Excerpt: The X6570's helpful installation program includes automatic print head alignment. This is the only printer in the group with built-in support for wireless networking. You have to use the included USB lead to set it up, but you can unplug it once it's configured - or use a normal cabled USB connection to print. Text print speeds were very fast, both at draft and normal quality. Draft prints were easy to read, but some letters were broken.
Summary: The Lexmark X6570 isn't particularly cheap, and there is obviously the question of whether the text output would really be good enough for business work -- in many cases, a cheap mono laser would be a better bet. However, you do get good fax facilities and colour printing, and if the wireless facilities are of interest then this makes a very decent buy.