In [Copies:] in [Copies & Pages], specify the number of copies you want to print.
Making a trial printing (Proof Print) (Here)
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 in [Output Method] is selected, copies are output in a set-by-set manner, for example, "Pages 1, 2, 3, 4, and 5", "Pages 1, 2, 3, 4, and 5", and then "Pages 1, 2, 3, 4, and 5". When the [Offset] check box is selected, the output position is staggered one by one.
When you select both [Collate] and [Offset] check boxes, the output position is staggered for each set, allowing you to easily prepare handouts.