CAUSE: The V.34 protocol is set to ON.

SOLUTION: To set the protocol to OFF:
1. Press the Fax/Scan button.
2. Touch Communication Settings.
3. Select Line Settings.
4. Highlight the V.34 protocol, press OK and exit.
To store the settings as default, please perform the following:
1. Press Utility/Counter button.
2. Select User Settings.
3. Touch Scan/Fax Settings.
4. Touch Current Setting, press OK and exit.