Restoring the Password Encryption Key (WF-C879R)

If the TPM chip fails, you can restore the encryption key from its backup stored on your USB flash drive.
  1. If you see a message on the control panel that the TPM has been replaced when you turn on the product, select Restore from Backup. Enter the administrator password, if necessary.
  2. Insert your USB flash drive containing the stored encryption key into the external USB port on the front of the product.
  3. Select Restore from Backup. The stored encryption key is restored to the TPM chip.
  4. When the completion message appears, select OK. The product restarts.
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