It took a while to get the HP printer to accept the new cartridges. HP automatically identifies them as foreign or non-HP cartridges. But after struggling a bit I got my printer working. HP wastes too much ink going through its 7 minute warm up, which happens each time I turn my printer on. So I have decided to leave the printer on all the time, and because of that, it print immediately. That’s what I expect! Prior to receiving your cartridges, I already had black ink, but colored cartridges were empty. Therefore the printer would no longer work, even for black ink. Now that I have added your color cartridges, the level for red and yellow cartridges show completely full, but for blue ink (Cyan) shows incompletely full, where the indicator shows (incomplete) or lines up and down the indicator. Likewise when I print using color, the Cyan does not appear to print in all areas of the page. Since I just replaced my Printer Head very recently before I added your cartridges, I am suspecting that this is a printer head problem and not a cartridge problem (since it is a refurbished head). Otherwise I am happy to be able to print again! For too long I have had to use my city library to print things and my 2023 taxes. The fact that HP wants to control functionality based on availability of ink in all cartridges makes me want to reconsider buying from HP in the future. Likewise their newer printers all require internet connectivity in order to work. I am definitely against that. I want my printer to work from my USB port. I bought a new printer and took it back for that reason. Too much intrusion on me for HP to control my destiny in how I must use their products (making me subject to their checks and balances) does not bode well for me.
The packaging of your product to me was exemplary. The delivery and presentation of your product was top notch. I have no complaints, just accolades for your business model and service.

Checked out, received cartridges, unboxed, peel, install, and print!

This is the best deal I have found online so far. Great job yoyo ink!

the yellow cartridge no work. I call seller and they send me new cartridge

I've bought these a few times now and only had one problem. One of the black inks leaked inside the cartridge making a huge mess. I took a chance and just cleaned it up and used it, and it did work fine. I've had much better luck with these than the brand of remanufactured cartridges at Fred Meyer.