Question about Brother MFC-7220 All-In-One Laser Printer

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Black line down the center of the page when printing

When I print a page it leaves a thick black streak down the center of the page

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  • 990 Answers

1,check the scannor unit,which is doccument feed in open the cover look the piece glass is clean.
2, replace drum cartridge.

Posted on Dec 16, 2008

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Why do I get a thick black line down side of page when copying, but not when I print


Not sure, but one possibility is that your paper you are copying is not all the way to the edge of the copier. If there is a crack along the edge where light from the room can get in it will show up black in those areas. You will see the same effect if you leave the top of the copier off and try to copy something. There could also be something wrong with the scanner arm preventing it from moving all the way to the edge of the window.

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When printing on x3350 with a new cartridge... get lines that are double and some with thick black ink on some letters.


Try to reseat the cartridges into the printer. If problem continues, then maybe the cartridge nozzles need cleaning. Follow the simple steps below on how to clean the cartridge nozzles on the Lexmark X3350:
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Brand new HP Colour Laser Jet 2605 printer prints a thick black line down the center


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Take the cartridge out and take a look at the print head. Clean the print head.
Put the cartridge back in
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Hello sir;The streak line from printing also should be from copy, because the line come from imaging unit, check the meter count if close to or over 50,000 then replace drum and drum blade, it will take care the problem.
The brother printer you need to replace imaging unit( drum unit).

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If the line runs the way that the paper does I.E. vertical on a portrait then it is dirty rollers normally.
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Streak down the center of the page


The streak is most likely the toner or the fuser

This is the test to determine toner or fuser issue.
Print a test page
When you hear the paper feed into the machine open the top or front to stop the machine
Remove the toner cart.
You should be able to see the page with printing on it. (This is before the page hits the fuser)
If you can see the defect on the page the problem is most likely the toner cartridge but NOT the fuser.
If the page is clean the problem is most likely the fuser.
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Black lines running down the prints


Hi,

it seems that your print head is the problem you can try to clean it first..
but if you already try to do this no other choice is to have a service center o change it for you.

thanks,

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Brother printer that prints a black line down center


probably a bad drum cleaning blade, It's part of the drum unit

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