Samsung ML-4512ND-TAA 用户指南

If the printer driver does not work properly, follow the steps below to 
reinstall the driver.

15 

Make sure that the machine is connected to your computer 
and powered on.

From the Start menu, select Programs or All Programs > 
Samsung Printers > your printer driver name > Uninstall.

Follow the instructions in the installation window.

Insert the software CD into your CD-ROM drive and try 
installing the driver again (see "Installing the driver locally" on 
page 22).