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5-38 OPERATION GUIDE
Encrypted Communication
This function encrypts documents before transmission, protecting
document contents from viewing by unauthorized third parties, even if
transmission is intercepted. After reception, documents are decrypted by
the recipient and printed. This is a very effective way to fax documents for
which confidentiality is essential.
NOTE: Encrypted communications require the other fax machine to have
compatible encryption functions.
Successful encryption and decryption requires that the sender and
recipient use the same 16-character encryption key. If the encryption keys
of the parties do not match, encrypted communication is not possible. The
sender and recipient must determine encryption conditions beforehand
and register the encryption key under a two-digit encryption key ID.
Sender and Recipient Settings
Use matching numbers for the settings above indicated by the same letters
in parenthesis. For example, the same number must be used by the sender
and recipient for the encryption key.
Encryption Keys and Encryption Key IDs
Setting Sender Recipient
Reference
Page
Encryption key ID (A) 2-digit
ID
(B) 2-digit
ID
page 5-39
Encryption key (C) 16-
digit key
(C) 16-
digit key
page 5-39
Encryption key ID assigned
to a one-touch dial key or the
Address Book
(A) 2-digit
key
page 3-25
Encryption key ID in the
encrypted reception setting
(B) 2-digit
key
page 5-41
Scanning
Sender Recipient
Printing
DecryptionEncryption
Encrypted
Communication