How to Specify a Classification Code (When Using the PCL 5e Printer Driver)
Click the menu button of the application you are using, and then click [Print].
Select the printer you want to use.
Click [Preferences].
Click the [Valid Access] tab.
Enter the classification code in the "Classification Code:" box.
Change any other print settings if necessary.
Click [OK].
Start printing from the application's [Print] dialog box.