Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Your Brother Intellifax cannot send. But can receive incoming faxes.
Please tell me two vital details, so that I can advise you better:
1. what phone line service do you have, analog/POTS/'landline', or digital/UVerse/Comcast/MagicJack/Vonage/VoIP etc. ?
2. what symptom or error message do you get when you try to send a fax ?
Thank you for your response.
So - if I understand you correctly - even when making a voice call via the Intellifax's handset - your call does not go through.
If you have not made this test yet, please do so. It's significant, if you cannot make a voice call go through, as to why a fax sending won't go through.
How long ago did the Comcast phone service get put in?
I fear it may be the problem, you see. Digital phone services such as Comcast's can produce problems with fax sending or receiving... in this case, obviously a problem with both sending AND calling out. Which is actually not a quality of digital phone system faxing problems. You should be able to make a voice call, outbound, even using the Intellifax's handset.
Something is wrong with your Comcast box, perhaps... or your Comcast service. Do other phones that work through it work? or is this Intellifax device the only one using the phone line through Comcast?
OK. Please do that test tomorrow or whenever convenient. Thanks, John.
(I regret that I am not able to offer Live Phone Call service at this time; However, your request is still open to other Experts in this category, and one of them may pick up on it at any time.)
I think the problem is that the Comcast phone service is a 'digital' phone service. That makes for problems with faxing... sometimes just sending, but not receiving. (I honestly have no figured out why it only works in one direction.)
Now, there are some things we can try to get your Intellifax sending as well as receiving. A change in settings (if your model has these settings to change) is the first and best thing to try. Would you like to get instructions as to how to change settings?
I have done a search through the manual for the Brother 4100e... and unfortunately it does not mention how to do either of the two things that can help a fax work better with a digital phone line:
- disable ECM
- set TX/RX Speed to Slow (or a lower value, in some models.)
ECM is mentioned as a feature of this model, but I have found no word on whether it can be disabled. Perhaps it cannot, I'm sorry to say.
Do you have any extra features on the line, such as call waiting, conferencing, etc. ?