The only solution I found is to replace the cartridge - I did it and it works fine now. B4 this, I cleaned the cartridge connectors according to HP instructions, but the error message kept coming back, but once in a while, I could print!?! It's possible, since these cartridges need super-special care when handling, that either dust somehow disrupted recognition of cartridge or maybe during the initial install of the cartridge I accidently touched somewhere I shouldn't have!...
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My Dell 725 printer keeps reporting 'unsupported cartridge' in spite of replacing with new one - what is going on??
Graham
I have the same problem
I have the same problem with my Dell 810.
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