my old Color Laser 3110cn got replaced with Multi-Function 3115cn I was buying from office depo office max or staples I did a search online where to buy Dell 310-8401 yellow Dell 341-3571 Cyan Dell 341-3568 black and 310-8400 magenta cartridges they came up #1 I was talking to Kevin at Crazy Inkjets the guy knows exactly which cartridges when to my printer. he did recommend to get their premium brand which I did after using there cartridges I came to find out non of this cartridges I bough from the storages had a extra capacity not only that upon printing my sheets all the colors came out nice. I been buying from them ever since I got my first order. I was trying to see if I can get a price redaction on this cartridges they have a bulk pricing as well I bough my second set half off. thank you Kevin for your knowledge and understanding on my printer.