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Dark smudges on paper from my Brother MFC4800

My printer has started printing dark smudges on my paper. I have already installed a new toner and this has not solved the problem.

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Need to replace your drum unit (DR250)

Posted on Feb 25, 2009

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Smudge marks on left side of paper?


If you use new original toner, this should not happen, nevertheless, clean the drum first.

Sep 04, 2014 | Brother Laser Printers HL5450DN HL-5450DN...

1 Answer

Toner on paper edges


The cleaning blade inside of the drum unit is worn out. Replace the Drum Unit

May 19, 2010 | Brother IntelliFAX 4100 Laser Fax

1 Answer

After paper jam, prints total smudge on Intellifax 2800...please


This is the test to determine toner/drum or fuser issue.
Print a test page
When you hear the paper feed into the machine open the top to stop the machine
Remove the toner/drum cart.
You should be able to see the page with printing on it. (This is before the page hits the fuser)
If you can see the smudge or marks on the page the problem is most likely the cartridge but NOT the fuser.
If the page is clean the problem is most likely the fuser.

Mar 13, 2009 | Brother IntelliFAX 2800 Laser Fax

1 Answer

Dark Horizontal Lines on Faxes


on the drum unit that you put your toner inn, There is a blue or green slide lever move the slide back and fourth 10-15 times. If you have some van air blow that area out ( F.Y.I. if you do this some toner will fly out ) if this does not take care of it the drum unit my be bad,

do a 1/2 print test. copier something with a lot of print. open front cover when the paper is 1/2 way through the machine remove drum. Look art the paper and the green drum if the marks are on the paper & drum then the drum is bad. If not the fuser asm is bad, the part that gits hot when melting the toner on the paper,

Jan 29, 2009 | Brother IntelliFax-2820 Laser Fax

1 Answer

Fax prints to dark


have you replaced the drum??? are you using brother oem toner???? generic toner will give you all kinds of problems

Oct 29, 2008 | Brother IntelliFAX 2800 Laser Fax

1 Answer

Toner prints to dark


hi!!!!!

try to re-install the driver of your printer!!!
or try to figureout the settings of your printer

Oct 29, 2008 | Brother IntelliFAX 2800 Laser Fax

1 Answer

I get a white line on the printed pages on my Brother MFC4800. The line is about 5mm wide and runs down the left hand side of the paper, cutting through the type. Can you help please


Try cleaning the optics and the charge corona. If you do not have the operators manual which outlines the proceedure, go to www.welcome.solutions.brother.com. The proceedure is in the CLEANING documentation. Make sure the wire cleaner is pushed all the way back to its home position. Otherwise, the white line may return if the cleaner is left in the expoure path. IF THE WHITE LINE APPEARS ON PRINTED PAGES GENERATED BY YOUR COMPUTER, THE WIRE CLEANER IS THE MOST LIKELY CAUSE.. IF THE WHITE LINE APPEARS ON PRINTS THAT WERE SCANNED USING THE BROTHER SCANNER, THE OPTICS MAY BE SMUDGED. LOOK FOR CORRECTION FLUID ON THE GLASS **** (THE NARROW SCAN GLASS). THIS IS THE USUAL CAUSE.

Jul 23, 2008 | Brother Fax Machines

1 Answer

Ricoh aficio 1515f printing dark line down left side


If the print can be rubbed off then this suggests the fuser unit is not working correctly. It could be that the thermistor is covered with toner and making the machine think the fuser is hot enough when it's not.

The black line could also be caused by the fuser if one of the pick off fingers is coated with toner or has worn into the Teflon of the roller.

Does the machine show the lines when you print a page from memory - such as a counter or config page? If not, this would suggest the optical path is dirty. Try cleaning the glass and look at the mirrors inside the scanner to see if they are dirty/dusty.

Feb 18, 2008 | Ricoh Aficio 1515F Plain Paper Laser Fax

1 Answer

Dark toner streaks


can only be toner, drum or fuser, pull out drum and look at surface are you streaks present? usually drum.

Stop a print half way threw machine and then remove drum and look at print, pre hot bit (fuser) are you marks there? If so it is drum, if not fuser.

Nov 21, 2007 | Brother IntelliFAX 4100 Laser Fax

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