I have a brother mfc8440 and a brother 9840 both sharing a fax line. I would like one machine to receive, and the other to send. The receive machine (9840) works well, but the 8440 will not send. What happens is I get an error, and the fax actually prints on the 9840. If I turn off the 9840, the 8440 will send fine...unfortunately this is not an option.
I believe there is a setting that I can change that will solve this problem, but I can't seem to find it.
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The first thing that I would try multiple people to ask them to fax you.Sometimes the 2 machines don't "sync".This is a toll free fax test number that I always use to check my machines..1-888-473-2963.Just write the words "FAX TEST" in large letters on a blank sheet of paper..fax it to that number...leave the line open...you should get a fax back in about a minute.If you get a fax back...your machine is fine...let me know if this was helpful....thanks.
Your fax can share the line with your phone, but it needs to be set to answer or not, depending on your equipment and choices.You can download the manual from Brother here. The receive modes are explained on page 5-1. If you're often out when faxes or phone messages might come in, you probably need to plug an answering machine into the back of the fax (the EXT. jack) and put the fax in FAX / TAD mode. (TAD stands for Telephone Answering Device. Be sure the TAD is set to answer before the fax does. The fax will pass the phone call through to the TAD, and if it hears the beeping of another fax sending, it will cut off the TAD and take the call. See the manual for more info and other options.
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/MFC for this feature to work.ECM (Error Correction Mode) Detects errors during fax transmission and resends the page(s) that had an error. If you have Call Waiting, RingMaster, Voice Mail, an answering machine, alarm system or any other custom feature on a single phone line with your fax machine, it may create a problem sending or receiving fax data. For Example: Your Brother machine handles the Caller ID and Call Waiting/Caller ID subscriber services. However, if you subscribe to only Call Waiting or some other custom service and its signal comes through the line while your machine is sending or receiving a fax, the signal can temporarily interrupt or disrupt the fax data. Brother's ECM feature should help overcome this problem. This condition is related to the telephone system industry and is common to all devices that send and receive information on a single, shared line with custom features. If avoiding a slight interruption is crucial to your business, a separate line with no custom features is recommended.
Manual mode turns off all automatic answering functions unless you are using the Distinctive Ring feature or you are using an external answering machine on the same line as the Brother machine.
*Distinctive Ring is a function of your Brother machine that allows a person with one line to receive fax and voice calls through two different phone numbers on that one line. Brother uses the term "Distinctive Ring," but telephone companies market the service under a variety of names, such as Custom Ringing, Personalized Ring, Smart Ring, Ring Master, Ident-a-Ring, Ident-a-Call, Data Ident-A-Call, Teen Ring, SimpleBiz Fax & Alternate Number Ringing and BT Call Sign.
Setting the Receive Mode
Press the up or down arrow key to select Initial Setup.
Press the up or down arrow key to select Receive Mode.
Press the up or down arrow key to select Manual.
Receiving Faxes in Manual Mode
Lift the handset of a telephone that is on the same line as your Brother machine.
When you hear the sending machine's fax tones (short beeps that occur at regular intervals), do one of the following:
If the telephone you answered is near your Brother machine or connected to its EXT jack(socket), press Black(Mono) Start or Color(Colour) Start.
If the telephone you answered is not connected to or near your Brother machine, press *51 (*91 for New Zealand) on its dial pad.
Your Brother machine will produce receiving tones.
Replace the telephone handset. Your Brother machine will begin to receive the fax.
< Easy Receive (Fax Detect) >
The Easy Receive (Fax Detect) feature allows you to receive faxes in Manual Mode by simply lifting the handset of a telephone that is on the same line as the Brother machine. Your Brother machine will automatically generate fax receiving tones, at which point you can replace the telephone handset and wait for your fax to be received and printed.
Your Brother machine's Easy Receive (Fax Detect) feature is turned ON by default. To adjust your Brother machine's Easy Receive (Fax Detect) setting, please follow these steps:
Press the up or down arrow key to select Fax.
Press the up or down arrow key to select Setup Receive.
Press the up or down arrow key to select Easy Receive or Fax Detect.
Press the up or down arrow key to select On, Semi or Off.
*In some brother machines, Semi may not be in the options.
If you choose Semi, your Brother machine will only answer an incoming fax if you answer using its handset or by pressing the Hook, Hook/Hold, Hold, Speaker Phone or Tel/R key on its control panel.
Here are a couple of points to keep in mind:
If Easy Receive (Fax Detect) is ON, but your Brother machine doesn't automatically answer the incoming fax when you lift the extension telephone's handset, press *51 (*91 for New Zealand).
If you send faxes from a computer that is on the same telephone line as the Brother machine and the Brother machine intercepts the calls, turn Easy Receive (Fax Detect) OFF.
Please post your feedback and Vote if the problem resolved as per your satisfaction.
First thing to check is the condition of the phone line, if the machine has a handset make a phone call from the handset, is the line clear? Is there any static or Echos on the line?
Is the machine on a shared line with computers or an answering machine?
Call the Fax machine from a phone, is the line clear? did the machine generate its handshake burst? Did anything else try to answer the line?
Check the phone cable input, it should be going onto the LINE jack on the back of the machine.
Pick up the receiver and see if you hear a fax tone noise. If so then push the start button and hang up. Is this machine on a dedicated line or shared with the main phone number? Sometimes some people will pick up the receiver on their fax machine dial the fax number and wait for a tone before sending. If this is the case the machine can not recognize that is a ax. Make sure your machine is set for auto receive if it is on a dedicated line.