Can I reformat the internal hard drive and reinstall the operating system if my product starts working improperly due to file corruption?

• No. There is no procedure available for reinstalling the operating system on your P-4000. Do not format the hard drive as this will delete critical system files and cause your P-4000 to become inoperable. This type of operational failure is not covered by the product's warranty. If your P-4000 stops working properly, please contact Epson.