I have a problem regarding my SCX4216F unit. Whenever a page prints, whether from fax or copy, there appear two thin black lines that run longways down the center of each page. These two lines are about a centimeter apart. No one in our office can tell if this is a hardware problem a problem with transmission, etc.
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The page goes thro the feeder mechanism and passes over a thin strip of glass; maybe about 1/4 inch wide and runs across the fax under the cover where the paper is fed. You probably have dirt,corrector fluid or something like that on the glass this will cause the problem of a black line down the page to appear at the other end when you send a fax...and also to appear on your pages when you make a copy...open up the machine and clean the glass...cant help any more as you didnt state make or model.
Most likely a fax has been sent or a page copied with 'white out' (Liquid Paper), still wet on the page. As the page feeds over the scanner, (a narrow strip of glass that runs across the width of the page along the feed path) the wet liquid paper comes off on the glass as a thin line and dries. Thereafter, when copying, scanning or sending a fax, the scanner light does not go through the liquid paper streak and the result when printed is a thin vertical line that runs the full length of the page.
If this is your problem: follow the path that the paper travels when sending a fax or making a copy, until you find the scanner (narrow glass strip). Take a clean, soft cloth and a small amount of methylated spirit (or white spirit) and remove the now dried Liquid Paper from the glass. Clean the whole strip ensuring that the glass is left clean and dry.
Your brother can send faxes without printing the pages try your computer just you should download the driver.
You can download the driver from this link: " http://download.cnet.com/Brother-MFC-8220-USB/3000-2118_4-65318.html ".
About the lines which appear on the print, you will have to buy a Drum unit for your Brother 575, because the drum cleaning blade has quit working and there is no other way to fix this only by putting a new drum unit.
note: the drum unit is different from the toner cartridge, but if you search good you can find them together for lower price.
Does the same thing occur with a different document.. Because it is not repetative, it leads me to believe the line is being drawn at the direction of the software. Try printing a test page, and see if the line appears. If not the issue is from within the word processsing software. It almost sounds like a legal template for a pleading..
If you see black lines on the drum, it is very likely that the drum unit is bad. Replace the drum unit and rest the drum counter. If you wait too long, you will cause toner build up in the fuser and will cost yourself several hundred dollars to get it replaced. More in labor than parts.
Use a soft cotton or very soft paper towel and wipe the excess toner from the drun. If there are lines worn in the surface of the drum, then replace it ASAP.