Canon imagePRESS C800 Series Troubleshooting Manual page 222

Chapter 1
3-3) Click "Password" to enter the password (4-12 digits).
Then, enter the password for confirmation.
3-4) Click "OK". The backup of TPM key is started.
3-5) Click "OK" on the Backup Completion screen and then remove the USB memory.
[Caution] In following cases, a message indicating the failure to backup and the cause of failure is displayed. Implement the appropriate measure.
- A USB memory is not connected.
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