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HP Recommended
HP Officejet 5740
Microsoft Windows 10 (64-bit)

I am trying to set up the fax option on this machine. When I do a Fax Test, the report says "An active phone line is not detected". I have tested the phone line with a phone and I do get a dial tone. I am also useing a 2 wire phone cord. Any help would be appreciated.

3 REPLIES 3
HP Recommended

@btravels,

 

Welcome to the HP Forums!

 

Thank you for posting your query on this forum, it's a great place to find answers.

 

I reviewed your post and I understand that you are unable to print from your new computer.

 

Don’t worry, I assure you I will try my best to get this sorted.

 

Awesome job on diagnosing the issue correctly and performing smart troubleshooting before posting your question on HP forums. Kudos to you on that score. 

 

I recommend you follow the below steps and check whether the issue is resolved.

 

Make sure that all other devices that use the same phone line (phone number) are hung up or not actively using the phone line - this includes telephone answer machines and the hand receiver that might be attached to the fax machine. You can lift a telephone receiver that shares the same and listen to the phone receiver and listen to hear if the phone is being used. If you hear anything other than a dial tone, including silence, then the phone line is in use and is probably the reason the fax machine is showing a message.

Make sure the phone line has a dial tone before attempting to fax.

NOTE: If your phone line is used with a DSL broadband Internet service, make sure a filter is connected to the line if you can hear noise when the modem is on.

If phone off hook message continues and you've made sure that the line is active (has a dial-tone), then continue to the next step.

 

Step 2: Reset the printer or fax machine

 

Reset the printer or fax to clear any stuck fax jobs or problems related to the printer faxing hardware.

Disconnect the power cord from the machine.

Wait 60 seconds.

Reconnect the power cord and wait for the printer/fax machine to fully start up and become idle.

NOTE: If using ISDN or PBX, detach the HP printer or fax machine from the ISDN A/D converter or from the PBX and use a 2 wired cable between the ISDN A/D converter or PBX.

Try to fax again:

 

 If you continue facing the issue, follow the steps in the below article under unable to send fax.

 

https://support.hp.com/in-en/product/hp-officejet-5740-e-all-in-one-printer-series/6617253/document/...

 

Let me know how it goes and you have a great day!

 

If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!

 

Cheers!

 

The_Fossette
I am an HP Employee

HP Recommended

Thanks. I have done all of the things mentioned and still it says that it cannot detect a dile tone. Our phones work, I have no answering machine. Any other suggestions?

HP Recommended

@btravels,

 

It is great to have you back and your patience is greatly appreciated.

 

I will share you few details through a private message about the service options dedicated to your product, please watch your inbox for more information.

 

Good day! Take care 🙂

 

Cheers!

 

The_Fossette
I am an HP Employee

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