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‎02-09-2022 02:37 PM

HP Recommended
Product: HP LaserJet Pro M1536dnf Multifunction Printer
Operating System: Microsoft Windows 10 (64-bit)

HP 1536 MFP - it just started printing "Incorrect license key or demo evaluation period expired" across the page when printing landscape.  I bought two of these new in 2010 or so and they have worked well until now.  I've moved several times and don't know if I've ever had a license key, but don't have one now.  Help?

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