Printing Landscape in Solaris 10

I can print lanscape to a printer in solaris 9 but it won't work in solaris 10 to the same printer. I'm using the same configuration and the same command which is below. Any suggestions would be greatly appreciated. Thanks.

lp -d hp4100 -o "c landscape" filename

> alias lp4
alias lp4='lp -dtech4b -o landscape -o c'

So, do either the 'c' or 'landscape' work? Nothing print?

In solaris 9 the "c" and "landscape" options work but in solaris 10 they don't seem to or at least the landscape option doesn't. The printer will only print portrait in solaris 10. I'm using the same model script for both. Thanks!!!

what printer are you using? If it gonna to be hP, i've got a clue for you.

Its an hp4100dtn. I just figured it out. I use the postprint command and pipe it into the lp command. example: postprint -p l filename | lp -dprintername -o c