Do you actually need DOS command? I ask because you call notepad.exe, which isn't a DOS command - it is standard Windows application. I would suggest creating batch file and placing two commands inside: one should copy file, and another - print it.
Like, create file "MyCopyAndPrint.bat":
COPY %1 %2
TYPE %1 > PRN
You call this batch file like
MyCopyAndPrint.bat <FileName> <Destination>
There may be variations of the syntax:
XCOPY[
^] instead of
COPY[
^], quotes around "%1" and "%2" (which are source and destination, respectively), usage of
PRINT[
^] command instead of redirecting output to
PRN or LPTx[
^] devices... the result is basically the same :)