Hello, My problem comes from scanning & copy printing only, not from any printing from PC. A thin line appears in the print copy at the same position of every and any print while scanning and printing. However there is no unwanted mark whtsoever while printing direct from PC. Also, any scanned image when viewed in the monitor the same line additionally appears. The line is in the transverse direction of the scanner light movement. Problem is indicative of the scanner section troubleshooting. Please help me in getting rid of the line mark from scanning.
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Only when copying? What about printing? There are a couple possible causes. The easy one to check for is to make a copy by laying your original on the glass. Now make the same copy using the automatic feeder on top. If the feeder copy has the lines but the glass copy does not then the problem is coming from the ADF scanner glass which is the thin strip of glass that is just to the right of the large main glass. If so then just clean the strip of glass with a soft cloth and some glass cleaner. Note that sometimes the stuff that might be stuck to the glass is hard to get off. If BOTH the ADF copy and the main glass copy have the lines then most likely the lines are coming from the drum unit. If you have the copier hooked up for use as a PC printer then does the print from the computer have the lines as well? Then it most definately is coming from the drum unit and you would need to replace it. If the PC prints are clean then the drum is not the cause.
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Most likely a page was scanned 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, 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.
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..