- Click Application menu
Print
Manage Plotters. 
- Double-click the plotter configuration (PC3) file whose port settings you want to change.
- In the Plotter Configuration Editor, click the Ports tab.
- Select one of the following options:
- Plot to the Following Port. Sends the drawing to the printer through the specified port.
- Plot to File. Sends the drawing to the file name specified on the Files tab in the Options dialog box.
- AutoSpool. Uses the AutoSpool utility specified on the Files tab in the Options dialog box to plot the drawing.
- For a device that emulates the configured device and has additional port options, select Show All Ports.
- To connect a nonsystem plotter to another instance of the device, click Browse Network. In the Browse for Printer dialog box, select the device and click OK.
- Click OK.