Question about Brother MFC-9420CN All-In-One Laser Printer

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When I scan a sheet using the automatic feeder on a Brother MFC-9420CN it places two vertical lines on the end copy

When I scan on the flat surface there are no lines.

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  • Brother Master
  • 7,993 Answers

Try cleaning the glass. Some dirt may be on the glass window (not the flat surface.)

Posted on Jan 21, 2013

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Posted on Jan 02, 2017

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

  • 1684 Answers

SOURCE: i get vertical lines on scans and copies when

Hello,

Check out this page on our web site at:
http://www.ccl-la.com/dirty_scanner.htm This page shows you what to do to get rid of the lines on scans and copies.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

Posted on Jan 12, 2010

wheatlandsvc
  • 1110 Answers

SOURCE: Brother MFC-7820N Printer--vertical lines

You need to clean the scanner glass. Also known as the strip glass. It is a 1 inch wide strip of glass that runs from the front to the back. Your documents pass over this glass when they are scanned. Some of the wax crayon probably smeared off onto the glass and now when you scan the scanner sees these marks as stationary and thus records them as solid lines. Just look into the scanner section where your documents are fed in or depending on model, some are just to the left of the large original glass.
Good Luck and thank you for using Fixya.

Posted on Feb 25, 2010

  • 1 Answer

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

I had multiple vertical lines. Wiping with damp cloth did nothing. Had to use Windex (glass cleaner) and really rub hard. That did the trick.

Posted on Mar 14, 2010

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1 Answer

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


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.

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Brother MFC-7820N Printer--vertical lines


You need to clean the scanner glass. Also known as the strip glass. It is a 1 inch wide strip of glass that runs from the front to the back. Your documents pass over this glass when they are scanned. Some of the wax crayon probably smeared off onto the glass and now when you scan the scanner sees these marks as stationary and thus records them as solid lines. Just look into the scanner section where your documents are fed in or depending on model, some are just to the left of the large original glass.
Good Luck and thank you for using Fixya.

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I get vertical lines on scans and copies when


Hello,

Check out this page on our web site at:
http://www.ccl-la.com/dirty_scanner.htm This page shows you what to do to get rid of the lines on scans and copies.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

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1 Answer

Lines on Outgoing Faxes and Copies from Feeder Is there a way to clean the doc feeder scanner? I have a big line going down the center of the page when I copy or fax from there. Thanks!


Hello,

If you lift the top of the unit so that you can see the scanner glass and clean the surface on the left side and the very end of the scanner you should be ok. The sheet feeder runs the pages through the feeder and down to the glass at the end then back to the feeder and out to the stack of pages. If you try to scan anything with wet ink, highlighter, marker, etc some may come off on the glass and cause the lines to appear. Just use windows on a paper towel, not sprayed on the unit.

I hope this helps, if so please rate our solution.

Buddy
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www.ccl-la.com
tech@ccl-la.com

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5 Answers

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.

Aug 18, 2009 | Brother MFC 7840W Printer

1 Answer

Very crisp vertical grey line appears (glass clean)


I have the exact same problem. It was there since I first bought the MFC-7840W.
Vertical line appears in scans using the automatic document feeder (ADF).
Vertical line does not appear when scanning single page (placing it directly on the glass -- i.e. not using the ADF).

Cleaning the glass strip for the ADF (or the white pressure bar overhead) does not solve the problem.
The problem does not occur with copies using the ADF (using the COPY button which is basically a scan and print). This would suggest that dust and dirt is not to blame because that would also appear on the copies.
But since I believe a copy is basically a scan plus print, they should be using the same electronics -- a hardware problem on the scan would likely appear on a copy also -- there is some difference between how they accomplish this.
It's definitely not a software issue since it occurs on all versions of Windows and Mac OS X (and multiple computers). It also does not matter whether I "push" the scan to the computer by using the scan button on the MFC... or "pull" the scan from the MFC using the Brother Control Center software.

Aug 12, 2009 | Office Equipment & Supplies

3 Answers

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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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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