The HP LaserJet 6P printers feature professional, high-quality laser printing. The printers feature Resolution Enhancement technology (REt), enhanced business graphics and the HP PCL 6 printer language. ??The HP LaserJet 6P printers have two standard paper trays. The printers handle a variety of paper sizes and types. The HP LaserJet 6P also boasts two bi-directional, industry-standard ECP IEEE 1284-compliant parallel ports, and one fast, wireless IrDA-compliant infrared port. The printer will automatically switch between ports when multiple connections to the printer are used. Optional HP JetDirect external network print servers provide easy printer sharing.