Like most monochrome printers, don't expect to see the B431DN strutting down the catwalk-its matte black design is meant to match the universally drab aesthetic of most office electronics, but what it lacks in elegance, it makes up for in utility. The printer is easy to pick up at just under 26 pounds (average for a laser printer), and at 9.6 inches tall, 15.2 inches wide, and 14.3 inches deep, it's small enough for one person to transport
The appeal of the Oki B431DN lies in its simple setup and ease of use, but we wish the software came with an onscreen dashboard to show information like job progress or toner levels. Still, it's hard to complain about minor details when Oki provides other productivity features, like the internal autoduplexer that lets you save money by printing on both sides of a sheet of paper
The Oki B431DN is by far the most efficient of the printers we compared in terms of output speed, and we're impressed by how easily it outpaced the competition. The Oki product page advertises 40 pages per minute (ppm) and our test results for all three categories are just about congruent with those claims at 38.16 ppm for the 10-page presentation test, 33.3 ppm for the graphics page, and 33.86 ppm for a simple page of black text. If raw speed is your purchasing criterion, look no further than the B431DN.