The following message is shown on the panel, and doesn't disappear even after a power OFF/ON. "The TPM (security chip) is faulty, therefore the password encryption feature is unavailable. "

Step	Confirmation points and methods	Page	YES	NO
1	Check the connection state of the TPM (CH35 SUB T) Board Check the connection state of the TPM (CH35 SUB T) Board, and reconnect if abnormal. Does the product recover from the failure?	TPM (CH35 SUB T) Board	End	Go to step 2
2	Replace TPM (CH35 SUB T) Board Does the product recover from the failure?	TPM (CH35 SUB T) Board	End	Go to step 3
3	Replace the Printer Main Circuit Board. Does the product recover from the failure?	Printer Main Circuit Board	End	Escalate to person in charge

Step

Confirmation points and methods

Page

YES

Check the connection state of the TPM (CH35 SUB T) Board

Check the connection state of the TPM (CH35 SUB T) Board, and reconnect if abnormal.

Does the product recover from the failure?

End

Go to step 2

Replace TPM (CH35 SUB T) Board

Does the product recover from the failure?

End

Go to step 3

Replace the Printer Main Circuit Board.

Does the product recover from the failure?

End

Escalate to person in charge

# The following message is shown on the panel, and doesn't disappear even after a power OFF/ON. "The TPM (security chip) is faulty, therefore the password encryption feature is unavailable. "