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Faxing Troubleshooting

How to troubleshoot various issues with faxing

Unable to Send or Receive Faxes

1) Confirm the UniVoxx ATA is online.
 
2) Verify cabling between the fax machine and the UniVoxx ATA.
 
3) Restart the UniVoxx ATA connected to the fax machine. This is located either right next to the fax machine or it's located in a network closet.
 
ATA pic
 

4) Restart the fax machine.

5) If the fax machine is still unable to send and/or receive faxes, gather any error pages that have printed off and contact us at support@univoxx.com.


Unable to Receive Faxes, But Able to Send Faxes

1) Confirm the UniVoxx ATA is online.

2) Verify cabling between the fax machine and the UniVoxx ATA.
 
3) Restart the UniVoxx ATA connected to the fax machine. This is located either right next to the fax machine or it's located in a network closet.
 

4) Confirm that the phone number used for the fax machine is still with UniVoxx and that it has not ported away to another carrier. UniVoxx can assist with this step.

5) Try calling the fax phone number and seeing if you hear a fax tone or receive some other type of response/error message that might assist with troubleshooting with UniVoxx.

6) If the fax machine is still unable to send and/or receive faxes, gather any error pages that have printed off and contact us at support@univoxx.com.


Unable to Send Faxes, But Able to Receive Faxes

- Review error codes within the transmission report and research accordingly.

- Ensure the fax machine does not have Fax to Server enabled.

To disable Fax to Server on a Brother MFC-9970CDW:

1. Press Menu.

2. Select LAN or Network and Fax to Server.

3. Select Off and then press OK.

4. Press Stop/Exit.


Faxing Takes Multiple Attempts

1) Confirm the UniVoxx ATA is online.

2) Verify cabling between the fax machine and the UniVoxx ATA.
 
3) Restart the UniVoxx ATA connected to the fax machine. This is located either right next to the fax machine or it's located in a network closet.
 
4) Restart the fax machine.
 
5) On the fax machine, ensure the BAUD (Transmission Rate) is set to 9600 or 'Basic' on some models of fax machines. See below for directions on some models.
 
6) Disable ECM (Error Correction Mode) on the fax machine.

 


 

Adjusting the Transmission Rates and ECM (Error Correction Mode) Settings

For instructions on how to adjust the BAUD (transmission) rates and ECM settings (Error Correction Mode) on a specific fax machine, please select the corresponding model below.

Brother FAX2840

Other Brother Fax Models

HP MFP E52645 Series

HP 2000, 4100, 5000, 6000 & 6100 Model OfficeJet Series

HP 3180/3100 Series

HP M2727 MFP Series

HP4110 Series

HP4219 Series

HP Officejet 9100 All-in-One Series

HP 6100xi, HP7410xi and HP PSC2210 Series

HP 7000 Model OfficeJet Series

HP Officejet 7300/7400 Series

Brother MFC 420CN Series

Sharp Fax Machines

Canon C855

Canon imageCLASS D780


To Set the Transmission (BAUD) Rate for the Brother FAX2840

  • Press the Menu or Menu/Set key. Then FaxMiscellaneous and Compatibility.
  • Press the Up or Down key until you can select Basic. Basic reduces the modem speed to 9600 bps.
  • Press OK or Menu/Set or Set key.
  • Press Stop/Exit.

To Set the Transmission (BAUD) Rate for Other Brother Fax Models

  • Press the Menu/Set key the Press 2, then 0, then 1.
  • Use the Up or Down Arrow key and then select Basic.
  • Press the Menu/Set key and then Press the Stop or Exit Key.

To Set the Transmission (BAUD) Rate for the HP 3180/3100 Series

  • Press the Fax Menu Button.
  • Press Fax Menu repeatedly to scroll through the options in the Fax Menu.
  • Press Setup the select Advanced Fax Setup and then press Fax Speed.
  • Using the arrow keys select the option Slow (9600) , and then press OK.

To Set the Transmission (BAUD) Rate for the HP M2727 MFP Series

  • Press Setup.
  • Press and Hold the Right Arrow then Press Cancel.
  • Press Setup again until Developers Menu displays, then press OK.
  • Select R/W Parameters by using the Right Arrow, then press OK.
  • Enter 153 on the keypad (you should see T30XMIT), then press Enter.
  • Using the keypad Press 16 then Press Enter.

To Set the Transmission (BAUD) Rate for the HP4110

  • Press the * and # keys at the same time.
  • Press and Hold the Right Arrow then Press Cancel.
  • Press 1, then 2, then 3.  (Release each key before pressing the next.)
  • Service should now display, press the right arrow button until R/W parameters appears.  Then press Enter.
  • You should see parameter 0.  Press 2, then Enter.
  • Next press Cancel repeatedly until you exit the service menu.

To Set the Transmission (BAUD) Rate for the HP4219

  • Navigate to the Advanced Menu, First Go to Setup, Press 4 for Advanced Fax Setup
  • Then Select Slow Setting
  • Save Settings

To Set the Transmission (BAUD) Rate for the HP Officejet 9100 All-in-One Series

  • Press and hold the * key for 3 to 5 seconds until the display screen reads Test -001+
  • Enter in 620 on the key board and press the Check Mark so the screen will read Cfg param id:.
  • Enter the parameter 159 for the Receiving Baud Rate on the key board then press the Check Mark so that Cfg param val: 26 displays.
  • The screen will read Cfg param val: 26.
  • Enter in the value 6 which equals 9600 (V.29) and then press the Check Mark.
  • The screen will read Test -001+
  • Press the Reset button until you get back to Ready*.
  • Repeat the settings entering parameter 153 for the Transmitting Fax baud rate.

To Set the Transmission (BAUD) Rate for the HP 6100xi, HP7410xi and HP PSC2210

  • Press the * and # keys at the same time.
  • Press 1, then 2, then 3. (Release each key before pressing the next.)
  • The display should show Service, press the right arrow button once and System Configuration should display.  Press Enter.
  • Press the right arrow button until R/W parameters appears.  Then press Enter.
  • You should see parameter 0. Press 153, then Enter.  (Parameter 153 is for sending.  The parameter for receiving is 159.)
  • Press 2, then Enter.
  • Next press Cancel repeatedly until you see the date and time display.

Brother MFC 420CN

This multifunction Brother machine has a normal Fax BAUD rate of 14400.  Use the following steps to set the machine to a basic setting which will both lower the BAUD rate to 9600 and disable ECM. 

  • Press the Menu or Menu/Set key, then  Fax, Miscellaneous, and Compatibility.
  • Use the Up or Down arrows to select Basic.
  • Press OK or Menu/Set or the Set key.
  • Press Stop/Exit.

Sharp Fax Machines

The following Sharp Fax Machines are set to 9600 Baud rate and will automatically fail over to a lower Baud rate depending on what other machine's capabilities are.

UX 510
UX 460
UX P100
UX P115
UX P200


Note: These Sharp fax models do not have an ECM setting.  As they are already set to 9600bps they should work.  Remember to set the resolution to Standard and make sure that your connection is set to G711, if you are experiencing difficulties with any of these Sharp Fax models.

Lowering the Baud Rate and Disabling ECM on a Canon C855

  • Press Function.
  • Press Data Registration.
  • Hit the Up or Down Arrow until Fax Settings appears.  Press Set.
  • Hit the Up or Down Arrow to navigate to the Sub Menus.
  • First Choose TX Settings.  (This is for sending faxes.)
  • Select TX Start Speed.  Choose 9600bps
  • Select ECM TX.  Then OFF.  This will turn off ECM while sending a fax.
  • Next select RX settings. (This is for receiving faxes.)
  • Select RX Start Speed.  Choose 9600bps.
  • Select ECM RX.  Then OFF.  (This will turn off ECM for receiving a fax.)
  • Press Stop to exit.

Lowering the Baud Rate and Disabling ECM on a Canon imageCLASS D780

  • Under User Settings navigate to TX Settings sets the transmission functions of the fax.  ECM TX turn to OFF.   
  • Under User Settings navigate to RX Settings sets the transmission functions of the fax.  ECM TX turn to OFF.
  • Under User Settings navigate to Tel Line Settings  then TX Start Speed set to 9600bps.
  • Under User Settings navigate to Tel Line Settings then RX Start Speed set to 9600bps.

Disable ECM For Most HP 7000 Model OfficeJet Series

  • Press Setup
  • Press the down arrow until you get to Advanced Fax Setup. 
  • Then hit OK.
  • Press the down arrow until Error Correction Mode displays. 
  • Then hit OK.
  • Press the right arrow until OFF displays.  Then hit OK.

 

Disable ECM For Most HP 2000, 4100, 5000, 6000 & 6100 Model OfficeJet Series

  • From the Front Panel Press Menu.
  • Hit the Right Arrow until you get Advanced Fax Setup.  Then hit Enter.
  • Hit the Right Arrow until you get Error Correction Mode.  Then hit Enter.
  • Hit the Right Arrow for Error Correction Mode Off.  Hit Enter.

 

Disable ECM for HP Officejet 7300/7400 Series

  • Press Setup.
  • Press 5, and then press 6.  (This will display the Advanced Fax Setup Menu and then selects Error Correction Mode.)
  • Press the Down Arrow to enable the Off (or ON) Option.
  • Press OK.

Disable ECM for HP 3180/3100 Series

  • Press the Fax Menu Button.
  • Press Fax Menu repeatedly to scroll through the options in the Fax Menu.
  • Press Setup the select Advanced Fax Setup and then select Error Correction Mode.
  • Press to select Off.  Press OK.

 

HP MFP E52645 Series

  • From the Home screen on the printer control panel, navigate to the Settings application, and then select
    the Settings icon.
  • Open the following menus:
    ● Fax
    ● Fax Send Settings
    ● Fax Dialing Settings
  • Configure the Fax Send Speed to Slow (v.29-9.6k)