Lexmark (LXK -16.3%) closes at multi-year lows thanks to an ugly Q2 warning. Goldman (Sell) is taking a hammer to its 2013 and 2014 estimates, declaring the headwinds to Lexmark's high-margin printing supplies business to be worse than feared. Though no full-year guidance revision was provided, Brean Murray thinks 2012 EPS could be around $4, compared with prior guidance of $4.70-$4.90 - that still gives Lexmark a forward P/E of just 5. HPQ -1.9%. XRX -1.8%.