Brother T74, T76 About Fax Machines, Fax Tones and Handshake, ECM Error Correction Mode

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About Fax Machines

If you’re a first-time fax machine user, fax operation might seem a little mysterious. You’ll soon get used to the unusual fax tones on your phone line, and be able to send and receive faxes easily.

Fax Tones and Handshake

When someone is sending a fax, the fax machine sends fax calling tones, (CNG tones)—soft, beeps at 4-second intervals. You’ll hear them when you dial and press Start, and they continue for about 40 seconds after dialling. 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 can 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 is in FAX/TEL (F/T) mode, it answers with a short beep. After this beep, the fax machine listens for CNG tones, and, if heard, it will respond with receiving tones.

The fax “handshake” is the time in which the sending machine’s CNG tones and the receiving machine’s “chirps” overlap. This must be for at least 2 to 4 seconds, so the fax 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 dialled. 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 machine for this feature to work.

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Contents FAX-T74 FAX-T76 Symbols Used In This Manual Using This ManualFinding Information Function Mode User-Friendly ProgrammingAlternating Displays Copy Press CopyApproval Information Table of Contents Troubleshooting and Maintenance SpecificationsPolling Remote Fax Options FAX-T74Preparation and Simple Use Guide Simple steps to prepare and use the machineRemove Ribbon Protection Sheet Acceptable PaperEnter Yearxx Enter MonthxxEnter Dayxx Enter TimexxxxFAX only FAX/TELManual Tadanswer MachAdvice for Preparation and Simple Use Guide Receiving Messages while outgoing Only for FAX-T76Memory Storage This fax must be earthed using a 3-pin plugSee Dialling a Number on When you enter your name, see Entering Text on See Set station ID, in Preparation and Simple Use Guide onMaking a Copy If you are installing the machine to work with a Pabx Multi-Line Connections PABXsExtension Master Socket Connections Outgoing Message OGM of External TADSequence of External TAD Reception ExternalExtension TelephoneTelephoneControl Panel Overview Resolution Left Arrow Right Arrow VolumeStop ModeFAX-T76 Speaker PhonePlay/Record EraseMIC Microphone Setup Custom SettingsVolume Settings Pabx and TransferSetup Quick Dial Numbers for Easy Dialling Setting the Clock ChangeSetting Pabx Storing One Touch Dial NumbersYou can use the chart of Entering Text on Storing Speed Dial NumbersSPEED-DIAL? # Enter & SETChanging One Touch and Speed Dial Numbers Change 2.QUITScanning Adjustment Sending a FaxSending Operation ContrastDialling a Number Automatic TransmissionOne Touch Dialling Speed DiallingRedial Redial/Pause Press Redial/PauseAnswer Mode Settings Select Answer ModeAnswer Mode Receiving a FaxSetting the Ring Delay Setting the F/T Ring TimeTo select or change your Answer Mode FAX only FAX/TEL Tadanswer Mach ManualChapter Receiving a Fax Fax DetectPrinting a Reduced Incoming Document ReductionIf the Memory Reception switch is on at this time… If the Memory Reception switch is OFF at this time…Reception into Memory Printing a Fax from Memory Only for FAX-T74Copy Functions Making CopiesMaking a Single Copy ELG/RDC100% Telephone Making a CallOn Hook Dialling PauseFAX/TEL Mode Answering a CallAnswering Calls with the Speakerphone Only for FAX-T76 MuteSetting Reports Printing ReportsTypes of Reports Transmission ReportJournal Period Advanced Sending Advanced OperationsElectronic Cover Cover Page for Next Fax OnlyUsing a Printed Cover Always Send CoverOverseas Mode Composing Your Own CommentsMemory Transmission Call ReservationBroadcasting Delayed Transmission TimerPrint Sample Call Back Message Setting Number Groups for Broadcasting Next-Fax ReservationMenu/Set. See Entering Text on Be marked in the column of GROUP. See Printing Reports onCancelling a Scheduled Job Interrupting Timer and Polled Transmit JobsMultiple Resolution Transmission Displays no JOB WaitingFor F/T Fax/Tel Mode Only Advanced ReceivingOperation from an External or Extension Telephone Remote Call TransferTelephone Services Changing Remote CodesCaller ID Caller IDentification To change Remote CodesSet the Caller ID to on Advantages of Caller IDHow Does the Caller ID Work? To Activate Certain Network Services When Using Call Reply Selecting a Caller ID from the Memory for Call ReplyDialing TelephoneSetting the machine to work with BT Call Sign BT Call Sign For U.K. OnlyCall Reply to DDI numbers via Caller ID Clearing the Caller ID Stored in Memory Only for FAX-T76Setup for Polling Receive Setup for Polling Receive with Secure CodePolling Polling ReceiveSetup Delayed Polling Receive Polled Transmit Polled Transmit Jobs onSetup for Polling Transmit with Secure Code Pollingstandard Select & SETSetting Fax Storage Remote Fax Options FAX-T74Fax Forwarding Remote RetrievalLong beep-Fax messages Changing the Remote Access CodeNo long beep-no messages Remote Commands Change Answer ModeRetrieve FAX Check the receiving statusRetrieving the Memory Status List Retrieving Fax MessagesChanging the Fax Forwarding Number # #Message Manager Mode Flexible Memory Settings Message StoreSetting Up Message Manager Message Manager’s Outgoing Message TAD Message onSetting the Message Store Recording the Message Manager’s Outgoing MessageListening the Outgoing Message OGM Erasing the Outgoing Message OGMActivating Message Manager Mode Message IndicatorWhat Happens When the Memory Is Full Playing Voice MessagesBackup Printing Option Printing a Fax MessageErasing Messages To erase voice messages individuallySetting the Maximum Time for Incoming Messages Setting the Toll SaverRing Delay on ICM Recording MonitorRecording the Paging Outgoing Message OGM Fax Forwarding/PagingProgramming the Paging Number Using the Remote Access Code Remote Control Commands FAX FWD no See Changing the Fax ForwardingOr stored fax messages. See Retrieving the Memory Status List on page 64 . Also see Retrieving Fax Messages onDocument or Voice messages. If yes, you will hear one long Changing the Fax Forwarding Number Error Messages Troubleshooting and MaintenanceStart Clearing Jams Document JamPaper Jam Top CoverChapter Change TONE/PULSE setting See Setting the Dialling Mode Difficulty with OperationSending Faxes Tone/Pulse onRegular Maintenance Cleaning the ScannerHandling Incoming Calls White Tape Glass StripChanging the Ribbon Cleaning the Print HeadPrint Head Blue Gear Used Ribbon White Gear Cartridge White Gear New Ribbon White Spool Chapter Important Safety Instructions Important InformationChapter Specifications SpecificationsFunction Description Factory Set Chapter Function Selection TablePBX Cancel JOB Setup TAD FAX-T76 Only Remote FAX OPT FAX-T74 OnlySpecial characters and symbols Entering TextInserting spaces Making correctionsAbout Fax Machines ECM Error Correction ModeFax Tones and Handshake Glossary PhonePage Appendix Index 17, 18 TAD Message Change Remote Access Code Accesssory ListUsing Remote Access Code Remote Commands Manufacturer Authorised Representative Products descriptionType Model NameUK/IRE/GNE
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