"Lex" is this catalog's shorthand for Lexmark, and the XM3350 is part of Lexmark's mono laser multifunction printer range — a business-oriented device combining print, copy, scan and (on most models in this series) fax in one unit, aimed at office workgroups rather than home use. The XM-prefixed model numbers are Lexmark's international naming for what's sold domestically under the MX range, generally featuring an automatic document feeder, network connectivity and a touch control panel. This catalog entry carries no further detail beyond the model name itself, so exact print speed, paper capacity, duty cycle and specific feature set (fax, duplex ADF, finishing options) should be confirmed against Lexmark's own XM3350 datasheet before quoting to a customer with specific throughput requirements.