Question about Brother IntelliFAX 4100 Laser Fax

4 Answers

Intellifax 4100 won't receive faxes

The fax was unplugged for the weekend while our office was painted. Since plugging everything back in, we can't receive faxes. We can copy, send faxes, and print from my computer, but we can't receive faxes. There are no error codes.
Thanks for any help you can give.

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  • 2 more comments 
  • makemelaugh Feb 07, 2008

    Thank you! The telephone line from the fax was plugged into the wrong phone jack.

  • rkennard Feb 07, 2008

    I have a 1270 intelfax and I can send out faxes but can not get any.

  • bhagyaraj Feb 07, 2008

    having the same isue

  • shemoree May 22, 2008

    We can send fax, and copy, we can not receive faxes. We purchased new drum installed it, tried to plug main phone line in line and in ext., did not work. Should the phone on the fax be plugged into phone or ext.?



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Make sure the green light that says "FAX" is lit by pressing the "Mode" button in the upper right corner of the unit

Posted on Jun 26, 2008

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We had a similar problem which was resolved by resetting the mode from "TAD" to "FAX/TEL"

Posted on Jan 06, 2012


I have the same problem, I did everything to resolve it, change cord, check the line, even checked the line with another fax..No it wont work! So for now replaced it with another fax and a looking for warranty papers. I feel electric surge must have damaged something inside the electronic section for receiving fax.

Posted on Apr 18, 2008

  • sandm777876 Mar 11, 2011

    I am guessing the same thing happened to mine and mine was plugged into a battery backup/surge protector UPC unit. Unbeliveable. It sends faxes, answering machine works, makes copies, but cannot receive faxes. Hope someone can find an easy answer.


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  • 106 Answers

Probably you not properly install a line cord,try to check.check it and this is 100%.if you still have problem try to conect the telephone on telephone line cord aand check the line is ok.

Posted on Feb 07, 2008

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3 Answers

What does communication error 20 06 mean on my brother intellifax 4750e? We have been having problems faxing out and customers have called with trouble faxing in. Yet, we have received faxes prior to them...

CRC error in answerback. It means the error correction digits didn't match the data that was sent. I've seen a few cases where this was bad phone line conditions - once I could see the phone lines scraping against the gutters in the storm outside the window - but usually it's a flaky Main Board in the fax.
Unplugging all the cables on the board and plugging them back in might clean a bad connection, but we're seldom that lucky.

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Iunplugged the machine for a minute then plugged it back in. Unfortunately, whatever faxes were waiting to be printed were gone and so was the activity log. But it works now.

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unplug, hold down the "stop/clear" key, and while holding button down, plug in fax and hold button for 5 secs. release button and you should see the normal date/time screen. try receiving now.


Mar 31, 2009 | Brother IntelliFAX 4100 Laser Fax

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We can send faxes, but have not been able to receive any faxes. This happened after we disconnected the fax because the memory was full.

try unplugging and hold down your "stop/exit" key while plugging back in. continue holding button for 5 seconds. once you see the time/date screen, have someone try to fax you and see if that takes care of it. of course, make sure the receive mode is set to "fax only" if you have a dedicated line. if that doesn't do it, write back.

good luck,

Mar 09, 2009 | Brother IntelliFAX 4100 Laser Fax

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Have you tried a new toner cartridge?

Oct 27, 2008 | Brother IntelliFAX 4100 Laser Fax

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Did you try unplugging the power cord?

Sep 10, 2008 | Brother IntelliFAX 4100 Laser Fax

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Set your fax machine for AUTO RECEIVE. Unplug power cord and plug back in.

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don't forget to try other fax-paper... your's might have already expired.... if this doesn't work... the printer's heater might need changing.

goodluck... hope this helps.

Feb 26, 2008 | Brother IntelliFAX 4100 Laser Fax

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