After creating a document, open the [Printing Preferences] dialog box in the document's native application.
For details about displaying the [Printing Preferences] dialog box, see Displaying the Printing Preferences dialog box in an application.
Click the [Detailed Settings] tab.
In the "Menu:" box, click the [Print Quality] icon.
Set the convenient print functions.
To set the toner saving function using the PCL 6 printer driver, select [On] in the "Toner Saving:" list.
To set the toner saving function using the PostScript 3 printer driver, select a toner saving mode in the "Toner Saving:" list.
Change any other print settings as necessary. For details, see the printer driver Help.
Click [OK].
Start printing from the application's [Print] dialog box.
For details about the toner saving function, see Enabling the toner saving function.