The Lexmark X9575 is a business-class all-in-one machine with scan, fax, copy, and print capabilities, combined with easy wireless printing and built-in duplexing.  Print speeds range up to 33 pages per minute and feature a higher-end resolution of 4800x2400 dpi.  A built-in duplexer allows for simple two-sided printing. MS Office documents and PDFs can be printed directly from a compatible USB device, as well.  The X9575 uses 802.11g wireless printing and is compatible with IEEE b/g/n class devices.  The scanner is higher-end than others in the series as well, featuring an optical resolution of 1200x4800 dpi and 48-bit depth.  The included software contains OCR compatibility.  The 50-page automatic document feeder can be used for scanning, copying, and faxing.  Faxing utilizes a 33.6 Kbps modem and features auto-redial, caller ID, and a memory of up to 100 pages.  PC-free photo printing is easy to accomplish with PictBridge USB-compatibility, slots for all major flash-memory card types, as well as a 2.4" colour display screen for viewing and editing.