Vista system Scan Fax failure how to do

Cause of failure

This problem may occur if one of the following conditions is true: • Line noise is present on the telephone line connected to the modem.

• The modem appears to behave abnormally.

• A timing problem occurs between the computer and the modem.

Warning: If you modify the registry incorrectly by using Registry Editor or other methods, you may have serious problems. These problems may require the installation of an operating system to be reset by XP. Microsoft cannot guarantee that these issues will be resolved. It is at your own risk to modify the registry.

Solving method

To resolve this issue, you must use different class support to retransmit faxes. To do this, follow these steps:

1. Click Start, type Device Manager in the Start search box, and then click Device Manager in the programs list.

2. Expand Modems, right-click the modem you are using, and then click Properties.

3. On the Diagnostics tab, click Query Modem.

4. In the command column, locate at+fclass=, and then note the value in the Response column.

Note: If the response column contains a value of 1, 2, or 2.0, the modem supports classes 1, Class 2, and Class 2.0, respectively.

5. Click Start, type regedit in the Start search box, and then click Regedit in the Programs list.

6. Locate and click the following registry subkey:

Hkey_local_machinesoftwaremicrosoftfaxtapidevices

7. Expand Tapidevices, and then click the device ID of the modem.

8. Click Modem, right-click Fixmodemclass, and then click Modify.

9. In the Value data box, type one of the following values according to the class you want to set: • Typing 1 sets the fax modem to use Class 1

• Typing 2 will set the fax modem to use Class 2

• Typing 20 will set the fax modem to use Class 2.0

10. Quit Registry Editor.

11. Restart the Fax service. To do this, click Start, type the service in the Start search box in the Windows system, and then click Services in the Programs list.

If you are prompted for an administrator password or for confirmation, type the password or click Continue.

12. In the Services list, click Fax, and then click Restart.

13. Try to send a fax. If this problem occurs again, repeat steps 1 through 12 and set the modem to use a different class.