High speed printing amp image processing the robust proxpress m3870fw features print speeds of up to 40 ppm powered by a cortextrade a5 core processor and 256 mb of memory it delivers unsurpassed performance for business applications and with a duplexing automatic document feeder dadf able to process pages at up to 24 ipm scan and copy jobs are a breeze high performance coupled with ease of use enables businesses to accelerate document and image processing for increased efficiency