HP OfficeJet Pro 7740 - Manual (Page 142)

● Make sure you have correctly connected the printer to the telephone wall jack. Using the phone cord
supplied in the box with the printer, connect one end to your telephone wall jack, then connect the other
end to the port labeled 1-LINE on the back of the printer.
● Other equipment, which uses the same phone line as the printer, might be causing the test to fail. To find
out if other equipment is causing a problem, disconnect everything from the phone line, and then run
the test again.
—
If the Fax Line Condition Test passes without the other equipment, then one or more pieces of the
equipment is causing problems; try adding them back one at a time and rerunning the test each
time, until you identify which piece of equipment is causing the problem.
— If the Fax Line Condition Test fails without the other equipment, connect the printer to a working
phone line and continue reviewing the troubleshooting information in this section.
● If you are using a phone splitter, this can cause faxing problems. (A splitter is a two-cord connector that
plugs into a telephone wall jack.) Try removing the splitter and connecting the printer directly to the
telephone wall jack.
● Make sure you use the phone cord that came with the printer. If you do not use the supplied phone cord
to connect from the telephone wall jack to the printer, you might not be able to send or receive faxes.
After you plug in the phone cord that came with the printer, run the fax test again.
After you resolve any problems found, run the fax test again to make sure it passes and the printer is ready
for faxing. If the Fax Line Condition test continues to fail and you experience problems faxing, contact your
telephone company and have them check the phone line.
Troubleshoot fax problems
Troubleshoot fax problems Use an HP online troubleshooting wizard.
Resolve problems sending or receiving a fax or faxing to your computer.
NOTE: The HP online troubleshooting wizards may not be available in all languages.
Read general instructions in the Help for specific fax problems
What kind of fax problem are you having?
The display always shows Phone Off Hook
● You are using the wrong type of phone cord. Make sure you are using the 2-wire phone cord that came
with the printer to connect the printer to your phone line. If the phone cord that came with the printer is
not long enough, you can use a longer phone cord to extend the length. You can purchase the cord at an
electronics store that carries phone accessories.
● Other equipment that uses the same phone line as the printer might be in use. Make sure extension
phones (phones on the same phone line, but not connected to the printer) or other equipment are not in
use or off the hook. For example, you cannot use the printer for faxing if an extension phone is off the
hook, or if you are using a computer dial-up modem to send email or access the Internet.
The printer is having problems sending and receiving faxes
● Make sure the printer is turned on. Look at the display on the printer. If the display is blank and (the
Power button) light is not lit, the printer is turned off. Make sure the power cord is firmly connected to
the printer and plugged into a power outlet. Press
(the Power button) to turn on the printer.
ENWW Fax issues 129