Printing Multiple Sets of Copies
Specifying the number of copies ([Copies])
In [Copies] of the [Print] screen, specify the number of copies you want to print.
Printing by sets ([Collate])
When multiple sets of copies are printed, the paper output position of each set is staggered to help you locate the first page of each set.
When the [Collate] check box is selected in [Output Method], copies are output separately in a set-by-set manner, for example, "12345", "12345", and "12345".
in the upper-right of a page, it turns into 
and is registered as a bookmark.