Split Document in Pages

[Martin Sommer]

Hello everyone,
I have a long document, including some coloured pictures. I would like to 
print the coloured pages on a different printer.
In LyX I can only print into _one_ ps-file. How can I produce separate 
ps-files for each page with Lyx? Or is there a way to split the whole ps-file 
into pages?
Can I separate coloured from b/w-pages and put them into different directories 
or do I have to sort them maually?
Thanks so far,
Martin