Follow the steps below to solve the problem:
 

1. Dial the "problem" fax number from a telephone and verify it answers with fax tones.
   • If the number answers with fax tones, go to Step 2.
   • If the number does not answer with fax tones, there may be a problem with the recipient's fax machine or fax line.  Contact the recipient and ask them to verify their fax number and fax machine's functionality.
2. Set the machine's Compatibility to Normal:
   1. Press Menu.
   2. Press the Up or Down arrow key to select Initial Setup.
   3. Press OK.
   4. Press the Up or Down arrow key to select Compatibility.
   5. Press OK.
   6. Press the Up or Down arrow key to select Normal.
   7. Press OK.
   8. Press Stop/Exit.
3. Send a fax to the "problem" number:
   • Sending a fax using the Automatic Document Feeder(ADF).
   • Sending a fax using the flat scanner glass.

   Sending a fax using the ADF:

   1. Press (Fax).
       
   2. Unfold the ADF Document Support (1).
      
      NOTE: Illustrations shown below are from a representative product and may differ from your Brother machine.
       
   3. Adjust the paper guides (1) to fit the width of your document.
       
   4. Place the document you want to send into the ADF face down, top edge first until you feel it touch the roller.
      • Insert the document underneath the paper guides (1).
        
      • After you put your document in the ADF, the Brother machine's display (hereinafter called LCD) should read ADF Ready.
   5. Do one of the following:
      • If the LCD displays ADF Ready, go to Step g.
      • If the LCD continues to display the date and time, go to Step f.
   6. Make sure the document is between 5.8 and 8.5 inches wide and 5.8 and 14 inches long.  If the document is fewer than 5.8 inches wide, the document sensors will not detect it.  You will need to use a wider sheet of paper.
      • If the LCD displays ADF Ready, go to Step g.
      • If the document meets the above-listed specifications and the LCD continues to display the date and time or a menu screen when you place a document into the ADF, please contact Brother Customer Service from "Contact Us."
   7. Dial the "problem" fax number.
      • You can manually dial the number or dial a Speed Dial number.
      • If you are using access numbers for calling cards or long-distance security codes, or if you must press 9 to access an outside line and a pause is required between the dialing of those numbers and the fax number, be sure to press Redial/Pause when needed.
      • Pressing Redial/Pause will insert a 3.5-second pause between numbers.
      • You can press Redial/Pause as many times as needed to increase the length of the pause.

      When manually sending a fax by pressing the Hook key to listen for a dial tone before dialing, make sure you wait until you hear the receiving machine's fax tones before you press Black Start or Color Start on the Brother machine.

   8. Do one of the following:
      • To send a black and white fax, press Black Start.
      • To send a color fax, press Color Start.
   9. Go to Step 4.
       

   Sending a fax using the flat scanner glass:

   • You cannot send multipage color faxes from the flat scanner glass.
   • You can send documents up to Letter or A4 size.
   • Since you can only scan one page at a time on the flat scanner glass, it is easier to send multipage faxes using the ADF.
   • The ADF must be empty when you are faxing from the flat scanner glass.

   1. Press (Fax).
       

   2. Lift the document cover.
      
      NOTE: Illustrations shown below are from a representative product and may differ from your Brother machine.
       
   3. Place the document face down in the upper-left corner of the flat scanner glass.
      
      Use the guide lines on the upper-left corner of the scanner glass to help you position the document.
       
   4. Close the document cover.
      
   5. Dial the fax number on the machine's dial pad.
      • If you are using access numbers for calling cards or long-distance security codes, or if you must press 9 to access an outside line and a pause is required between the dialing of those numbers and the fax number, be sure to press Redial/Pause when needed.
      • Pressing Redial/Pause will insert a 3.5-second pause between numbers.
      • You can press Redial/Pause as many times as needed to increase the length of the pause.

      When manually sending a fax by pressing Hook to listen for a dial tone before dialing, make sure you wait until you hear the receiving machine's fax tones before you press Black Start or Color Start on the Brother machine.

   6. Do one of the following:
      • To send a color fax, follow these steps:
        1. Press Color Start.
        2. Press 1 to select Color Fax.
           The machine will send the fax.
      • To send a black and white fax, follow these steps:
        1. Press Black Start.
           • The machine will scan the page.
           • The LCD will read Next page?
        2. Do one of the following:
           • To send a single-page fax, press 2 to select No or No (Dial).
           • The machine will send the fax.
             To send more than one page, go to Step iii.
        3. Press 1 to select Yes.
        4. Lift the document cover.
        5. Place the next page on the scanner glass.
        6. Close the document cover.
        7. Press OK.
           • The machine will scan the page.
           • To scan additional pages, go back to Step iii.
           • When you have scanned all the pages you want to send, press 2 to select No or No (Dial). The machine will send the fax.
        8. Go to Step 4.
4. Do one of the following:
   • If the fax is successful, the issue is resolved.
   • If the fax is not successful, there is likely a problem with the recipient's fax machine or fax line.  Contact the recipient and ask them to verify their fax number and fax machine's functionality.