Question about Canon CanoScan 4200F Flatbed Scanner

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"Noise" on scanned photographs

When I scan a photo on my scanner horizontal lines (usually two or four) of various colours have started to appear on the pictures. Is there a solution?

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Re: "Noise" on scanned photographs

If you are able to open the cover of scanner glass then pls clean the glass and see.

Posted on Nov 16, 2007

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Re. HP ScanJet 3970 Flatbed Scanner Horizontal lines.\r\n When I scan, I get light coloured lines approx 2mm apart across the complete scan, which show up primarily on the dark colours. Different...

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When I scan 4x6 photos there is a line (sometimes green) across the entire photo that used to not be there. Scanning larger 8x11 photos the line does not show or when scanning documents. Help! I'm in...

If line is vertical.

Try scanning a bigger document. Use a blank page big as the scan capacity and scan the blank page.

If for example you are using an a3 scanner, scan a blank A3 page.

When scanning blank page set resolution to an high value, so that you does not lose pixels.

Check scan result, and explore the whole document using zoom to see if the line is still present on the test scan of the blank page.

If there is still the line, then it is either a scanner dirty, probably inside glass, or a dafective sensor on CCD sensor array.

If there is no line, then the problem is usually depending on the software.

In that case uninstall the software and install it again.

If that is not enough to fix the problem, try uninstalling software, doing a system restore to a date before the problem started , and then installing software again.

If the line is horizontal , that is usually a loss of power on the high voltage to lamp.
Try reinstalling software first, if that does not fix the problem , and line is horizontal, then it is fault mentioned above.
Horizontal lines at the end of a document may also be caused by faulty scanner control board, or scanner going out of memory.

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