Step-by-step help for Brother DCP-L2540DW Error Codes.
Understanding DCP-L2540DW error messages
The Brother DCP-L2540DW uses its LCD display to show error and maintenance messages when the machine needs attention.
The exact solution depends on the message displayed. Before resetting the printer or reinstalling software, read the message carefully and address the condition it identifies.
Toner Low
Toner Low means the toner cartridge is approaching the end of its usable life.
You may still be able to print for a period of time, but prepare a replacement toner cartridge.
If print quality also begins to deteriorate, check the toner cartridge before investigating other printer components.
Replace Toner
When the machine displays Replace Toner, the toner cartridge needs attention or replacement.
Install the appropriate toner cartridge according to Brother’s instructions.
If you have already installed a new cartridge but the message remains:
- Make sure the cartridge is installed correctly.
- Check that the toner cartridge and drum unit are assembled correctly.
- Remove and reinstall the assembly carefully.
- Confirm that the replacement cartridge is appropriate for the machine.
Do not repeatedly reset toner-related messages simply to continue using a depleted cartridge.
Drum End Soon
The toner cartridge and drum unit are separate components in the DCP-L2540DW.
Drum End Soon indicates that the drum unit is approaching the end of its expected life.
You can prepare a replacement drum unit while continuing to monitor print quality and printer messages.
Replace Drum
Replace Drum indicates that the drum unit has reached its replacement point.
After installing a new drum unit, follow Brother’s drum replacement and reset procedure.
Replacing the toner cartridge does not replace the drum unit because they are separate components.
Drum!
A Drum! message can indicate that the corona wire on the drum unit needs cleaning or that the drum/toner assembly is not installed correctly.
Remove the toner cartridge and drum unit assembly according to Brother’s instructions and check the assembly.
When cleaning the corona wire, return its cleaning tab to its normal position afterward.
Reinstall the assembly securely before trying to print again.
Jam Inside
Jam Inside means paper has become jammed inside the machine.
Turn your attention to the internal paper path and carefully remove the jammed paper according to Brother’s instructions.
Check for torn pieces of paper before closing the machine.
Do not pull forcefully on paper that does not move freely.
Jam Rear
A Jam Rear message indicates a paper jam toward the rear of the machine.
Follow Brother’s rear-jam procedure and remove the paper carefully.
Check that no fragments remain before closing the rear cover and trying to print again.
Jam Tray
Jam Tray indicates that paper is jammed in or around the paper tray area.
Remove the paper tray and inspect the accessible paper path.
Carefully remove the jammed sheet, reload the paper correctly and reinstall the tray before printing again.
Jam 2-sided
A Jam 2-sided message relates to paper becoming jammed while using automatic two-sided printing.
Follow Brother’s duplex-jam procedure rather than pulling the paper from whichever opening is easiest to reach.
After removing the jam, make sure the paper is loaded correctly and is suitable for automatic two-sided printing.
Manual Feed
If Manual Feed appears, the printer may be waiting for paper to be inserted into the manual feed slot.
Check the print settings and the requested paper source.
If you intended to use the normal paper tray, make sure the document was not accidentally configured to print from the manual feed slot.
Size Mismatch
Size Mismatch means the paper size detected or loaded does not correspond with the paper-size setting being used for the print job.
Check:
- The paper loaded in the tray
- The paper-size setting on the machine
- The paper size selected on the computer
- The application’s print settings
Make these settings consistent before trying again.
Out of Memory
An Out of Memory message means the machine does not have enough available memory to complete the current operation.
Cancel the operation if necessary.
For complex print jobs, simplifying the document or reducing print complexity may help.
For copying or scanning operations, reduce the amount of information being processed at one time where appropriate.
Self-Diagnostic
A Self-Diagnostic message can appear while the machine is checking its internal condition.
Allow the printer time to complete the process.
If the message does not clear or repeatedly returns, follow Brother’s official troubleshooting instructions rather than repeatedly switching the machine on and off.
Error returns after replacing toner or drum
If a toner or drum message remains after installing a replacement:
- Make sure the correct component was replaced.
- Check that the toner cartridge is seated correctly in the drum unit.
- Reinstall the assembly.
- Follow Brother’s specified reset procedure when required.
- Confirm that all covers are completely closed.
Remember that the toner cartridge and drum unit are separate consumables.
Don’t reset errors without identifying the cause
Resetting the machine may temporarily clear some conditions, but it does not remove jammed paper, correct an incorrectly installed cartridge or repair a worn component.
Identify the displayed message first and address its underlying cause.
This also makes it easier to determine whether the problem is related to paper, toner, the drum unit, configuration or the printer itself.
Still seeing an error?
If the same error returns after following the appropriate checks, use Brother’s official support resources below.
Brother provides model-specific instructions for individual DCP-L2540DW error and maintenance messages, including paper jams, toner and drum conditions.
If Brother’s troubleshooting indicates that service is required, avoid dismantling internal printer components that are not intended for user maintenance.
Official manufacturer support
Need manufacturer documentation or additional support? Use the official Brother resource below.
HelpMyTechs provides independent support information. We do not host device drivers. Software downloads link to official manufacturer resources.
Last verified: 30 September 2026