Question about HP Scanjet 4850

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Horizontal Lines When scan an 8.5 x 11 document on the HP ScanJet 4850, the scanned image always has black horizontal lines of varying thicknesses appearing at the bottom of the document. The top of the document is close to the scanner's hinges. So the problem lies in the area where the scanner bulb reaches its end of travel. Any ideas.

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  • jodell8964 Jan 28, 2008

    Updating the drivers failed to cure the issue. I am still seeing the horizontal lines/banding at the bottom of the scanned page. I believe it's a hardware issue. Are there any gurus out there that know scanners like the back of their hand? Does a scanner operate like a laser printer but in reverse?



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This might be a hardware problem, but it could also be caused by an outdated (or corrupted) driver; you could uninstall the original driver, then download and install the newest version directly from HP here:

If that link is broken, or doesn't work for you, use this one:

Also, I've copied the following information directly from the HP 4850 Scanjet user's manual:

If you have the HP Image Zone software installed, you can use the onscreen Help to solve other problems with the scanner. To gain access to the Help, open HP Solution Center, click Help, and then click HP Scanjet 4800 series scanner Help. The Help system provides information about the HP Scanjet 4800 series scanner hardware as well as information about the HP Image Zone and HP Scanning software itself. Also, see Scan troubleshooting in the general Troubleshooting and support section of the Help.

Good luck with this; let us know what you learn...

Posted on Jan 28, 2008

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I need the driver of scaner HP4850,pls give me link free on internet or add website

Posted on Jan 24, 2009


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