Troubleshooting; Fax Problems - HP 640 Fax series User Manual

Troubleshooting

Troubleshooting
Your problem may be listed in "LCD error messages" on page 51. The chart below shows
other problems you can solve yourself. For problems you cannot resolve here, see Use
Hewlett-Packard support services on page 64.
TIP: You can test your HP Fax to make sure it is set up properly for faxing. Place a
document in the document feeder, dial 1-888 HP FAX ME (1-888-473-2963) and press
. Please wait approximately 1 minute and you will receive a "Fax Back System
Start/Enter
Test" page, confirming your product is working correctly. The Fax Header must be set up in
order to test the fax machine.

Fax problems

Problem
The machine is not working, there is
no display, and the buttons are not
working.
No dial tone.
Someone calls and gets a busy signal
even though the fax is not busy.
The numbers stored in memory do not
dial correctly.
The document does not feed into the
machine.
You cannot receive faxes
automatically.
The machine cannot receive faxes
manually.
54 Care and maintenance
Solution
Unplug the power cord and plug it in again. Check that your
socket is live.
Check that the phone line is connected properly to the port in
the bottom of the fax. Unplug and replug it. Make sure it clicks.
Check the phone socket in the wall by plugging in another
phone.
This may rarely occur if the answer mode is set to AUTO, a
voice call comes in and is hung up without being answered,
and another call is immediately received. In AUTO mode the
machine goes back to fax receive mode if the voice call is not
answered. The line will appear busy until the machine resets.
Make sure the numbers are programmed correctly. To print a
Print reports
Phone book list, see
Be sure the document is not wrinkled, and you are putting it in
correctly. Check that the document is the right size and not too
Document types and sizes
thick or too thin. See
Check if TEL appears on the right side of the display. In TEL
mode, you cannot receive a fax automatically. Be sure the
handset is seated on the cradle properly.
If the ink is low, the fax will stop printing faxes. Replace the
print cartridge.
If the fax memory is full, the fax will stop answering the phone.
Load paper and print the faxes in memory to clear out the
memory.
Do not hang up the handset before pressing Start/Enter to
receive a fax.
on page 39.
on page 57.