Question about Brother MFC-8440 All-In-One Laser Printer

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On our Nrother MFC-8440, the edges are slightly grayed. the drum says it's only at 50%. What else could it be?

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Toner low or defected drum

Posted on Nov 12, 2010

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I have a mfc-8440, 5 years old, low usage, 50% drum life, new toner cartridge. The problem is that the contrast of the printed copy does not change regardless of the setting using the path...


This is very easy to solve. Remove the drum and toner cartridge. Look into the machine where they sat. Now look up and you will see (a little aukward but its there) a glass plate the width of an A4 sheet of paper. Run your finger accross it. Look at your finger and will probably be dirty. This is the window the laser beam passes thru to hit the drum. When its dirty it does not allow enough ;light to the drum hence a weak beam and light printing.
simples?

May 18, 2011 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

How do i reset the drum on the brother mfc 8440


Open Toner front cover.

Press Clear.

Press 1 when the display shows REPLACE DRUM? 1.YES 2.NO
ACCEPTED.

Jan 22, 2010 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

How do I clean the drum on the Brother MFC-8440


It should be constantly cleaned by it's cleaning blade with every revolution. If that's not making continuous contact inside the drum unit, then it's time to replace the drum. The symptom to look for is not just a gray background, but images that repeat about 3 inches down the page as the drum rolls around to that point again.
If the background is gray without noticeable repeating image, it may be a defective toner cartridge. We've wasted a fair amount of money replacing Brother drums when it turned out to be the much cheaper toner cartridge. If it's a new cartridge, take it back to the store along with before and after print samples.

Jan 21, 2010 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

Installed new drum on Brother MFC-8440. Still says chnage drum soon


With new drum you got to have a instruction how to reset counter of the drum. In every packet of new drum come with instruction how to change and reset.

Dec 15, 2009 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

I have a Brother MFC 8440..the paper has vertical black lines


Try changing the toner, if it's generic that's your problem, and if it's either an old brother drum or a generic you may need a new one. There is also a glass to clean, it's right above where the drum sits inside, 1/2 inch wide across the top. Wipe with a dry cloth.

Sep 14, 2009 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

Pls Clean Drum


The drum is the larger plastic unit that slides out an the toner cartridge fits into it. The corona wire is the very fine wire at the front top of the drum. Just slide the little cleaning tab back and forth.

Aug 03, 2008 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

Changed drum


try this
replace the old drum with the new replacement.
with the front door open press the Clear/Back button
press the number 1 button and when ?accepted? appears on the LCD4.gif close the front cover.

hope this helps
thanks for rating

Jan 09, 2008 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

Dark mark at the edge of the page from top to bottom when printing


sometimes dirty carona, clean with blue tab on drum, if not then usally it is the drum worn out(expected life 20 000 prints) or less often it is the fuser roller stuffed

Jan 01, 2008 | Brother MFC-8440 All-In-One Laser Printer

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