If you are still having problems faxing, set the Fax Speed to a slower rate such as Medium (14400) or Slow (9600).

For more information, see:

•“Send a fax in Error Correction Mode” on page 139

•“Set the fax speed” on page 30

Cause: Other equipment that uses the same phone line as the HP All-in-One might be in use.

Solution: Make sure extension phones (phones on the same phone line, but not connected to the HP All-in-One) or other equipment are not in use or off the hook. For example, you cannot use the HP All-in-One 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.

Cause: The HP All-in-One shares the same phone line with a DSL service and a DSL filter is not connected.

Solution: If you use a DSL service, make sure that you have a DSL filter connected or you will not be able to fax successfully. The DSL service sends out a digital signal on the phone line that can interfere with the HP All-in-One, preventing the HP All-in- One from sending and receiving faxes. The DSL filter removes the digital signal and allows the HP All-in-One to communicate properly with the phone line. To check if you already have a filter installed, listen to your phone line or dial tone. If you hear noise or static on the line, you probably do not have a DSL filter installed, or it is installed incorrectly. Obtain a DSL filter from your DSL provider. If you already have a DSL filter, make sure it is connected correctly.

Cause: Another process has caused an error in the HP All-in-One.

Solution: Check the display or your computer for an error message providing information about the problem and how to solve it. If there is an error, the HP All-in- One will not send or receive a fax until the error condition is resolved.

You can also check the status of the HP All-in-One by clicking Status in the HP Solution Center.

For more information, see: “Errors” on page 258

Cause: You are using either a PBX or an ISDN converter/terminal adapter.

Troubleshooting

Fax troubleshooting

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