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Last year I bought two 956XL cartridges.  Installed one, set the other aside.  All good until I ran out of ink.  I installed the black 956XL cartridge I had set aside.  It is full of ink,  looks identical to the one I removed even to the warranty end date.  Both are 2020/10 made in Malaysia.

 

But moments after installing I get an error message that this cartridge is an older generation that cannot work with my printer.

 

I went through the troubleshoot steps of reset, check firmware (up to date), and cleaning the cartridges chip.  Error message remains.

 

This upsets me a lot.  These cartridges are darn expensive.  They are identical and purchased at the same time.  But apparently in some way the one I set aside is won't work.  Anyone know what I can do about this?

 

 

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