Any way to manually LOWER the Fax Connection Baud Rate?
I am having troubles sending a fax to a certain # .. when it connects to the external fax it attempts to send Page 1 but then hangs up....I am figuring i need to lower the attempted fax baud rate from its possible 14.4Kbps to something like 9600 baud....this will likely solve my problem...
Does anyone know how to do this manualyl for this printer?
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Re: Any way to manually LOWER the Fax Connection Baud...
Newer fax technology adjusts transmission speed automatcally, so no adjustment is necesary. therefore, there is no menu option to change it. Your problem resides either on your phone line or the one you are trying to connect to. Call the other people and ask them if thei are receiving without problem. If you are able to transmit elsewhere and the other party is receiving from everywhere, try turning off the ECM option on your unit.
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Press the Menu or
Menu/Set key. Then
Miscellaneous 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.
Note these instructions should work for the
following models: Fax-1835C, Fax-1840C, Fax-1940CN, Fax-2440C,
Fax-2820, Fax-2825, Fax-2920, MFC-210C, MFC-215C, MFC-240C, MFC-3240C,
MFC-3340c, and most other MFC models.
The baud rate is automatically set by the machine when it connects to the remote machine. The machines start at the highest speed and drop down until both machines can send/receive without any errors then they send the pages. You can not manually set the speed.
Just to set your expectation, MagicJack phone service may work but Lexmark does not recommend the printer to be connected to a digital phone signal (e.g. MagicJack, Vonage, etc.) since there are lots of jitter and packet loss in the transmission signal resulting to fax failures. The Lexmark fax machine will have its optimum performance when connected to an analog signal(regular telephone line). But here's how to configure the printer's baud rate. From the Control Panel, press Settings(wrench icon)> Fax Setup, hit Ok > Dialing and Sending, hit Ok > Max Send Speed, hit Ok > set down the speed to 9600 bps. Hope this helps. If you need more assistance, leave a comment and I'll get back to it. Thanks.
older fax machines used a 9600bps baud rate, meaning a transfer rate of 9600 bits per second. a Bit being an 7th/8th of a byte. The newer machines can transfer at 14400bps, which older machines can not read, as its too fast. thats why they asking the BAUD rate.
Because you are using a VOIP service it can from time to time lose connection briefly. The slower the speed the less data can be loss do to network congestion. It also gives the error correcting function of the receiving fax a better chance of filling in any lost data.
9600 is a good choice becasue the industry minimum is 9600. This means you will be able to communicate pretty much any fax thats is still tickin today. Raising the speed will get you a faster transfer but will also increase the chance that you are sending data at a faster rate than the recieving fax can send.
2. How to change the baud rate....
Press Menu/Set, 2, 0, 1.
Press ▲ or ▼ to select Basic or
Normal (or High*).
* High is available for FAX-2910, FAX-2920
and MFC-7225 only.
Basic reduces the modem speed to 9600
bps. Unless interference is a recurring
problem on your phone line, you may
prefer to use it only when needed.
Normal sets the modem speed at
High sets the modem speed at
Wow. Digital lines are difficult to fax over. Most are still set to use analogue lines.
Those are also very odd changes. Most fax machines no longer even have a setting as low as 9600 baud.
Your fax may not have the ECM mode as changable, may just be built in, but that is not a function you normally would want to turn off. ECM is Error Correction Mode.
This honestly just sounds like a disclaimer to excuse their system's poor fax service.
# Lower the fax transmission speed to 14400 or even 9600 bps, as some older fax machines are not capable of receiving a fax at a high speed. To do so:
1. Press the Fax button, then press Options untill it gets to ADVANCED FAX. 2. Press Select. 3. Press Options untill it getsl MAX SEND SPEED appears on the LCD display. 4. Change it to 9600 BPS using the - (left arrow) button. 5. Press Select.
# Turn off ECM (Error Correction Mode) by pressing the following keys on the operator panel:
1. Press the Fax button, then press Option untill it gets to ADVANCED FAX. 2. Press Select. 3. Press Options until ERROR CORRECTION appears on the LCD display. 4. Change the setting from On to Off using the + (right arrow) button. 5. Press Select. Note: Turning off this option makes it possible to receive a fax when the receiver fax machine does not support certain error correction modes.