First of all, while I ordered this specific product, I received black ink in a different packaging, with the same characteristics but I don't know. Well, while I follow exactly the refilling process that I always follow and works, this specific ink, in the first few hours, works fine, and the next day if I try to print something, it has dried up in the head. Which means that every time I want to print something, I have to redo the whole process from the beginning, and of course, this costs much more than buying genuine ink. Wasted money for me.

The prints become very affordable with the refill. Important, buy the decompression kit. Otherwise, it will not work properly.

Now I don't need to buy the genuine ones again. I have printed so many times, and with just one refill, I have made the money back from the genuine ones. Perfect.

You must use the decompression mechanism for guaranteed results. This mechanism is used to bring the ink towards the front part of the head.

EXCELLENT!!!!!
It easily lasts for 4-5 refills and the print quality is excellent.
I have printed over 100 pages and continue without needing to refill the cartridge.
JUST BE CAREFUL ONLY DURING REFILLING WITH THE SYRINGE BECAUSE IT CAN EASILY GET MESSY.

Just super easy! I was clueless! First time I filled ink... I put in 8 ml, cleaned the head with a little antiseptic (this was easy to find), and it produces better prints than the original ink!! With 10 euros for 100 ml, it has already paid for itself.. I'm just sorry because now some small professionals will lose me as a customer.

I have been refilling my ink cartridges since 2008-2009 and I have never had a problem with black and white ones. If the refilling is done correctly, you save a lot of money and running around because you fill it up when you need it with a low cost. I highly recommend this specific product without reservation!!!!

I bought this ink to refill (I did it for the first time) an old HP printer that uses ink 652. I got the black 100 ml and the colored ones in a triple set of three colors per 50ml. With a regular syringe from the pharmacy and instructions from YouTube, I filled all 4 in about 15 minutes by myself. The printer took 5-6 full head cleanings (from its software) and my hands got filled with ink because I didn't wear gloves during the refill. The quality of the inks is excellent and my hands are clean after cleaning them with baby oil (this is also recommended online).