HP Officejet J4580 All-in-One - all of a sudden the fax is not working. For incoming faxes, the phone just rings. For outgoing, it says fax not answered when the other person says their fax is fine and never received your fax.

Check your incoming line and settings or try to reinstall the drivers. Also, check the user manual for HP Officejet Pro L7780

Install software
Make sure all cables plugged: phone cable, USB cable to computer

Send fax from computer:
- print your document to printer HP .... FAX

Send "traditional" fax:
- put your document into scanner input
- type phone number on HP Officejet keyboard
- push button "Send"

If your HP Officejet if connected to phone line, it reseiving faxes automatically.

Hope this helps

The steps are simple

Connect the 2 wire phone cord at back of printer in EXT 1 ( this is for incoming and outgoing for Fax )

Press the setup button printer
Scroll to Fax Settings
Set the Rings to Answer ( +2 from your Voice mail rings, if someone reaches your voice mail on 4 rings, set 6 Rings to Answer )
On the printer front panel is a Button Auto Answer - turn it ON

You are ready to send/recieve Faxes

For more details about Fax features you can download the manual of this printer from this link
http://h10032.www1.hp.com/ctg/Manual/c00461378.pdf

The answer mode determines whether the HP Fax answers incoming calls or not.

Different answer modes are :

* Fax

The HP Fax will automatically answer all incoming calls using the Rings to Answer setting. This is the default setting.

* FaxTel (unit with handset model only)

The HP Fax automatically answers all incoming calls using the Rings to Answer setting. If the call is a fax call, the HP Fax will receive the fax. If the call is a voice call, the HP Fax will create a special ring to indicate it is a voice call. The incoming voice call will need to be answered using the attached handset.

NOTE: If the HP Fax determines the call is a voice call, only the HP Fax will ring with the special ring tone. The other phones on the same phone line will not ring at all. You will not be able to pick up the voice call using the other phones.

* Tel

The HP Fax will not automatically answer calls. Faxes will need to be received manually.

* AnswerMachine

The HP Fax will monitor the line when an incoming call is answered by a person or by the answering machine. If the HP Fax detects fax tones on the line, it will receive the fax.

Hello sir; would you take one phone hook up with this phone jack,if there have dial tone,that's means fax modern defective, if no dial tone that's means this phone jack is not active.

Since you can send faxes, it's not the phone line or cord. It's most likely that you have the "distinctive ring" option set to something other than "all rings", check that first.

turn off answering mech. count # of rings before fax answers add onemore ring to answering mech. before it answers.

The fax machine needs to hear a dial tone first to send a fax. If you have no fax number, what working phone number are you using?

Here is a link to the user guide.. This should provide info on how to program the fax to answer o n the second ring. I don't know however how you have 2 numbers assigned to one line?


http://h10025.www1.hp.com/ewfrf/wc/manualCategory?product=351106&lc=en&cc=us&dlc=en&lang=en&cc=us

• 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