Xerox Phaser 3600/N. Maximum resolution: 600 x 600 DPI, Duplex printing: Optional, Print technology: Laser. Print speed (black, normal quality, A4/US Letter): 40 ppm, Warm-up time: 31 s, Time to first page (black, normal): 9 s. Internal memory: 128 MB, Maximum internal memory: 512 MB. Processor clock speed: 400 MHz. Standard input capacity: 600 sheets, Maximum input capacity: 1100 sheets, Multi-Purpose Tray capacity: 100 sheets