My copies have a thin line from top to bottom that is very light to no print at all. The thin line is at the same place every time but the rest of the copy looks great. I have replaced the drum and toner also cleaned the wire and glass.The coper is a Xerox XC830.

What is this thin red line that is on my screen whenever my ...

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Sep 23, 2010 - There is a very thin red line going from the top of my computer screento the bottom, ... If it's a single-pixel-wide red line from top to bottom it's a failure in ....have thin red lines running down the screen??some are thicker than ...

Thin Vertical Red Line [Solved] - Acer - Displays - Tom's Hardware

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Jul 12, 2013 - 5 posts - ‎2 authors
hi all i am having a Thin Vertical Red Line on my Acer LED moniter ... the screen is having a part fail(cable or the screen/control board it self.).

Why is there a straight vertical line going from top to bottom on ...

forums.androidcentral.com > ... > Samsung Galaxy S6 edge

Apr 15, 2015 - 7 posts - ‎4 authors
Just bought the Samsung Galaxy s6 edge yesterday. After I charged the cellphone for the first time and turned it back on there was this straight.

When copying from the feeder the page is fed across a fixed point at the head of the flatbed. Any dirt etc on the glass at this point can present as a dark line running vertically down the printed page. When copying from the flatbed, the scan head is moved down the page so any dirt on the glass will only appear as specs. Try cleaning the glass, especially at the head of the flatbed where the feeder is loading the page to be copied.

You have white out or some other white substance blocking your scanner optics. I am assuming this is a thin blank line. What you need to do is make a copy of a document with your machine. You should see the very same blank line on your copy that your customer is seeing on their received fax. Now take this copy and place it in the document feeder the same way you placed the document when you made your copy. Now imagine this document going thru the feeder. The strip that is blank will "match up" with the white out or whatever is causing the blank line. You just need to open up the feeder section where the documents go in to be scanned and look for the thin strip of glass that runs from one side to the other. Using the copy you made with the blank line, use it to see exactly where the glass should have something stuck to it and clean it off with a soft clotch with a little glass cleaner on it. Go ahead and clean the while glass while you are in there. Once clean you can close it back up and run another copy to insure that all the lines are gone.
Good Luck and Thank You for using Fixya.

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 the cause you will also find that faxes you send to other people will also have this line (although faxes you receive are not affected by this problem with your machine).

To fix the 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.

Check the wondow where the paper passes to be scanned. You will probably find some debris or white out stuck on the glass. That is usually the cause of vertical lines on sent faxes.

hello
does the grey line appear if you scan true the "upper" scanner.(set paper on top of printer and sscan it that way)? you should also clean the smal slim glass that is at the side of the big scanner glass.
also try to remove all cartridges and tilt them side to side several times. then put them back and test your printer.

there is probably a dirt spot on the scanner glass where the document feeds in. try cleaning the thin glass under the document feed cover.

Although you didn't specify the scanner model, this solution should work.

If the scanner has a top feeder, open it.

You will see a thin strip of glass, either to the left, or right of the large scanner glass.

There is most likely a small spec of ink, white out, etc on it.

Clean the strip glass with rubbing alcohol and the line should go away.

Toner issue getting to drum - use gen toner cart.

or Drum blade stuffed (lines are down page fro top to bottom- replace drum assy

Drum has been exposed to light faint or blank across copies repeated 4 times down page - replace drum assy

or upper fuser roller stuffed, down page, smudgy print -  replace fuser

LSU(laser) or boards rarely cause issues

Post back with more details please, what OS, if attached to a pc, own refill or store bought, how old is cartridge, have you checked all printer settings? Have you cleaned you printheads? or ran allignment check?