Question about HP Officejet J5780 All-In-One Printer

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My fax isn't working, it rings but won't connect.

I replaced the phone cord to my HP Officejet J5780 All-in-One printer/scanner/coppier/fax after the dog chewed the cord, but it is still not faxing. I re-booted the printer and computer, but it didn't help. What else should I do?

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  • ivyplant Jun 22, 2009

    I agree, that's why I don't know what else to do. I did as you suggested and plugged the cord into a phone and got a good dialtone. (Excellent idea, that) Then plugged it back into the fax/printer/etc, and tried to send a fax. Got a 'no answer' error. Another excellent suggestion?

  • ivyplant Jun 22, 2009

    It works! Thank you for giving your time to us who cannot afford outrageous tech support fees. You are most appreciated.



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Plug in a regular phone and make sure you are getting a dial tone. If you still are getting a dial tone it should work fine. Replacing a phone cord should not change anything as long as you lugged it into the same plugs and it worked before setup like that. Hope this helps

Posted on Jun 22, 2009

  • Troy Anderson Jun 22, 2009

    try to send to another fax number to make sure it isn't them. also if you can have someone send you a fax and see if you can recieve.

  • Troy Anderson Jun 22, 2009

    /me takes a bow. glad I could help. Can you change the rating to fixed please :)



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the issue that you have has something to do with the "Rings to answer", for you to change it follow the steps..

1. press SETUP BUTTON on your printer
2. Scroll down and look for BASIC FAX SETUP, then press OKAY
3. Inside Basic fax setup, scroll down and look for RINGS TO ANSWER, then press okay.
4. It will give you choices there, just look for ANSWER ON RING 6, then press okay,

tadahhhh!! THAT SHOULD WORK.

thank you so much.


Jul 16, 2008 | HP Officejet J5780 All-In-One InkJet...

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Stop receiving faxes


You can just simply unplug the telephone cord from the back of the machine so that it will not ring and it will not receive a fax.


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In order to use the fax > u need to use a two pronge cable ,it might be shipped to u within the box , inc ase its not there , u may contact HP at 1800-474-6836 or you can get it froma near by store as well namely office max or staples or cosco.


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