HP LaserJet 1022 Printer(Q5912A) : HP LaserJet 1022 Printer - Print: Up to 19 ppm (letter)/18 ppm (A4) black, up to 1200 x 1200 dpi black, up to 8,000 pages per month duty cycle; 1 USB 2.0 port // HP LaserJet 1022n Printer(Q5913A) : HP LaserJet 1022n Printer - Print: Up to 19 ppm (letter)/18 ppm (A4) black, up to 1200 x 1200 dpi black, up to 8,000 pages per month duty cycle; 1 USB 2.0 port, 1 HP Jetdirect Fast Ethernet embedded print server // HP LaserJet 1022nw Printer(Q5914A) : HP LaserJet 1022nw Printer - Print: Up to 19 ppm (letter)/18 ppm (A4) black, up to 1200 x 1200 dpi black, up to 8,000 pages per month duty cycle; 1 USB 2.0 port, 1 HP Jetdirect Fast Ethernet embedded print server, 1 802.11b/g wireless Ethernet embedded print server //