Review on HP 564 Ink Cartridge - Yellow - Compatible with HP DeskJet 3500 Series, HP OfficeJet 4600, 5500, C6300, 6500, 7500 Series, B8550, D7560, C510, B209, B210, C309, C310, C410, C510, CB320WN by Samuel Groove

Totally upset with Revain when I realized I had ordered Hp 950 ink (black) and three color 951 Revain changed my order to a 951 (cyan), a 950 (black) and each an HP 564s (yellow and magenta) as if they were compatible with the 951. Well the HP 564s are NOT compatible with the 951 and when I used the cartridges today (expired) they obviously were NOT working. . They are actually a different size and I was stuck in the way I needed to take an important photo.