|a) NET USE LPT1: \\[Computer Name]\Printer /PERSISTENT:YES|
Since you are in a round about way using a networked printer, the ability to print to the device directly has been removed. The software for the printer should print as any shared printer should.
The questions you have are very old dos questions that should change the font even today and any one of them ought to work.
Instead of printer name you can be sure to use the IP address and you have to be sure you have properly shared the printer for networked printing.
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