Question about Brother MFC-9440CN Laser Printer

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3 dots along the left margin of paper, after replacing the drum

The dots are about 3 inches apart and perfectly lined up about a half inch from the left edge of the paper.

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Open the MP tray and place a new sheet of A4 paper on it.

Press and Hold the Clear/Back button and also press and hold the Left Arrow. The display should change to 'Drum Cleaning'

Press the OK button and it should clean the drum and print a sheet with smudges where your dots used to be.

You may need to repeat the procedure a few times.

Posted on Nov 01, 2010

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Somewhere on the drum there is a spot as big as you see it on the paper. You will need to clean the drum unit.

For instructions on how to clean the drum unit please follow the link below.

http://welcome.solutions.brother.com/BSC/public/us/ca/en/faq/faq/000000/002200/000056/faq002256_002.html?reg=us&c=ca&lang=en&prod=mfc9440cn_all&Cat=7

Posted on Apr 24, 2010

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1 Answer

My HL2040 printer is printing black vertical lines along the right-hand side of the page, about 3" or so. A month ago I took it apart and cleaned the roller. Still doing it.


If the lines go all the way down the page, check the position of the corona wire cleaner tab (blue or green) at the top front of the drum unit. if not parked fully to one side it will create a solid black lines where it blocks the laser. Otherwise look for some other foreign object (or torn paper piece) that may be blocking the laser from the drum. If the lines are thin and shark, check for scratches on the drum (not repairable without replacing drum). If the lines are uneven thickness but in a pattern that repeats down the page every few inches, then the film on the drum is probably worn or wearing away and the drum needs to be replaced.

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I am a teacher. We have Dell computers with windows 7 on them. Recently our school district downloaded Microsoft Office 10. Since the new microsoft office, my xerox phaser 8500 is printing strange. ...


Hi fsaltzman,

You need to check the margin settings in the print preview option, make sure you decrease the margins that are set by default and try printing a test page , this should work fine.

On the File menu, you need to click Page Setup, and then click the Margins tab.
Here you can adjust the margins as per your convenience.

To View page margins :-
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  2. Under Print and Web Layout options, select the Text boundaries check box.

The page margins appear in your document as dotted lines.


You can use these dotted lines to correct your margins so that your student's assignments are not cut off and there is no large margin as you have mentioned in your question.


You can view page margins in either Print Layout or Web Layout view only, and they do not appear on the printed page.

Hope this helps

May 11, 2011 | Office Equipment & Supplies

1 Answer

When printing there is a line on the left side of the paper about an inch margin. I've tried to wipe the rollers.


you will then need to replace the drum unit or the fuser as both of theese cause lines when printing when they are bad.

Oct 23, 2009 | Brother Office Equipment & Supplies

1 Answer

Little dots on right side of margin (Brother HL-5040)


I would have guessed the trouble shooting steps you first performed. It could still be a bad imaging drum. Or a fuser. Not sure if this model has a replaceable fuser or not.

Jul 08, 2009 | Brother HL 5040 Laser Printer

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HP LaserJet 2430 prints vertical grey bands


It is a bad Toner Cartridge or Fuser. Most likey a bad toner cart.

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Lexmark T614 horizontal lines on right the left margins


This sounds like a cartridge problem if you have changed the cartridge and the problem persists I would say it is the positive charge roller inside the printer. If you open the cartridge door and remove the cartridge with the cartridge out starting closing the door and you will see this roller moving down from the top inside of the printer. do not touch this without a glove or lint free cloth. not hard job to change if you can get one in your area if not we have them available.
laserguy@nbnet,nb,ca

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1 Answer

Printing dots on Brother HL 4040CN


do this procedure
1.print test page then stop the printer on the middle print proses by turn the printer of or open the rear cover
2.remove the paper jam carefully
3.look to the paper if the problem found change the drum unit els the fusser unit cause the problem

Apr 01, 2008 | Brother HL 1440 Laser Printer

1 Answer

Black dot in left margin.


Hi,

If the black dots were not present with the old cartridge, then one can only suspect the new cartridge at fault. This rarely happens but it do happen. Chances are that there is a defect on the drum inside the new cartridge. You can visually check for this imperfection by removing the cartridge and sliding the protective cover to partially expose the drum (not in direct sunlight as they are light sensitive). There is a white gear at the side that you can manually rotate ( a bit stiff) to check for the possible fault. you can approximate the possible location by aligning a printed paper with the series of dots against the drum to give you an idea where to concentrate on.

Should this be the case, it is possible for you to return the new cartridge for a replacement.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Mar 19, 2008 | Samsung ML 2010 Laser Printer

2 Answers

Lines along edge of paper


1 of 3 things I can think of off top of my head.
Since they are straight, I would suspect the transfer unit.
If it were just one color it would be that imaging unit.
Unlikely the fuser.
It doesn't sound line an issue called bar coding ,where the machine prints random lines. That would be a software issue.
Take the transfer unit out and inspect it for the marks.
I am assuming the streaks are on all colors correct?
If it isn't on the transfer belt, and on all colors check the fuser and see if its latched.

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