Dell 2150cn/cdn Color Laser Printer - Manual (Page 284)

282 Understanding the Tool Box Menus
1 Click Start  All Programs  Dell Printers  Dell 2150 Color Printer 
Tool Box.
NOTE: The Select Printer window appears in this step when multiple
printer drivers are installed on your computer. In this case, click the name of
this printer listed in Printer Names, and then click OK.
The Tool Box opens.
2 Ensure that the Printer Maintenance tab is open.
3 Select Reset Defaults from the list at the left side of the page.
The Reset Defaults page appears.
4 Click System Section button.
The printer restarts automatically to apply the settings.