in its standard configuration the canon lbp-3500 delivers ultra high-speed high-quality printing for workgroups using windows.offering print speeds of up to 25 ppm, and resolution up to 2400 x 600 dpi (air equiv.), and standard print sizes up to a3, the lbp-3500 is the ultimate choice for any office environment. the lbp3500 can also be expanded with an extensive range of optional accessories 1200 x 600 dpi (air equivalent) 25 pages per minute (a4), 18 ppm (a3) fast 10 second first print speed prints all standard paper sizes up to a3