Lexmark MS810n / MS810dn / MS810dtn
Set the parameters in the printer.
From the control panel, navigate to the menu for the port settings.
Locate the menu for the serial port settings, and then adjust the settings, if necessary.
Apply the changes.
From your computer, open the printers folder, and then select your printer.
Open the printer properties, and then select the COM port from the list.
Set the COM port parameters in Device Manager.
Need to set up a WSD printer for printing and scanning? Check out the following steps to get started.
How to print from Windows 10