off. Wait a few seconds, and then turn it on again. Perform the colour registration again using the LCD.

• Install a new belt unit.

• If the problem continues, contact Brother customer service or your local Brother dealer.

Replace the belt unit with a new one.

See Related Information: Replace the Belt Unit.

Replace the drum unit for the colour indicated on the LCD.

Reset the drum unit counter.

See Related Information: Replace the Drum Unit.

Replace the toner cartridge for the colour indicated on the LCD.

See Related Information: Replace the Toner Cartridge.

Replace the waste toner box with a new one.

See Related Information: Replace the Waste Toner Box.

• Press and hold to turn the machine off, wait a few seconds, and then turn it on again. Leave the machine idle for 15 minutes with the power on.

Choose a paper size supported by the defined tray.

Press Stop/Exit (if required).

Load the correct size of paper in the tray and set the tray for that paper size.

Choose a paper size supported by 2-sided printing.

Paper size available for automatic 2-sided printing is A4.

Pull out the drum units. Remove all of the toner cartridges, and then put them back into the drum units.

Order a new toner cartridge before the LCD displays Replace Toner.

Close the back cover of the machine until it locks in the closed position.

Ask your administrator to check your Secure Function Lock Settings.

• Press and hold down to turn the machine off. Wait a few seconds, and then turn it on again. Perform the colour correction again using the LCD.

• Install a new belt unit.

• If the problem continues, contact Brother customer service or your local Brother dealer.

Remove the toner cartridge and drum unit assembly for the colour that is indicated on the LCD. Take out the toner cartridge, and put it back into the drum unit again. Re-install the toner cartridge and drum unit assembly back in the machine.

See Related Information: Replace the Toner Cartridge.

• Press and hold to turn the machine off, wait a few minutes, and then turn it on again.

• If the problem continues, contact Brother customer service or your local Brother dealer.

• Press and hold to turn the machine off, and then turn it on again.
• If the problem continues, contact Brother customer service or your local Brother dealer.

Press . For 2-sided scanning, use A4 size paper. Other paper must be within the following size:

Length: 147.3 to 355.6 mm

Width: 105 mm to 215.9 mm

Remove the toner cartridge and drum unit assembly for the colour that is indicated on the LCD. Take out the toner cartridge, and put it back into the drum unit again. Install the toner cartridge and drum unit assembly back in the machine.

If the problem continues, contact Brother customer service or your local Brother dealer.

Send the fax again or connect the machine to another telephone line. If the problem continues, contact the telephone company and ask them to check your telephone line.

Leave the machine turned on. Wait for 30 minutes with the top cover in the open position. Then turn off the machine and close the cover. Turn it on again.

Wait until the machine has finished cooling down. Make sure all vents on the machine are clear of obstructions.

When the machine has cooled down, it will resume printing.

Open and then firmly close the top cover of the machine.

Close the fuser cover located under the back cover of the machine.

Close the ADF cover.

Try to send or receive again.

If calls are stopped repeatedly and you are using a VoIP (Voice over IP) system, try changing the Compatibility to Basic (for VoIP).

Remove the jammed paper from the ADF unit.

Clear any debris or scraps of paper from the ADF unit paper path.

Press .

Clean the corona wires on the drum unit.

See Related Information: Clean the Corona Wires.

If the problem continues, replace the drum unit with a new one.

Replace the drum unit.

See Related Information: Replace the Drum Unit.

Open the top cover, remove the toner cartridge and drum unit assemblies, and gently remove the jammed paper. Reinstall the toner cartridge and drum unit assemblies into the machine. Close the top cover.

Gently remove the jammed paper from in and around the manual feed slot. Reload the paper into the manual feed slot, and then press Retry.

Gently remove the jammed paper from in and around the MP tray. Reload the paper and press Retry.

Open the fuser cover and gently remove the jammed paper. Close the fuser cover. If the error message remains, press Retry.

Ask your administrator to check your Secure Function Lock Settings.

Place paper in the manual feed slot.

Load the correct type of paper in the tray indicated on the LCD, and then select the correct media type in the Paper Type setting on the machine.

Reinstall the belt unit.

Reinstall the toner cartridge and drum unit assembly.

See Related Information: Replace the Drum Unit.

Disconnect the USB hub device from the USB host connector.

Do one of the following:

• Refill paper in the MP tray. Make sure the paper guides are set to the correct size.
• If paper is in the MP tray, remove it and load it again. Make sure the paper guides are set to the correct size.

Do one of the following:

• Refill paper in the paper tray indicated on the LCD. Make sure the paper guides are set to the correct size.
• If paper is in the tray, remove it and load it again. Make sure the paper guides are set to the correct size.
• Do not overfill the paper tray.

• Refill paper in the paper tray. Make sure the paper guides are set to the correct size.
• If paper is in the tray, remove it and load it again. Make sure the paper guides are set to the correct size.
• Do not overfill the paper tray.

Remove the toner cartridge and drum unit assembly. Remove the toner cartridge from the drum unit, and reinstall the toner cartridge back into the drum unit. Reinstall the toner cartridge and drum unit assembly back in the machine. If the problem continues, replace the toner cartridge.

Reinstall the paper tray indicated on the LCD.

Reinstall the waste toner box.

If you are using the Fax Preview function, delete unwanted received fax data.

If you are using the Memory Receive function and are not using the Fax Preview function, print received fax data.

See Related Information: Print a Fax Stored in the Machine's Memory.

• Press Send Now to send the pages scanned so far.
• Press Partial Print to copy the pages scanned so far.
• Press Quit or and wait until the other operations that are in progress finish, and then try again.

• Split the document into multiple parts.
• Reduce the Resolution.
• Reduce the File Size.
• Select the high compression PDF file type.
• Clear faxes from the memory.

If a print operation is in progress, press and reduce the print resolution.

Press and delete the previously stored secure print data.

• Press and hold down to turn the machine off. Wait a few seconds, and then turn it on again. Perform the colour correction again using the LCD.

• Install a new belt unit.

• If the problem continues, contact Brother customer service or your local Brother dealer.

Replace the toner cartridge for the colour indicated on the LCD.

See Related Information: Replace the Toner Cartridge.

Replace the waste toner box with a new one.

See Related Information: Replace the Waste Toner Box.

Press and hold to turn the machine off, wait a few seconds, and then turn it on again. Leave the machine idle for 15 minutes with the power on.

Press (if required).

Load the correct size of paper in the tray and set the tray for that paper size.

Choose a paper size supported by 2-sided printing.

Paper size available for automatic 2-sided printing is A4.

Choose a paper size supported by the defined tray.

Press and delete the previously stored secure print data.

Order a new belt unit before the LCD displays Replace Belt.

Order a new drum unit before the LCD displays Replace Drum.

Replace the belt unit with a new one.

See Related Information: Replace the Belt Unit.

Replace the drum unit for the colour indicated on the LCD.

Reset the drum unit counter.

See Related Information: Replace the Drum Unit.

Order a new toner cartridge before the LCD displays Replace Toner.

Order a new waste toner box before the LCD displays Replace WT Box.

Pull out the drum units. Remove all the toner cartridges, and then put them back into the drum units.

Reduce the number of Optional Trays.

Make sure nothing is touching the touchscreen.

Insert a piece of stiff paper between the lower part of the touchscreen and its frame and slide it back and forth to push out any debris.

• Unplug the device from the USB direct interface.

• Press and hold to turn the machine off, and then turn it on again.

Unplug the device from the USB host connector.