HP Officejet 4500 Wireless. When I attempt to scan, I get a window 'LCD list needs to be upgraded'. When I click on, I am directed to a screen to upgrade, but do not what to do to upgrade. I have moved 'Scan document menu' and 'Scan picture menu' from left to right windows, then click on 'upgrade system' and I am still not able to scan; I get the same 'LCD list needs to be upgraded' window. Please advise. Thanks, azinfan
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