[cups.general] duplexing doesn't work with backand

[Andrew Gaydenko]

Hi!

In very simple backend script I use this string:

/usr/local/bin/x2kyo $6 | lpr -P 'FS-1030D' -o sides=two-sided-short-edge -o media=A4 -o raw

x2kyo is my pstops-based piping script. The problem is, when I use the
backend as 

lpr -P X2 1.ps

(X2 is a printer name), duplexing doesn't work, and, it seems, media isn't respected
also (at least margins are not as expected), while direct call

/usr/local/bin/x2kyo 1.ps | lpr -P 'FS-1030D' -o sides=two-sided-short-edge -o media=A4

works fine.

What have I missed?


Andrew