Question about Brother MFC-9440CN Multifunction Printer

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There is a vertical black line appearing when I scan or copy

ONLY when feeding from the top. Not from the glass flat surface and not when I print from the computer or receive a fax. Just when the paper goes through the top feeder. Can anyone help? My email address is mariaprouflis@gmail.com

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  • 22 Answers

To the left of the A4 scanner glass, there is a narrow glass strip. This is when the top document feeder scans from. Check for any contamination (even a small speck) on this glass at about the position of the vertical line.

Posted on Apr 14, 2015

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Posted on Jan 02, 2017

Soulvisitor
  • 1113 Answers

SOURCE: Thick Black Line on my copies and faxes

Can't image it being anything but scan glass, if prints are fine, are you sure you cleaning scan glass(inside of where originals are fed)?

If so then scanner lamp faulty, but I've never come across it myself on this model.

Posted on Oct 27, 2007

  • 215 Answers

SOURCE: Lines of copies utilizing automatic feeder

look to the side of your big glass and you'll see a piece of glass about 1.5" wide. thats the galss that is used for scanning from the feeder. theres got to be something on that glass. possibly white-out or even a small speck of toner can cause that. look closely.

hth,
razors

Posted on Mar 16, 2009

antiochpc
  • 1314 Answers

SOURCE: vertical black line in scan document not in copies through document feeder

Lift the lid and to the left of the main glass is a smaller glass; that is what scans during the feeding process. Make sure that it is completely clean; even a speck of dust can cause a line to appear. I took a lens wipe and cleaned mine and my line was gone.

Posted on Jun 01, 2009

  • 1 Answer

SOURCE: vertical line appears in scans using the ADF, but not with copies

happened to me after i fed a page with not-too-hard whiteout on it. the feeder makes the page run through a different piece of glass and i just had to clean it.

Posted on Sep 03, 2009

  • 68 Answers

SOURCE: Vertical lines in copies and scanning

You need to clean small exposure glass located on the left of the main exposure glass.If this doesn't help,it can be a dust under the glass or on the mirrors that causing lines.

Posted on Oct 06, 2009

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I have a Epson cx11 and get a black vertical line down the middle of scans and copies


Check your flat bed and Document feeder scanning glass need to be clean, if any dot or dust in scanning glass of document feeder it will appear a line, check this points first
1- Check printouts from computer or FAX if it is clean problem in scanning section
2- Check using Copying a blank paper using only Flatbed if it prints without any line its problem from document feeder Scanning glass
So solution is clean the Document feeder scanning glass using wet cloth, note careful about wet cloth switch off the machine and clean it

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This was my exact problem. When scanning from the ADF, I had a vertical black line down every page. I cleaned the larger glass surface several times with no effect. Then, I discovered that ADF scans do NOT use the large glass area, but use the smaller, thinner glass area on the left side. It has a piece of thin plastic over the top of the glass. The scanner is fixed and the paper rolls through this area. So, if a speck of dirt is under the thin plastic piece or on top of the glass or on top of the thin plastic, it results in a black line down the whole page. Aha, so now I cleaned the thin plastic (both sides) and the top of the glass under the thin plastic - actually saw the black dot that was causing the problem and voila, problem solved.

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Black vertical lines on copies and scans from auto


This means the read area is dirty. Clean the glass with glass or lens cleaner at the area where you place the head of the paper if you wanted to lift the cover and scan a page without the autofeeder. There may be white out or toner stuck to the glass. This can be removed with a glass blade.
This answer assumes that prints from the computer are fine...

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Vertical lines in copies and scanning


You need to clean small exposure glass located on the left of the main exposure glass.If this doesn't help,it can be a dust under the glass or on the mirrors that causing lines.

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Check the wondow where the paper passes to be scanned. You will probably find some debris or white out stuck on the glass. That is usually the cause of vertical lines on sent faxes.

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Vertical line appears in scans using the ADF, but not with copies


happened to me after i fed a page with not-too-hard whiteout on it. the feeder makes the page run through a different piece of glass and i just had to clean it.

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Vertical black line in scan document not in copies through document feeder


Lift the lid and to the left of the main glass is a smaller glass; that is what scans during the feeding process. Make sure that it is completely clean; even a speck of dust can cause a line to appear. I took a lens wipe and cleaned mine and my line was gone.

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Vertical black line on side of copies only when using autofeed


Clean the small piece of glass on the flat bed. Should be on the left side of the flat bed when you lift the doc feeder.

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Copying with page feed results in a vertical line on every page


There must be a strip of glass about one inch wide, next to
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Clean that strip thourougly. When you use the feeder the pages
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Print Problem - vertical lines


If the problem only occurs when using the document feeder, the problem is not usually caused by the drum. When using the document feeder, try to notice where the scanner (the light assembly under your scan glass)stops just before the paper is being fed. Some multifunction machines have a small piece of glass that is separate from the large scan glass and the scanner assembly stays parked underneith it as the original is being fed over it. Most likely there is something on the glass where the scanner parks as originals are being fed thru the feeder. When putting your original on the large scan glass to copy, the mark on the glass will only show as a spot, but will show as a vertical line thru the whole copy when using the feeder.

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