HP 60 Cartridges A Real Faillure (Canada)

[Luconator]

I Work at a refilling store called island ink jet and we've been refilling Hp 60 cartridges for a while until we realized that 80% of them had come back because they had malfunction after a few uses.

We first thought it was the circuit witch was made in a way of a single use mostly like the Epson 69,78,88. But we then discovered something really tricky : the sponge of the hp 60 is not taking must ink but the one from the hp 60XL is taking up to 15ml of black b7 ink. So by opening the cartridges up and change the sponge of a hp 60 for the sponge of a hp 60XL and fill it up to 15ml, it would not only re manufacture the cartridge but also make it a XL all the time(more ink we like Xp).

Has someone tried or discovered something about this subject?

 

[nevarDeath]

What is the expiration date on the cartridges? I am having many problems with carts dated 2010 and 2011, but very few problems with the ones before, that with a catch...I have to clean them out with a centrifuge. Do you just refill these while the customer waits? I have had a horrible success rate doing it that way, so I just clean and fill a bunch of these at once, so people don't have to wait. I would advise anyone else to do the same.