Although the Brother Intellifax 4750 offers the highest fax resolution, it is not really up to par for an all-in-one device. Yes, it offers a fax modem speed of 33.6 Kbps and a built-in Super G3 fax modem, plus an optimized fax technology; but if you are looking forward to getting clear and crisp copies and prints from this, you might be in for a disappointment. Copies have a maximum resolution of only 600 dots per inch, and print speed is really sluggish. But if you've already got this machine and use it mainly for faxing, then you can always make the most out of this by getting a more affordable replacement toner cartridge. Inkjets can help you with that—we've got the best deals on compatible Brother toner cartridges including the Brother TN460 Compatible Black High-Yield Toner Cartridge. Got inquiries? Feel free to contact us—one of our friendly customer service representatives will be glad to assist you.