SATO CL4NX Plus Driver Manual page 36

 Normally, you do not need to change [Port Number] (the default value on the product is also 9100).
 Normally, you do not need to change the timeout settings.
 The [Advanced TCP/IP Port Configuration] dialog box can be shown even after installing the printer driver
with the following procedure:
a. Open [Devices and Printers], right-click the desired printer driver, and select [Printer properties].
b. Click the [Ports] tab.
c. Click [Configure Port].
If you selected [SERIAL (COM)]
Note:
 You cannot set the same name as an existing port name.
 Select the same port as the connected product for [Serial port].
 For [Flow control], select [None].
If you selected [PARALLEL (LPT)]
Note:
 You cannot set the same name as an existing port name.
 Select the same port as the connected product for [Parallel port].
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