How long have you had the carts? And did the chip get any ink on it? This can short it out (also static can).
Also, does this chip have a battery in it? (aka, It's reset with essentially a fancy paperclip and not the larger resetter device). If this is a battery style chip, the battery could be dead or just miss-placed (they do go dead over time). I generally start by taking the battery out in the back and putting it back in. This tends to revive these chips if they are battery-type.
We sadly no longer support this printer with chips/carts.