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HP OfficeJet Pro 7740 Wide Format All-in-One Printer
Microsoft Windows 10 (64-bit)

I was very annoyed to get a "NON-HP chip" rejection of a new cartridge installed into my 7740 - this has never happened before, and I can find no way to get it to accept the responsibility for using a cartridge from another manufacturer and get on with my work. On other printers I've just had to accept that I've read the cautionary note - and carried on working. 

 

If I can't get the printer to accept non-HP cartridges, I will never buy another HP product since their own cartridges are way over priced. I hope this can be rectified - and soon!  I can't believe I'm the only one that feels like this! 

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