The device is removed from the USB direct interface while the data is processing.

Press Stop/Exit. Reinsert the device and try to print with direct print or PictBridge.

Calibration failed.

Press Mono Start or Color Start and try it again.

Do one of the following:

The toner cartridge is not installed properly.

Pull out the drum unit, take out the toner cartridge that is indicated on the LCD, and put it back into the drum unit again.

It is time to replace the belt unit.

Replace the belt unit. (See Replacing the belt unit.)

The drum unit is near the end of its life.

Use the drum unit until you have a print quality problem; then replace the drum unit with a new one.

The drum unit counter was not reset when a new drum was installed.

Press Menu, 8, 4, and then or to choose Drum.

Press OK and press 1 to reset the drum unit counter.

It is time to replace the fuser unit.

Call your Brother dealer to purchase the fuser unit.

It is time to replace the laser unit.

Call your Brother dealer to purchase the laser unit.

It is time to replace the paper feeding kit for the MP tray.

Call your Brother dealer to purchase the PF Kit MP.

It is time to replace the paper feeding kit for Tray 1.

Call your Brother dealer to purchase the PF Kit 1.

It is time to replace the paper feeding kit for Tray 2.

Call your Brother dealer to purchase the PF Kit 2.

The waste toner box is almost full.

Be ready to replace the waste toner box. (See Replacing the waste toner box.)

The paper in the tray is not the correct size.

Load the correct size of paper in the tray and set the “Paper Size” (Menu, 1, 3) and “Tray Use” (Menu, 1, 6). (See Paper size, Tray use in copy mode, Tray use in fax mode and Tray use in print mode.)

Poor telephone line quality caused a communication error.

Try sending the fax again or try connecting the machine to another telephone line. If the problem continues, call the telephone company and ask them to check your telephone line.

You tried to poll a fax machine that is not in Polled Waiting mode.

Check the other fax machine’s polling setup.

The temperature of the drum unit or toner cartridge is too hot. The machine will pause its current print job and go into cooling down mode. During the cooling down mode, you will hear the cooling fan running while the LCD shows Cooling Down, and Wait for a while.

Make sure that you can hear the fan in the machine spinning and that the exhaust outlet isn't blocked by something.

If the fan is spinning, remove any obstacles that surround the exhaust outlet, and then leave the machine turned on but do not use it for several minutes.

If the fan is not spinning follow the suggestions below.

Turn off the machine's power switch and then turn it on again. If the error message continues leave the machine for several minutes and then try it again. (The machine can be turned off for up to 60 hours without losing faxes stored in the memory.)

The front cover is not closed completely.

Close the front cover of the machine.

The back cover is not closed completely.

Close the back cover of the machine.

The other person or other person’s fax machine stopped the call.

Try to send or receive again.

The document was not inserted or fed properly, or the document scanned from the ADF was too long.

See Document jams or Using the ADF (automatic document feeder).

The corona wires on the drum unit needs to be cleaned.

Clean the four corona wires on the drum unit. (See Cleaning the corona wires.)

The machine has a mechanical problem.

Open the front cover and close it again.

The temperature of fuser unit does not rise at a specified temperature within specified time.

Turn the power switch off, wait a few seconds, and then turn it on again. Leave the machine for 15 minutes with the power on. The machine can be turned off for up to 60 hours without losing faxes stored in the memory. (See Checking if the machine has faxes in its memory.)

The fuser unit is too hot.

(XX=Error Code)

The machine has a mechanical problem.

Turn off the machine’s power switch and then turn it on again. If the error message continues leave the machine for several minutes and then try to print, copy or scan again. The machine can be turned off for up to 60 hours without losing faxes stored in the memory. (See Checking if the machine has faxes in its memory.)

The paper is jammed in the duplex tray.

(See Paper jams.)

The paper is jammed in the back of the machine.

(See Paper jams.)

The paper is jammed inside the machine.

(See Paper jams.)

The paper is jammed in the MP tray of the machine.

(See Paper jams.)

The paper is jammed in the paper tray of the machine.

(See Paper jams.)

The temperature of the machine is too cold.

Increase room temperature to allow the machine to operate.

The belt unit is not installed.

Install the belt unit. (See Replacing the belt unit.)

The drum unit is not installed.

Install the drum unit. (See Replacing the drum unit.)

The machine is out of paper or paper is not properly loaded in the paper tray.

Do one of the following:

The number you dialled does not answer or is busy.

Verify the number and try again.

The paper tray is not completely closed.

Close the paper tray properly.

The waste toner box is not installed.

Install the waste toner box. (See Replacing the waste toner box.)

You tried to access a One-Touch or Speed Dial number that is not programmed.

Set up the One-Touch or Speed Dial number.
(See Storing one-touch dial numbers and Storing speed-dial numbers.)

The machine’s memory is full.

Do one of the following:

Do one of the following:

(XX=Error Code)

The machine has a mechanical problem.

Turn off the machine’s power switch and then turn it on again. If the error message continues leave the machine for several minutes and then try to print, copy or scan again. The machine can be turned off for up to 60 hours without losing faxes stored in the memory. (See Checking if the machine has faxes in its memory.)

The protect switch of the USB flash memory drive is On.

Turn off the protect switch of the USB flash memory drive.

Registration failed.

Press Mono Start or Color Start and try again.

Do one of the following:

There is already a file on the USB flash memory drive with the same name as the file you are trying to save.

Change the file name of the file on the USB flash memory drive or the file you are trying to save.

(XX=Error Code)

The machine has a mechanical problem.

Turn off the machine's power switch and then turn it on again. If the error message continues leave the machine for several minutes before you try it again. The machine can be turned off for up to 60 hours without losing faxes stored in the memory. (See Checking if the machine has faxes in its memory.)

Document is too long for duplex scanning.

Press Stop/Exit. Use a suitable size of paper for duplex scanning. (See Scan.)

The scanner lock is locked.

Open the document cover, and then release the scanner lock lever.

Press Stop/Exit.

The drum unit and toner cartridges assembly is not installed properly, or one or more of the toner cartridges are used up and printing is not possible.

Do one of the following:

If the LCD shows Toner Low, you can still print; however, the machine is telling you that the toner cartridge is near the end of its life and the toner will soon run out.

Order a new toner cartridge now for the toner cartridge color that is low.

There are too many files stored on the USB flash memory drive.

Reduce the number of files stored on the USB flash memory drive.

An incompatible or broken device has been connected to the USB direct interface.

Remove the USB flash memory drive from the USB direct interface. Turn off the machine’s power switch, wait a few seconds and turn it on again.

It is time to replace the waste toner box.

Replace the waste toner box. (See Replacing the waste toner box.)

The paper in the tray is not the correct size or the tray is empty.

Load the correct size of paper in the tray.