I bought our hp officejet pro 8620 in July 2014. We did not have to change ink cartridges until December 2014. After changing the 1st set we have replaced 2 more times in the last 2 months. I have done everything hp told us to do to get the best use of the cartridges. With no avail 1 week after replacing them the 3rd time it is telling me 2 of the colors are empty and now cant use the printer. I would not recommend these cartridges to anyone.
I purchase my replacement ink cartridges for my local Staples store located on South Hill in Puyallup WA. I always receive friendly and knowledgable service. I like to purchase my ink replacements at Staples because I can recycle my empty cartridges and receive bonus points. The redeemable points are easily accessed through my email.
What can I say this product its great. Some what expensive (but all ink is) to use but great. I use the XL and regular they both work. All my copies fax or what ever I use the printer for comes out great. Even when I had a large job to do it did well I was able to get the job done in one sitting and not have to worry that I needed more ink. The job came out perfect and got to the customer in a short period of time. They were able to do their jobs because my job was done right so they got good roper. Just don't know what I would do if we did not have good working machines to help out with our daily work.
I use this ink in my work printer. It never smears and does a wonderful job but for all the more sheets you get out of the ink I find it to be a bit pricey. I seem to be replacing the ink (color and Black) much more often than previous printers I've had.