How to select a printer port:
Taking G-3 106 as an example, other models of machines choose serial port or USB port.
(1) Click Desktop Start → Control Panel → Printers and Faxes to open the following window.
(2) Select G-3 106 printer, right-click and select "Properties".
(3) Click "Port" in the properties dialog box, for example, select "LPT 1: printer port". Click OK to complete the port selection.
Tip:
Usually, the port number of the parallel port integrated in the computer motherboard is LPT 1. If the parallel port is added by an additional parallel card, LPT3 or LPT2 should be selected.
If you use a USB cable, you need to select the corresponding USB port. At the same time, every time you install the system, you will automatically create a USB port, such as USB00 1, USB002, etc. , one-to-one correspondence with USB ports on the computer.