Xerox Phaser 3124. Maximum resolution: 600 x 1200 DPI, Print technology: Laser. Print speed (black, normal quality, A4/US Letter): 25 ppm, Time to first page (black, normal): 9 s. Internal memory: 8 MB. Processor clock speed: 150 MHz. Standard tray media types: Plain paper, Envelopes, Labels, Transparencies, ISO A-series sizes (A0...A9): A4, Non-ISO print media sizes: folio