I have CUPS set up and printing to a network printer with a duplexer. Under lpd this printer printed perfectly in duplex, but under CUPS I can only print in simplex. I've tried using "lpr -o sides=two-sided-short-edge -Pprinter filename ENTER" but it prints simplex (as it does when I don't use the -o option). Does anyone know what the deal is with duplex printing to network printers using CUPS? Am I missing something?
Manor Lev-Tov
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