What a great idea to have the Combo 4/Pack. I find that this is a much more cost effective way to purchase the combo pack. Since purchasing the Combo pack I have never had to make an emergency trip to buy an individual cartridge.
I have owned a HP 8600 ink jet machine since this model came out. The reliability of the ink and the machine is terrific for a small business. My business needs sharp color and affordable printing in a jiffy and this combo completely meets my needs. The color is sharp and the equipment totally reliable. Great for copying or more often multiple color copies that doesn't stick together when printing. Toner works well on every type of paper I have tired - expensive slick papers thick absorbent paper as well as the cheap stuff.
I teach music for a living and do a lot of printing of sheet music. This is the best quality ink I have ever used and Staples always has what I need every visit!!!!
You can not beat the price on HP ink at staples. Plus you can turn in old ink cartridges for $2.00 reward so you get dollars off the ink you buy. and the combo pack also saves you money.
HP inks worked like a charm. I've had a number of HP printers over the years and have never ever had a problem with any of them because of the inks I use. Many companies offer substitute inks for cheaper prices but I've always said "If it ain't broke don't fix it." I will always continue to use HP inks only. Thank you HP for such great "workhorse" products and for making my job easier.