Gohepi Ink Cartridges Compatible with HP Officejet Pro 8620 8610 8600 Plus 276dw 8100 8615 251dw 8625 8660 8640 8630 (HP 950 951) 4 Black/2 Magenta / Yellow 2

Perfectly working!Recently HP has released firmwares for there inkjet printers that blocks the usage of non-HP OR HP compatible 3rd party cartridges. Simultaneously HP did launch instant ink program to compensate users, and that is pretty good by HP, much appreciated. I had some cartridges from another seller and they stopped in the middle of usage giving an error msg "one or more cartridge is damaged". The firmware basically locks the cartridges forever via chip to be useless at all. I came to know this after extensive research that included calls to HP as well. Later on in got a call from HP that they have launched another firmware that allows again use of 3rd party cartridges.These cartridges are good and work perfectly!But future can be different. So please read the date of my review.

Initially these cartridges looked the same as I'd bought from another web retailer where if I didn't use the printer every day I would have to go through a head clean. To my surprise the Gohepi cartridges print regardless how often I use the printer without ever having to go through a head clean (which uses the ink up). The print quality is good which is important to me. A full set of genuine HP inks would cost anything up to £96, multiply that by 2 and you can see that you make a great saving.

Having bought this brand before and having no issues, I decided that I would buy them as a replacement on a different printer. I used one of the black inks and had no issues. However, a subsequent replacement cartridge has not produced good print quality. In fact, it's been terrible. My printer also does not recognise these cartridges as genuine. I have run diagnostics on the printer, because I have never had this problem before, and there are no issues with alignment or printhead. I have wasted a lot of ink, paper and time reprinting documents because lines of text have been blurred and cannot be read.If I could return these cartridges I would because I spend too much time trying to solve the print issues.

We typically print in black and white, but for some reason 2 of our colours had run out and the printer wouldnt let us print in black and white even with a brand new hp black cartridge. They have some stupid rule that if any of the cartridges are empty the printer would not print in any colour. As HP ink is over £70 i thought I will try these guys. I installed them and it worked straight away.

A little nervous buying these non HP cartridges - they are working very well though!

Arrived promptly, fit, and seem to be working fine. No concerns

I took a chance with this purchase at less than a quarter of the price of the HP cartridges I usually get, I use the printer for letterheads and Involves, I haven't noticed any difference are we being ripped off by HP. thank you Gohepi

It works! I think that says it all. I am sick and tired of buying replacement ink cartridges that give you more problems than solutions. These cartridges are economical and it works!