Question about HP Officejet Pro L7780 All-In-One InkJet Printer

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Our L7780 has a message saying phone off the hook. It doesn't have a phone! No faxes can come through, the phone rings, but doesn't pick up automatically as it used to.

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Double check every phone that is on the same line, there is another device on the line that isn't hanged up properly and throwing things off.

Posted on Mar 28, 2011

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Posted on Jan 02, 2017

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1 Answer

I can't receive fax messages. the phone rings and the response says call pick up.


Hi Viv, you still use the ole fax machine eh?? Does it make the screeching sound when you pick up the phone? Do you have a separate fax line? Check your settings. If nothing else works try using emails to do your stuff..

Oct 01, 2017 | The Office Equipment & Supplies

1 Answer

I don't use an answering machine. My phone has voice mail but the machine is not even recognizing when a fax comes in. The fax call goes into the voice mail each time. The phone line is working-I get a...


You need to set your phone to pick up later than the fax machine. set it to pick up on the 4th or 5th ring, set the fax to pick up at 2 or 3. Better yet, get a distintive ring # set up by your phone co. then the fax will only recognize that ring.

Dec 30, 2010 | Canon PIXMA MX870 Wireless Office...

2 Answers

My HP 7780 always says phone off hook. When I disconnect the phone line for awhile and reinstall it faxes once properly then the phone off hook message reappears.


I use a VOIP line and get the same error msg. Here's what I do- I dial the fax number with the line unplugged (hence no off-hook message), press "start Fax", and as soon as I hear the fax machine "Click" to pickup the line, I put the line in the machine. Works every time!

Oct 10, 2010 | HP Officejet Pro L7780 All-In-One InkJet...

1 Answer

My fax machine is hooked to my main line, how do I keep my fax machine from picking up all my calls? Do I have to set my fax to more rings?


The only real solution is to have a different number/line for your fax or a special phone exchange.

If you're just having problems getting to the phone in time and you're not worried about people leaving voicemail you could increase the number of rings to the maximum but it will still intercept anything that hits that point.

Probably not what you were hoping to hear but unfortunately it's not a high powered system.

Hope it helps.

Martin

Oct 01, 2009 | HP Officejet Pro L7780 All-In-One InkJet...

1 Answer

Incoming faxes not received, all else works.


Hi there,

It is your phone answering machine that must pick up in three rings or less.

Therefore 4 is too much. I would not limit number for fax machine itself.

On receipt of fax sometimes seems like it will not work when answering machine picks up in the middle. However, leave it and it will work. Sometimes sender will hear your answering machine and cancel as well. So try to ensure they don't give up at other end as well.

Good Luck!

Feb 26, 2009 | HP OfficeJet 6110 All-In-One InkJet...

1 Answer

Increase the number of rings


the default setting is 5 rings. if you need to change that:
set the ring to answer to higher number, however, that will put the machine in manual answering of fax.
the better setting is to rest the phone or the answer machine to a lower number of rings.

Jan 13, 2009 | HP Officejet Pro L7780 All-In-One InkJet...

1 Answer

Receiving Problem


Do you have a DSL or any other digital phone line?

Are you set to "AUTO RECEIVE" ?

Call the fax machine from a regular phone and listen for fax tones.

Sep 29, 2008 | Panasonic KX-FL511 Plain Paper Laser Fax

3 Answers

Our new HP Oficejet Pro L7780 can send faxes but can't receive


Hi,

First things first, i really want to know how things being setup in your end. Let say for example, from the walljack what is the device connected to it. Or if your using one line for both incoming calls and faxes. Or if your using a DSL also for that same phone number for faxing/incoming calls.

Those are just severa factors that affect your problems. Meanwhile, i cant give you a solution on your issue since i still dont have a clear picture on are the devices connected with each other. ALso, its really advisable that you need to use the telephone cord that came out with the box.

Thank you so much. I remain.

adonscott

Apr 23, 2008 | HP Officejet Pro L7780 All-In-One InkJet...

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