Gestetner DSm725e Reference Manual page 82

Ensuring Information Security
C
Press [Administrator Tools].
D
Press [Extended Security].
E
Press [On] for "Encrypt Address Book".
3
F
Press [Change] for [Encryption Key].
G
Enter the encryption key, and then press [OK].
Enter the encryption key using up to 32 alphanumeric characters.
H
Press [Encrypt / Decrypt].
I
Press [Yes].
J
Press [Exit].
K
Press [OK].
L
Press the {User Tools/Counter} key.
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