950/951 Printhead Replacement for HP Officejet Pro 8600 8610 8615 8620 8630 8640 8660 Printers

I purchased this item when I got the error message on my HP 8620 Ink Jet Printer that the print head has failed. I haven't had to replace the HP JetDirect Print Head for the last 4 1/2 years. I was somewhat reluctant at first but I knew that it had to be done. When it arrived I had to watch a YouTube video to see exactly how to pull the old one out and install the new one. Pretty straight forward so far. But that's where the whole thing changed. You have to get it properly aligned one you put the Ink Cartridges into the new print head cartridge. So I started the alignment and it stopped working. The printing was terrible! So back to YouTube for a "Factory Reset Procedure". Wow that's getting complicated now! After a complete shutdown and Factory Reset Procedure plus an Alignment all over again...I was able to get a bit better print, but colors were not clear. So I had to reset again and do at least 12 prints before it was accurate. So now it prints like new. But that's a lot of work just to get the printer to print properly. Highly recommend that everyone carefully watch a Step by Step procedure while doing the installation. Now it looks great!!

I often wonder why it seems so difficult to make a relatively simple product that just works the way it is supposed to. The answer must be the “bottom line”. What a shame. The printhead installed easily but I repeatedly got the “alignment unsuccessful” message mentioned in other reviews here. Initially, the printer was “printing” only blank sheets of paper. The cartridges all had ink in them. Finally, the black ink started coming through and later the cyan. Every now and then I saw a little bit of the magenta color. So far, magenta and yellow are still not working and I have used up quite a bit of my full cartridges with repeated attempts at printhead cleaning. I suppose this printhead is a knockoff and not an HP made part. Perhaps the circuit board is unreliable. I saw the bad reviews before buying but figured I would try to get my printer working again. Looks like this was an expensive stopgap measure and now I have to buy a new printer.

I’m very happy with the item. It worked out great installed very easily and it’s been working since I installed it.

Had an old printhead that would was reported as "missing or not installed correctly....." by my HP 8630. Tried the cleaning tricks on YouTube without success so opted for the complete replacement. The internet said this may or may not work, but in my case it started right up with the new printhead. No more error messages. The printer wanted to do a printhead alignment which resulted in mostly blank pages with an "alignment unsuccessful" message. Stepped through the 3-level "Clean Printhead" process, and got a decent printed page at the third level. Tried another "align printhead" process and while the printed page looked good, the printer still stated it was unsuccessful. Went ahead and started using the printer for print jobs, and acme back to the "align printhead" process several hours later. This time it was successful.

This printhead had no installation instructions. If you buy one note that there are small plastic covers on the ink tubes that have to be removed before it can be installed in the printer.

This product was broken upon arrival. There was something rattling inside the printhead. Would not work in my printer. The printer wouldn’t acknowledge the print head. I requested a refund and put in a claim and no body has contacted me. It’s been 2 wks. Very disappointed Amazon. I have been a loyal customer for years. It’s not too late to do the right thing. I cannot use my printer without a working printhead.

I ordered this replacement head as I got an error message on my HP 8600 Ink Jet Printer that my print head has failed. This is a drop in replacement and is easy to install with clear instructions (you can refer to youtube videos as well if required). You have to properly align it once you put the Ink Cartridges into the new print head cartridge. It worked perfectly for me.

Didn't fix problem on printer