Chapter 12
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 the problem persists, turn Error Correction Mode (ECM) off and contact your telephone company.
If you are still having problems faxing, set the Fax Speed to a slower rate such as Medium or Slow.
To change the ECM setting from the control panel
1.Press Setup.
2.Press 5, and then press 6.
This selects Advanced Fax Setup and then selects Error Correction Mode.
3.Press to select On or Off.
4.Press OK.
To set the fax speed from the control panel
1.Press Setup.
2.Press 5, and then press 7.
This selects Advanced Fax Setup and then selects Fax Speed.
3.Press to select one of the following settings, and then press OK.
Fax speed setting
Fast
Medium
Slow
Fax speed
v.34 (33600 baud)
v.17 (14400 baud)
v.29 (9600 baud)
Cause: Other equipment that uses the same phone line as the HP
Solution: Make sure extension phones (phones on the same phone line, but not connected to the HP
Cause: The HP
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
Cause: Another process has caused an error in the HP
174 Troubleshooting