HP Officejet Pro 8500 - Manual (Page 215)

The display always shows Phone Off Hook
Solution: You are using the wrong type of phone cord. Make sure you are using
the phone cord that came with the device to connect the device to your phone line.
If the phone cord that came with the device is not long enough, you can use a
coupler to extend the length. You can purchase a coupler at an electronics store
that carries phone accessories. You will also need another phone cord, which can
be a standard phone cord that you might already have in your home or office.
You might need to connect the supplied phone cord to the adapter provided for
your country/region.
Solution: Other equipment that uses the same phone line as the device might be
in use. Make sure extension phones (phones on the same phone line, but not
connected to the device) or other equipment are not in use or off the hook. For
example, you cannot use the device for faxing if an extension phone is off the
hook, or if you are using a computer dial-up modem to send e-mail or access the
Internet.
The device is having problems sending and receiving faxes
Solution: Make sure the device is turned on. Look at the display on the device. If
the display is blank and the Power light is not lit, the device is turned off. Make
sure the power cord is firmly connected to the device and plugged into a power
outlet. Press the Power button to turn on the device.
After turning on the device, HP recommends you wait five minutes before sending
or receiving a fax. The device cannot send or receive faxes while it is initializing
after being turned on.
Solution:
•
Make sure you used the phone cord supplied in the box with the device to
connect to the telephone wall jack. One end of the phone cord should be
Solve fax problems 211