Who has the longest running inkjet printer?

[The Hat]

over the years i've refilled the MP980's 6 ink carts for a total of 689 refills, most ink carts have only been replaced 2 or 3 times

Maybe you need to stock up on newer cartridges, because I found some of my BCI-6 carts failed in their seems and have now switched to using CLI-42’s for my i9950..