Summary: I bought this printer three years ago and have changed all the toners at least twice, so I have done quite a bit of printing with it including 1-sided B&W and color, and 2-sided B&W and color. The reason I bought it was because it was a color laser printer that prints duplex on a secure wireless network. The good: Ease of setup - the instructions are thorough and well illustrated. It's not very complicated to get it operational.
Summary: I have been using the Brother HL-4070 for a few months. It is very easy to operate and does duplex well even though it is slow when in the duplex mode. I have been satisfied with the print quality and the speed at which it prints. This is the best printer I have owned for my home office use with one exception. I'll explain that in as much detail as I can. I rated it two stars because there must be some kind of flaw in the toner cartridges.
Summary: I have been using a Brother MFC 4350 (monochrome laser) printer for several years. Although it still prints well, I wished to replace it for three reasons. (1) I occasionally do large print runs, and I wanted more speed. (2) Those large print runs involve envelopes, and I can print only about seven envelopes at a time. (3) The manual duplex sometimes double-feeds sheets on the second run, leaving the pages out of order, so I wanted automatic duplex.
Excerpt: The Brother HL-4070CDW color laser printer is not cheap, but it does have a lot of extras and upgrades that warrants the price. Unlike previous models, this newer version will allow wireless connection, duplex print and postscript emulation. The input tray of this printer will hold 250 sheets of regular typing paper, while the multipurpose tray can hold up to 50.