The Lexmark M1145 systems bring power & speed together in a space-saving size. Built to handle the requirements of a busy work environment, the M1145 & M3150 will produce high-quality professional output in next to no time. Process even the most complex jobs utilizing the 800 M Hz dual-core processing power & up to 3GB of memory Get work done quickly with print speeds up to 50 ppm & produce your first page in as little as 6.5 seconds Produce professional output with a system that delivers consistent image quality on a diverse range of materials Instant warm-up fuser helps reduce energy consumption & improve time to first page