Bug: Prism prints too many copies
The print dialog lets you set the number of copies you want. With some printer drivers, you get too many copies. Request 2 copies, and you get 4. Request 3, and you get 9. The problem is that Prism gets the message to print multiple ocpies, and the driver prints each of those multiple times.
This only happens with some Windows printer drivers, so one solution is to try a different or updated driver.
The other solutions are to limit yourself to printing only one copy. You could print to a pdf file, and then print the desired number of pages from another program.