Cause: If your printer prints garbled text, it is almost always a sign of a bad or corrupt driver. Even if you installed the correct driver, it may have become corrupt over time. In this case, you need to reinstall the driver for the printer.
To update the printer driver, follow these steps:
1. Download a new copy of the printer driver from the manufacturer's Web site. You can also use the installation CD; but if you have Internet access, always check the manufacturer's Web site first because you will get the latest driver and information from the site.
2. Click Start--> Control Panel (Classic view)--> Printers and Faxes.
3. Right-click the desired printer icon--> click Properties.
4. Click the Advanced tab--> then click the New Driver button.
5. The Add Printer Driver Wizard appears--> Click Next.
6. In the Printer Driver Selection screen, choose the manufacturer and model of your printer--> or click the Have Disk button to install the driver from the floppy or CD-ROM drive (or from the hard drive, if you downloaded the driver)--> Click Next.
7. Click Finish.
Prevention: Remember, any time you hav,e garbled text or the printer just does not work well with the computer (such as in the case of communication errors), the driver is commonly the problem.