These printers meet high-quality printing standards with true 600 x 600-dpi (dots per inch) resolution, 120 levels of gray, and a variety of fonts. Two trays (one holding 100 sheets and the other holding 250 sheets) allow printing sizes from postcard to legal without changing trays. An IrDA-compliant infrared port comes standard, allowing wireless printing from the latest IrDA-compliant portable systems. Two parallel ports and one LocalTalk port (with automatic switching among all ports) provide easy sharing and expanded use. Standard SIMM memory slots allow for memory expansion, optional printer language, or custom SIMM solutions.