Printing on two sides does not work

Hi,

There is a issue with manual duplex (printer LJ 1022nw, HPLIP 2.7.10,
Debian 4.0r1). When I print with "lpr -o sides=two-sided-short-edge",
it prints all pages on one side without time to re-insert paper.

I saw these instructions:
http://hplip.sourceforge.net/howtos/printing.html#manualdup.

So, it means that this feature is not realized? Is there a chance to
get it in the future? As I understand, now I have to print even pages,
re-insert paper, *return to my computer* and send another job to print
odd pages. But in time I walk, anyone can print something on my pages.
Instead of that it is good to do it in one job just to pressing button
in printer after re-inserting (as in Windows). Is it possible?