934XL 935XL High Yield Ink Replacement for HP 934 and 935 Ink Cartridges Combo Pack, Compatible for HP Officejet Pro 6830 6230 6835 6812 6815 6820 Printer, 4-Pack(Black Cyan Magenta Yellow)

Most Ink seems to be so expensive, i think this item is well priced for what you get, it works just fine, the printer notes that its not a genuine hp product when i put the cartridge in the printer. But what's on the computer screen comes out on the printed page, isn't that the ultimate goal?

I use it for my academic work. It is excellent.

Ink cartridge fit fine and worked without any problem. Quality seems fine especially for the $$. I have only been using it about a week but have not had issues. Cannot witness to its longevity yet.

I put it in and it won't work. My printer keeps telling me that there is something wrong with printhead. Put in a different ink by another manufactory and it works fine.

I've not had any issues with the cartridges. They all print and last as expected

I'm an Etsy seller, and I use my printer most often to print shipping receipts and labels--which have bar codes, and so need crisp, clear printing. I recently printed a large document (300 pages) with color photos, and at least twice had to cancel the printing, because it started skipping. Now that I'm using these replacement inks, I have to run my printer through a cleaning cycle frequently (twice during the printing of that large document), because my shipping labels aren't usable, and my packages won't get to their destinations. It's still more cost effective than buying Canon ink, but I am wasting more paper and ink, in both labels I can't use and in printing out a test sheet after AGAIN cleaning the print heads. Next time I'll look for another ink!

Was a member of one of those "send you ink" HP services. Then they sent me a package of used duds and they would not replace them. Quit the service and ordered these. I can say that my colors are brighter than the HP colors were. I am not calibrating colors every two weeks. Fit perfectly and are easy open and install.

Installed, got a message, not original HP, ok’d it and it worked well, print quality was good, don’t know how long will it work. Price is almost one fifth of HP. Good Value

Like the price and performance

No funcionaron

This is a very good product and I'm very happy with the results of my printouts

Did not work in my HP Officejet 6815 at all. Printer did not recognize it.

The quality is amazing! Very pleased!