For Windows Users:

1. Open the Properties dialog box in the printer driver.

2. Click on Printing Preferences and select "Advanced" tab

3. Select "On" or "Off" at "Toner Save Mode" section.

For Mac OS 9.x Users:

1. Open the "Print" menu and select "General".
2. Select "Controls printer specific settings".
3. You can change the setting of  Toner Save mode.

For Mac OS X Users:

1. Open the "Print" menu dialogue.
2. Select "Printer Features" and "Controls printer specific settings".
3. You can change the setting of  Toner Save mode.