be very careful. HP put timeout chips in alot of their cartridges...my #88 cartridges are good for I think 18 months then they automatically expire. Even if you haven't opened them. Like the ink is going to dry up inside them. It's a big scam to get you to buy more.
fyi there is a guy on ebay who sells megaload cartridges for alot of hp stuff...might be worthwhile looking into it.
I have a k550 pro here and probably spend $1500 a year on ink. Ripoff.
And filling sucks...as does rebuilt cartridges.
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