Question about Brother MFC-9440CN Laser Printer

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Brother9440 black dots appearing in line close to middle

I have a new brother 9440cn printed appox 2000 pages and now black dots are showing up in a line close to the middle of the page top to bottom..not always in same spot but in that same line just spaced differently. I replaced all toners but they are still appearing.. please HELP!!

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  • Brother Master
  • 1,447 Answers

It is problem drum spot open ypur printer drum unite and chack it or buy new one

Posted on Jul 23, 2009

  • Sazeed Computer
    Sazeed Computer Sep 07, 2009

    please change black cartridge

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My mfc-9440cn prints a black line on the rigth side do you know what could that be? maybe needs new drum?


Hi there !

If you are self refilling the toner cartridge, the roller drum can be damage due to wear and tear. I need to replace new toner cartridge other i will getting wider and wider on both left and right of the paper.

Jan 13, 2011 | Brother MFC-9440CN Laser Printer

1 Answer

I have small black dots down the left hand margin approx 10cm apart- machine is only 12 months old


hi

First try printing a few pages to try and clean the drum unit. If the problem is not solved after printing a few pages, the drum unit may have glue from a label stuck on the drum surface.
go to this link -- below for further instructions

http://welcome.solutions.brother.com/BSC/public/us/ca/en/faq/faq/000000/000200/000016/faq000216_016.html?reg=us&c=ca&lang=en&prod=mfc9440cn_all&Cat=112


hope this helps

Nov 14, 2010 | Brother MFC-9440CN Laser Printer

1 Answer

I have one line on the page that the ink does not set on my Brother MFC-9440CN. All the other ink sets, but this one line doesn't and it "smudges" when you run your hand over it.


I've just bought a brother printer and find that when I print onto cd labels i've used before, the ink is not setting. I have never had this problem before with these labels, so now am concerned that the only new addition is the printer. Why should this happen? Is it the ink they use?

Jul 23, 2010 | Brother MFC-9440CN Laser Printer

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Black dots on printed page from Brother 9440 color laser printer


The problem lies with the black toner cartridge. This is a common problem in these machines due to poor design by Brother. Best solution is to replace the offending color toner cartridge.

Jan 18, 2010 | Brother MFC-9440CN Laser Printer

1 Answer

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check your printer scanner. and replace it

May 21, 2009 | Brother MFC-9440CN Laser Printer

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Black dots on print outs from Brother Laser Printer MFC-9840CDW


meaning your printer drum is growing weak and will soon need to replace

Apr 10, 2009 | Brother MFC-9440CN Laser Printer

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White dots on print line


At first glance it sounds like it may be a bad cartridge or toner. Try a new one. If that does not fix issue then it may be the fuser, or dirty scanner mirrors.

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1 Answer

Magenta Dots vertically on Left margin of page


That is referred to as a repeating defect...most likely caused by a defect on the magenta drum unit. Here is a link for information on how to repair this problem:

http://welcome.solutions.brother.com/BSC/public/us/us/en/faq/faq/000000/000200/000016/faq000216_016.html?reg=us&c=us&lang=en&prod=mfc9440cn_all&Cat=3

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3 Answers

Four dots middle of page


How do I clean white or black spots on printed documents? Description: First make 10 to 15 copies of a blank, white sheet of paper.
If you still see the spots on printed documents after making multiple copies, clean the drum unit as follows:

  1. Remove the drum unit and toner cartridge assembly, and then remove the toner cartridge from the drum unit.
  2. Position the print sample in front of the drum unit so you will know the exact position on the drum that is causing the poor print.
  3. all-ug-19.gif
  4. Turn the black gear on the drum as you check the surface of the OPC drum.
    The OPC drum is photosensitive so do not touch it with your fingers.
  5. all-ug-20.gif
  6. When you find the substance on the drum surface that matches the print sample, gently dab the surface of the OPC drum with a cotton swab that is lightly dampened with isopropyl alcohol.
  7. Note
      • Do not use a scrubbing or wiping motion because this might damage the drum.
        all-ug-21.gif
      • Do not try to clean the surface of the OPC drum with a sharp object, such as a ball-point pen, because this might cause permanent damage to the drum unit.
  8. If the print quality still has not improved you need to install a new drum.

Sep 11, 2008 | Brother MFC 7420 All-In-One Laser Printer

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