Question about Brother MFC 7420 All-In-One Laser Printer

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My brother MFD-7440N Says Drum Error. I have replacing the drum twice with drums and still no luck. I have also done the coruna wire and made sure the blue tap is lined up with the arrows.

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There might be an issue with the metal contacts on the bottom left side of the drum. If the contacts are placed right then it will continue with the drum error. See the link for the location of the contacts. Try cleaning them on the drum and on the printer and see if that works.

Posted on Mar 02, 2011


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Related Questions:

1 Answer

Printer is back and white, print is faded, toner is fine. What could the problem be?

Most likely it is an issue with the Drum Unit.

Start by cleaning the Corona Wire. There will be a slider on the top of the Drum Unit. Slide it all the way to the other side and back to where the arrows meet and try your print again.
If this does not fix the problem replace the drum unit as the drum itself may be worn. The drums are rated to do 12,000 pages and it has probably done this. 12,000 pages equates to about 5-6 cartridges.

Oct 14, 2014 | Brother MFC-7440N Laser Printer

1 Answer


the drum will just need to be replaced im not sure if the toner and drum both come as one cartridge. But if not wherever you get your toner from, just ask for a drum cartridge. they are very easy to change.

Jun 28, 2011 | Brother MFC-7440N Laser Printer

1 Answer

Drum error message appears

open the front door remove drum unit you will 'Blue' liver on the top of the drum just move it in opp. direction and again move to same position, before closing the door press the options button on the key pad you will see replace the drum option press 1 and close the door.

Apr 06, 2011 | Brother MFC-7440N Laser Printer

1 Answer

How to remove a brother mfc-7440n drum???

When you replace the toner cartridge on the unit, you pull out the drum with the cartridge, and then snap the new toner cartridge back in. The assembly that the toner snaps into is the drum, if you flip it over it has a large black roller which wears out over time.

Jun 02, 2010 | Brother MFC-7440N Laser Printer

2 Answers

How do I reset my drum life once I have inserted a new drum in my brother MFC-7440N printer?

Open front cover; hit CLEAR button; hit PLUS (up) button. Close cover. Done.

May 19, 2010 | Brother MFC-7440N Laser Printer

1 Answer

I have this problem too ("drum error see troubleshooting and routine maintenance in user's guide. I have tried everything recommended, cleaned the corona wire, cleaned the drum . . . I need help!

if you have consciously attempted the procedure suggested on the maintenance guide and you still have that error you may have to contemplate the possibility of replacing the drum.

Mar 30, 2010 | Brother MFC-7440N Laser Printer

1 Answer

How to change drum brother 7440n. Changed the drum but still shows drum life as zero

Open the front cover.
Press Clear/Back
Press 1 for Reset Drum

Loy Glenn -

Oct 11, 2009 | Brother MFC-7440N Laser Printer

1 Answer

Looking for corona wife for brother 8860dn MFD.

Try to get some corona wire stock which was quite common back in the day and install it in your drum.

Aug 14, 2009 | Brother MFC-8860DN Printer

2 Answers

"Dust on Drum" problem

try using canned air to clean the coruna chagre wire assy

Apr 16, 2008 | Brother IntelliFax-2820 Laser Fax

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