You can set
up password encryption to protect confidential information stored
in the product. You can also back up the encryption key that is
stored in your product's Trusted Platform Module (TPM) chip to a
USB flash drive.
sure you have a USB flash drive with at least 1MB of storage space
to back up the encryption key.
If the TPM chip fails, you cannot replace
it or access any confidential information stored on your product.
Printer functions are still available, but the password encryption
feature cannot be used. Contact Epson for support.