Depends also on how long it takes before you empty all the carts after the purchase. Next, with a lot of expired carts HP has all kinds of warnings ready in the firmware. I have out of warranty heads and expired carts in the Z3100 and it still runs well. I do not see why it would influence longevity either.
met vriendelijke groeten, Ernst
Thanks for the reply.
All the carts being offered to me are in their respective boxes, unopened since they were bought. Just for curiosity...why HP puts a expiration date in the Vivera inks and printheads? If the pigment ink it´s not in contact with oxygen, they should last many years... Am I wrong?