TrustedReviews posted a review of the HP LaserJet 2420d

HP produces mono laser printers ranging from small personal devices up to huge departmental behemoths. The LaserJet 2420d sits some way above the personals and is a fast office or small workgroup device. This model isn't enabled for network use, though you can add various cable and wireless options as needed

HP LaserJet 2420d Review