The receiving fax responds with fax receiving tones—loud, chirping sounds. A receiving fax chirps for about 40 seconds over the phone line, and the LCD shows RECEIVE. If your fax machine is set to the FAX ONLY Mode, it will answer every call automatically with fax receiving tones. Even if the other party hangs up, your fax machine continues to send the “chirps” for about 40 seconds, and the LCD continues to display RECEIVE. To cancel the receiving mode, press Stop/Exit.

When your fax machine answers in FAX/TEL Mode, the fax machine listens for CNG tones and then responds with receiving tones.

The fax “handshake” is the time in which the sending machine’s CNG tones and the receiving machines “chirps” overlap. This must be for at least 2 to 4 seconds, so the machines can understand how each is sending and receiving the fax. The handshake cannot begin until the call is answered, and the CNG tones only last for about 60 seconds after the number is dialed. Therefore, it’s important for the receiving machine to answer the call in as few rings as possible.

When you have an external telephone answering device (TAD) on your fax line, your TAD will determine the number of rings before the call is answered. Pay special attention to the directions in the Installation chapter for connecting a TAD to your fax machine.

ECM (Error Correction Mode)

The Error Correction Mode (ECM) is a way for the fax machine to check the integrity of a fax transmission while it is in progress. ECM transmissions are possible only between machines that both have the ECM feature. If they do, you may send and receive fax messages that are continuously checked for their integrity.

Sufficient memory must be available in your fax machine for this feature to work.

Test Sheet Procedure and Product Registration (For USA Only)

After programming your Station ID, please fill out the TEST SHEET included with your fax machine, and then fax it to Brother’s Automated Fax Response System as your first transmission. This will verify that your fax machine is properly installed. To get a response, you must have set up your Station ID. (See Setting Station ID, page 4- 1 in the Owner’s Manual.)

When your TEST SHEET is received, a Confirmation Sheet and Product Registration form will be sent back to your machine. Please fill out the form and return it to complete your registration.

USA: 1-908-685-9283 (fax)

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Brother FAX-775 owner manual ECM Error Correction Mode, Test Sheet Procedure and Product Registration For USA Only