The HP LaserJet Pro 400 M401dn monochrome laser printer offers better than par output quality and paper handling. But it's slow. 3.0 Good. By M. David Stone . Jul 17, 2012. 3.0 Good.

Output quality and speed are the HP LaserJet Pro 400 Color Printer M451dn’s strong suits. If you need the Wi-Fi connectivity that it lacks, its otherwise identical cousin, the M451dw, is only ...

The HP LaserJet Pro 400 M401dn monochrome laser printer offers better than par output quality and paper handling. But it's slow. 3.0 Good. by M. David Stone . Jul 17, 2012. 3.0 Good.