I have now bought the 850 MX for three offices! Beginning the previous MP 830 a very good device, the 850 just a tad more: the option of integrating the device directly into the LAN is functioning properly! I printed at three locations from the notebook via WLAN (and thus into the LAN) for months at all without any problems! The scanner function is very fast compared to competitors. The term in both black and color is excellent and fast. Borderless photo printing is available in both photo paper as paper flyers bliss! CD printing is simple and in outstanding quality. Fax features, and more, what an office needs. Batch scanning is also hervoragend. Unlike other devices, I have here with large documents with over 150 pages ever experienced on any of the devices feeding difficulties! That is rare! But important for batch scanning! The software is mature! Canon provides mE with everything that is really useful and helpful. The software is also intuitive. Ins Guide I have not need to look. The inks are not cheap, but the consumption is ok if you do not permanently printed in color, which indeed is not the norm in the most common business. And another reviewer found the blinking lights affig ... Whoever only once in the shadows in the corner office had to open a printer, then a switch of five cartridges ... is the MX 850 for its flashing LED in-replaceable ink love! Unique and foolproof as it gets. Completely satisfied, I like to give the 5 stars. Comparative device of this quality there are a few, I would only have flirted with HP. There is a similar delivery even WLAN. But hand on heart, the printer is connected via LAN, which is actually in the office always possible, everyone can use it. And Wi-Fi is more worthwhile for the private user. And on most LANs depends eh off a WLAN. Thus, the advantage of the MX 850 is then to find for the fact that it can print on CDs beautifully simple. That's a real advantage, which I enjoy very much, but there are dozens of bad beschrifteteten CDs on the desk, bringing the much mess with it. Great equipment, mature hardware and software I had in the last six months at three devices do not have to experience a problem! What more do you want?