About Printer and Scanner PS (PostScript) Packages:

Before you download this ... version, make sure that it's supported by your printer model, and only afterwards get the package, run ... >/
By installing this package, the printer can benefit from enhanced color and error handling, ... to that, you should perform a system and printer reboot to ensure that all changes take effect ... get the package, and apply it to your printer unit. Should you wish not to get this ... highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.