Wrong background color

When my HP ScanJet 5100C scans I get a light blue background color (should be white) even with no document in the scanner.  I tried a new 5100C scanner without changing any settings.  Background was correct (white).  Looks like a scanner hardware problem.  Do you agree?  Is there any hardware adjustments I can make on the scanner? Would you recommend sending it to HP for service or would a local dealer be OK?
wgfowlerAsked:
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celticsConnect With a Mentor Commented:
The problem, as you stated is probably with the scanner.  If you just bought, ask for an exchange, citing the one that works without any problems.  One of the eyes in the optical read is out of adjustment.  If it is older but still under warranty, take to the local HP repair shop, otherwise, may be cheaper to buy another one than foot the bill for the repair.
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celticsCommented:
Try printing the results from the scanner after scanning without a document in the scanner and see it shows a blue tone to it.  If it does, adjust the Contrast and Brightness of the scanned image until you get the white bacground on it.  Another shot would be to scan a white sheet of paper that is non glossy.  Could be a reflection off the scanner light when you do not have anything in the scanner.
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wgfowlerAuthor Commented:
Thanks for your response.  Yes, printing shows a blue tone.  White sheet scan shows same blue background.  Can't find a Contrast & Brightness control on my HP Precision Scan software.  Still don't know why the new scanner has white background when the same document is scanned and my other scanner shows blue on the same document.  It's not just a faint blue, it is dumping a lot of cyan ink.
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wgfowlerAuthor Commented:
Thanks for the help.  Will look into repair costs.
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