Hi. I had okular fail at printing for myself, too. I ran okular from an xterm and noticed that it output this to stderr when I tried to print:
usage: lpr [-cdfghlmnpqrstv] [-#num] [-1234 font] [-C class] [-i [numcols]] [-J job] [-Pprinter] [-T title] [-U user] [-wnum] [name ...] I ran aptitude install cups-bsd and that resolved the problem for me. The version of lpr in lpr package, which I had at first, didn't work.
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