Question about Brother MFC-7820N Printer

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I have black lines down the printed page only when copying a document using the automatic document feeder.

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  • sbardos Apr 23, 2010

    1. I clearly stated that I get black lines when I copy a document using the automatic feeder. This means that I do not get the black lines when I copy a page from the scanner glass or I print an MS Word document from my computer. I received a fax recently without these black lines. Therefore, the toner, drum and its rollers are OK.

    2. I changed the toner cartridge because basically it was low and this did not solve the problem.

    3. There is no "developer" in the Brother's vocabulary and the Brother User's Manual provided more help than you, so it seams you are not familiar with this equipment.

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You should open and clean the developer and the drum ..and rollers ..cause any lines are caused by those being dirty and retaining the toner...there is no other cause for lines on paper..

Posted on Apr 23, 2010

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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
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1 Answer

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I have no idea what "paperport 11" is.
That being said, normally a line down the page when copying or scanning is caused by dirt on the Automatic Document Feeder glass, Not the flatbed glass. It is a thin strip of glass to the left of the flatbed scanner glass. Clean it.

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This is caused by dirt/debrise on the ADF (automatic document feeder) scanner glass. You need to open up the feeder where your originals are fed in and look for a strip of glass that runs from front to back. It is about an inch or so wide. You need to clean this glass to get rid of the lines. Some models have this glass just to the left of the large main glass, but in your case I beleive it is in the feeder itself.
Good Luck.

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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,
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