We. can receive faxes but all outgoing say comm error. phone lines are fine. help

It might help to reduce the fax modem speed to 14.4. Some other people's fax machines may be very old models.

Hi Mechanic.

The problem could be with your phone service if you are on digital lines, you would have to install a digital to analog filter. If you are analog the comm errors are typical of a line with a lot of static. You can change two settings on the printer which should solve the issue until you install a filter.

The two settings which are under the fax set up menu/ all faxes\
Error correction mode (ECM) set it to off
Fax Speed set it to medium.

Good luck

Al
[email protected]

There is a big chance this is a line problem, contact your phone line company before trying to fix or replace your Fax modem on the MFP.

Good Luck

These errors mean that the communications have failed, and can mean that the receiver at the other end has terminated the call prematurely.
If the problem occurs with the same destination, then the receiver fax may be the problem.
If the error persists try disabling ECM

It could be line noise on the phone.., which allows phones to work ok, but causes problems with faxes. See this document from the brother website concerning comm.error:

http://welcome.solutions.brother.com/BSC/public/us/ca/en/faq/faq/000000/000100/000067/faq000167_000.html?reg=us&c=ca&lang=en&prod=fax2800_us&Cat=11

Would recommend having the phone company run a line check to make sure the phone line is clean of interference !

Maybe depends on poor phone connection from this sender, caused by bad line or a transmitt problems. In faxsettings All fax, change "error correction" to off and "V34" faxspeed to slow, this will help.

Call your cell phone from the fax machine.

Call some fax numbers on a regular phone and listen for fax tones.

Do you have a DSL phone line?

• The Rings to Answer feature might not be set to answer after the
appropriate number of rings for your office setup.
• If you have a voice mail service at the same phone number you use
for fax calls, you must receive faxes manually, not automatically. For
information on how to receive faxes manually, see receive a fax
manually from a phone on page 48.
• If you have a PC modem on the same phone line with your
HP Officejet, check to make sure that the modem’s software is not
set to receive faxes automatically. Modems with this auto fax
receive feature turned on will take over the phone line to receive all
incoming faxes, which will prevent the HP Officejet from receiving
fax calls.
• If you have an answering machine on the same phone line with
your HP Officejet, you might have one of the following problems:
– Your outgoing message might be too long or too loud to allow
the HP Officejet to detect fax tones, and the calling fax machine
might disconnect.
– Your answering machine might not have enough quiet time after
your outgoing message to allow the HP Officejet to detect fax
tones. This problem is more common with digital answering
machines.
The following actions might help solve these problems:
a. Disconnect the answering machine and then try receiving a fax.
If faxing is successful without it, the answering machine might
be causing the problem.
b. Reconnect the answering machine and re-record your outgoing
message. Make sure the message is as short as possible (no
more than 10 seconds long), and that you speak softly and
slowly when recording it. Try again to receive a fax.
• If you have a special ring pattern for your fax phone number (using
a distinctive ring service through your telephone company), make
sure that the Answer Ring Pattern feature on your HP Officejet is set
to match. For example, if the phone company has assigned your
fax number a double ring pattern, make sure Double Rings is
selected as the Answer Ring Pattern setting. For information on
changing this setting, see change the answer ring pattern
(distinctive ringing) on page 63.
Note that some ring patterns cannot be recognized by the
HP Officejet, such as those with alternating short and long ringing
patterns. If you are having problems with a ring pattern of this type,
ask your phone company to assign a non-alternating ring pattern.

http://h10032.www1.hp.com/ctg/Manual/c00095626.pdf

Check if you have the latest firmware for this multifunctional on www.hp.com, installing newer firmware fixed communication problem for us.