HP Officejet J5740 All-in-One Printer - Manual (Page 178)

Solution: Make sure you connect the HP All-in-One to an analog phone line or you
will not be able to send or receive faxes. To check if your phone line is digital, connect
a regular analog phone to the line and listen for a dial tone. If you do not hear a normal
sounding dial tone, it might be a phone line set up for digital phones. Connect the
HP All-in-One to an analog phone line and try sending or receiving a fax.
Cause: The HP All-in-One shares the same phone line with a DSL service and the
DSL modem might not be properly grounded.
Solution: If the DSL modem is not properly grounded, it can create noise on the
phone line. Phone lines with poor sound quality (noise) can cause faxing problems.
You can check the sound quality of the phone line by plugging a phone into the
telephone wall jack and listening for static or other noise.
If you hear noise
1. Turn off your DSL modem and completely remove power for at least 15 minutes.
2. Turn the DSL modem back on.
3. Listen to the dial tone again. If the dial tone sounds clear (no noise or static), try
sending or receiving a fax.
NOTE: You might notice static on the phone line again in the future. If the HP All-
in-One stops sending and receiving faxes, repeat this process.
If the phone line is still noisy, contact your phone company. For information on turning
your DSL modem off, contact your DSL provider for support.
Cause: You are faxing over the Internet using an IP phone, and there was a problem
with the transmission.
Solution: Try resending your fax at a later time. Also, make sure your Internet
service provider supports faxing over the Internet.
If the problem persists, contact your Internet service provider.
The HP All-in-One cannot send faxes, but can receive faxes
Cause: The HP All-in-One is not set up properly for faxing.
Solution: Follow the instructions to set up the HP All-in-One properly for faxing,
based on the equipment and services you have on the same phone line as the HP All-
in-One. Then, run a fax test to check the status of the HP All-in-One and to make sure
you set it up properly. For more information, see
Set up the HP All-in-One for
faxing .
Chapter 12
176 Troubleshooting