As long as you have created a workgroup, shared the printer on the host computer (ie the computer that had the printer originally installed on) and made sure that both the pc and printer are turned, and installed the printer on the client pc, ie other pc

You may have to ensure that you have given your printer a name

So if your workgroup is MSHOME and the printer an epsonC42 for instance,

Add your printer, choose network printer,
click connect to this printer and type in \\MSHOME\EpsonC42

Click Next and it should find your networked printer