Update: The HL-2340DW has been replaced by the 2350DW, which is more of the same, but even faster.
While it can’t print in color, this Brother printer can spit out 27 pages per minute, includes wireless networking, and uses inexpensive and long-lasting toner, rather than Inkjet cartridges that dry out after a week of non-use.
The 2340 is just one of a spectrum of similar Brother printers though, so even if it doesn’t check all of your boxes, you should be able to find one that suits your needs.
For example, the HL-L2300D keeps the 27 page-per-minute performance, but comes in at a lower price at the expense of wireless networking.
And if you need a flatbed scanner and copier, the HL-L2380DW is exactly what you’ve been looking for.