[cups.general] RIP once, print many

[John Jason Jordan]

I have two printers, a Laserjet 5Si and a Laserjet 8000. They are
essentially the same (same toner, lots of identical parts), but the
8000 is a later model. For me the big difference between the two is
"RIP once, print many," which only the 8000 can do. "RIP once, print
many" means that when you ask the printer to print multiple collated
copies it images the entire print job once, saves the image in the
printer's memory, and reprints the remaining copies from the image in
memory. The result is that the first copy may print a bit slow,
especially if it is a complex document, but the remaining copies print
at the rated speed of the printer because the printer does not have to
re-image the pages.

My problem is that this works fine from all applications in Windows,
but from Adobe Reader in Linux CUPS holds the print job and re-images
it for each subsequent copy. 

In Adobe Reader I can specify an lpr command, but I can't figure out
the syntax to make it enable RIP once, print many.

Does anyone have any idea how to do this?