Returns or changes default copies. Default copies is
the default values used by the PDL to control the number
of copies of each page in the print job that are
printed. The print job can override this value. The
list of supported values should be documented in the
device POS.
Additional information:
The supported values are 1 through 999.
Setting to an unsupported value causes the printer to substitute in a snap
value and to return <noError> status.
The snaps are as follows:
<1 snaps to 1
>999 snaps to 999