Probably there are, I have not checked for people who take your old cartridge and refill it yet. I was looking for ordering new ones online but so far all the compatible ones I find are like $18 + shipping for high yield. Where genuine normal yield is $22.
Once you factor in shipping not that much savings.
The printer uses the HP 61 or HP 61 XL cartridges in the US and likely also in Canada. In Europe the HP 301 or HP 301 XL cartridges, which are identical except for a different region code, are used.
If you search for refill HP 61 or refill HP 301 you will find instructions and sellers of ink sets and accessories. A priming clip is important to remove air bubbles from the refilled cartridge. But these cartridges are difficult to get working reliably after a refill. I have refilled many of these and similar cartridges for HP and Canon. I think my success rate is below 50%.