Believe it or not, there probably is something in your scanner. Often times it is a very small piece of dust/fiber. If you are using the document feeder, the check the small piece of glass as the scanner bulb remains stationary and the paper is fed by. If you are laying the paper on the glass and scanning, then you will need to look at the scanner bulb itself. Run a scan with no paper and see if you see anything. If not, you can try to take it apart and clean the bulb (but do not touch the bulb with your bare fingers), with a light wipe of a tissue. If after cleaning, it either moves or goes away, then it is dust related. If it remains in the same position on the page, then there is a scanner bulb problem.
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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 2- Check using Copying a blank paper using only Flatbed if it prints without any line its problem from document feeder Scanning glass So solution is clean the Document feeder scanning glass using wet cloth, note careful about wet cloth switch off the machine and clean it
There is something on your scan glass. My guess is you are getting the line on your copies when you run the original through the document feeder. If you get lines through the document feeder but not on copies made off the glass then it is a dirty scan glass. There is a thin glass strip where the document feeder feeds the original. Usually something like white out that did not dry smears off an original and ends up on this thin strip of glass. Scratch it off with your finger nail and use some glass cleaner to resolve the problem. The scan glass is about 1/2 an inch to an inch wide and will be on the same side of the machine that the copier feeds the originals in on.
Lift the scanner cover so that you can see the platen glass. Look to the left of the large sheet of glass and you will see a narrow strip of glass. This is the area used to scan documents fed from the ADF. Make sure that this glass is very clean. Use a damp cloth to clean any dirt or buildup.
A black line down a scanned page indicates a dirty scan glass. Lift the top of you scanner like you would putting a page or book down to scan. On the end of the scanner that has the document feeder you should see a thin piece of glass the is separate from the larger glass pane. This is the document feeder glass. Now check it over for a very small mark of ink or dirt. You can use regular glass cleaner to wipe this glass just spray it on a piece of cloth not the scanner then wipe. You may have to wipe and then try scanning several times if the ink or marker is died on. while you are cleaning you should also clean the main glass pane, it will make the scans clearer and crisper.
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If you are scanning using the Auto Document Feeder be sure to clean the glass where the documents get scanned. A small speck will cause a line down the page. On HP there is often a narrow strip of glass on the left side of the platen glass.
first of all try to make a copy..when you make a copy if you get lines..then clean the scanner glass and the rollers..if its still the same..connect the printer directlu to the wall outlet and then check
Even a single grain of dust or a single strand of hair on the scanning glass will cause the scan head to perceive ink/image where there is none. Deffinetly try cleaning the glass using a good window cleaner, and a cloth that is completely clean, or even a peice of newspaper. If the black line remains, I would suggest taking it into a service center to have the scan head itself cleaned.