Xerox Phaser 3600 Laser Printer, e-click, 38ppm, Network. Maximum resolution: 600 x 600 DPI, Print technology: Laser, Maximum duty cycle: 200000 pages per month. Print speed (black, normal quality, A4/US Letter): 38 ppm, Warm-up time: 45 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