Error correction mode (ecm), Modem speed – Dell 3115cn Color Laser Printer User Manual
Page 328
If you are experiencing fax send or receive errors, there is an advanced fax settings menu which you can
access and change the settings accordingly.
To enter the Diagnostic Menu (Customer Mode), follow the instructions.
Turn off the Dell MFP Laser 3115cn.
1.
Disconnect all network, phone line, USB and Parallel cables from the device.
2.
Turn on the Dell MFP Laser 3115cn while holding down the
and
button. The Customer Mode
menu appears.
3.
After all the advanced fax settings have been made, you will need to turn off and on the Dell MFP Laser
3115cn for the new settings to be effective.
4.
Error Correction Mode (ECM)
Some of the legacy fax devices do not support the Error Correction Mode. You may experience fax send or
receive errors due to this feature. You can disable the ECM with the following instructions.
When the printer is in Customer Mode , select Fax/Scanner Diag and press
button.
1.
Press the
button until Parameter appears, then press the
button.
2.
Press the
button until FAX Parameter appears, then press the
button.
3.
Press the
button until Capability ECM appears, then press the
button.
4.
Press the
button until Disable appears, then press the
button to disable ECM.
5.
Modem Speed
Some of the legacy fax devices do not support the V.34 modem speed of 33,600 bits per second (bps). You
may experience fax send or receive errors due to the higher modem speed. You can disable the V.34 with
the following instructions.
When the printer is in Customer Mode , select Fax/Scanner Diag and press
button.
1.
Press the
button until Parameter appears, then press the
button.
2.
Press the
button until FAX Parameter appears, then press the
button.
3.
Press the
button until Capability V34 appears, then press the
button.
4.
Press the
button until Disable appears, then press the
button to disable V.34.
5.
You can also reduce the modem speed if you continue to experience fax communication problem.