When I use the FreeBSD lp command with "-o Duplex=NoTumble" the option get lost. When using some other lp this option just works. How-To-Repeat: man -t zcat | /usr/bin/lp -d HL-5150 -o Resolution=1200dpi -o Duplex=NoTumble Result is a hardcopy with printers default parameters Install cups and use cups lp (or lpr, it also accepts -o): man -t zcat | /usr/local/bin/lp -d HL-5150 -o Resolution=1200dpi -o Duplex=NoTumble The result is what you wanted, HiRes on both sides.
State Changed From-To: open->suspended To submitter: I'm afraid this is not supported yet. To quote the man page: -o option Printer specific options. Not supported, provided only as a com- patibility option for SVR. Mark PR as suspended until somebody is able to implement this feature. As far as I can tell it's not straightforward, due to differences with lpr's handling of the Z option in control flags.