Epson DLQ-3500. Maximum print speed: 550 cps, Maximum resolution: 360 x 180 DPI, Maximum print speed (draft): 594 cps. Paper tray media types: Envelopes, Labels, Plain paper, Roll. Product colour: Grey, Buffer size: 128 KB, Sound pressure level (printing): 59 dB. Standard interfaces: Parallel, USB 2.0, Optional connectivity: Ethernet, Serial (RS-232). Print head: 24-pin, Print direction: Bi-directional, Print head life: 400 million charactersThe Epson DLQ-3500 offers ultra reliable flatbed printing with Epson quality and speed. Like all dot matrix printers in the Epson range this highly developed impact technology remains the most efficient, productive and cost effective way to print on multi-part stationery. Crisp, clear output can be achieved on multi-part forms up to eight layers thick. Key Features - Prints up to 8 part forms (1 original + 7 copies) - Parallel and USB interfaces with optional Ethernet, Twinax, Coax or Serial - Colour printing (supplied with both black and colour fabric ribbons) - Automatic Sheet Alignment Unit (optional)