Brother 750, 770 owner manual Fax Tones and Handshake, ECM Error Correction Mode

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C H A P T E R O N E

 

 

Fax Tones and Handshake

When someone is sending a fax, the fax machine sends fax calling tones (CNG tones)—soft, intermittent beeps at 4-second intervals. You’ll hear them when you dial and press Start , and they continue for about 40 seconds after dialing. During that time, the sending machine must begin the “handshake” with the receiving machine. Each time you use automatic procedures to send a fax, you are sending CNG tones over the phone line. You’ll soon learn to listen for these soft beeps each time you answer a phone on your fax line, so you know if you are receiving a fax message.

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 screen displays 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 screen continues to display “RECEIVE.” To cancel the receiving mode, press Stop .

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 40 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.

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Contents FAX 750 FAX If You Need to Call Customer Service Frequently Asked Questions FAQs For Customer ServiceBrother Numbers Brother fax-back systemOrdering Accessories Supplies DescriptionIii Compilation and Publication NoticeFor USA Only Limitations For Canada Only Table of Contents Viii TrademarksUsingThis Manual 1IntroductionAbout Fax Machines Finding InformationECM Error Correction Mode Fax Tones and HandshakeControl Panel Overview FAX 750 and FAXConnections Choosing a LocationLoad the Paper Acceptable PaperConnecting the Power Cord Connecting the Telephone LineConnections Special Line ConsiderationsTwo-Line Phone System Converting Telephone Wall OutletsTriplex Adapter Two Line Phone Two Line External TAD Custom Features on Your Phone Line Multi-Line Connections PBXConnecting an External Telephone Answering Device TAD SequenceConnecting an External Telephone ConnectionsOutgoing Message OGM Function Mode 12 3On-Screen ProgrammingUser-Friendly Programming Alternating Displays Function Selection TableFAX NO. & Start Copy Press Copy Setup Send Interrupt Setting Date and Time Setting Station IDGetting Started Details for Entering Text TELName DIALINGTONE? DIALINGPULSE?Press Key One time Two times Three times Four times Setting Beeper Volume Setting the Handset Volume Setting Volume AmplifyVOL AMPLIFYOFF? Setting the Speaker Volume Setting the Ring VolumeMemory Storage PERMANENT?Select Answer Mode Basic Receiving OperationsSetting Ring Delay Setting F/T Ring TimeFAX only FAX/TEL Tadanswer Mach Manual Ring TIME20 SECEasy Receive Printing a Reduced Incoming DocumentReduction Setting Paper Size PaperChange Reduction 1.YES 2.NO Recommended ReductionsFor FAX/TEL Mode Only Advanced Receiving OperationsOperation from External or Extension Telephone Changing Remote CodesPrinting a Fax in Memory For FAX 770 Only PollingDistinctive Ring Registering the Distinctive Ring Pattern Press or to select DISTINCTIVESET? and press SetCaller ID Viewing Caller ID ListCopy Functions Call Waiting Caller IDPrinting Caller ID List Multiple Copies Reducing and Enlarging CopiesSetup Send BeforeYou BeginManual Transmission Automatic TransmissionManual and Automatic Fax Redial Resolution Basic Sending OperationsContrast Overseas Mode Overseas ModeAdvanced Sending Operations Quick Scan Fax TransmissionDelayed FAX BroadcastingMemory 100% Enter FAX no Setting Up for Polling Transmit Canceling a Scheduled JobCancel JOB Insert DocumentMore Advanced Features Call Brother fax-back system Setup Auto Dial NumbersStoring Numbers for Easy Dialing Storing One Touch Dial NumbersCHAIN-9 1 201 555 Storing Speed Dial Numbers Changing One Touch and Speed Dial NumbersSPEED-DIAL? # Enter & SETSetting Up Groups for Broadcasting Setup Groupgo Enter & SETName Enter & SET 8Telephone Voice 43 Operation Making Voice CallsManual Dialing One Touch DialingSpeed Dialing HoldTone/Pulse For Canada Only Searching Telephone IndexFax Machine Settings and Activity To Print a ReportTransmission Verification Xmit Report Activity Report IntervalINTERVAL? 10Important 47 Information StandardTelephone and FCC NoticesIndustry Canada Compliance Statement For Canada Only A P T E R T E NP O R T a N T I N F O R M a T I O N Important Safety Instructions Do not use this product near waterP O R T a N T I N F O R M a T I O N Troubleshooting Error MessagesCheck Paper Troubleshooting a N D M a I N T E N a N C E Clean UP Scanner COMM.ERRORConnection Fail DisconnectedMachine Error Press Stop KEY Printer FaultScanner Error No RESPONSE/BUSYIf You Are Having Difficulty with Your Fax Machine Printing or Receiving FaxesPhone Line or Connections Sending Faxes Handling Incoming CallsTransmission Verification Report Prints Result NG Routine Maintenance Cleaning the ScannerCleaning the Print Head 60 12Multi-Function Link option MF Link13Specifications ResolutionIndex ALL DialD E TAD D E Setting Up Fax Storage Remote Fax OptionsProgramming a Fax Forwarding Number Programming Paging NumberTurning On Fax Storage FAX STORAGEOFF? Select & SETErase ALL FAX? 1.YES 2.NO Changing Remote Access Code Remote Retrieval Access Card Retrieving Fax Messages Visit us on the World Wide Web
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