Multifunction mono laser printer 3 in 1 printer series hp laserjet m printing size in din a4 max print size 216 x 356 mm resolution 1200 x 1200 dpi connections usb 20 ethernet 101001000 print functions auto duplex secure print n up print booklet print functions hp eprint instant on technology digital sending paper input 500 sheets paper feed device paper feeder paper output standard 500 sheets printing technologies black and white laser printing