Adjusting max send/receive speed in fax environments with poor line quality or noisy phone lines

Issue description

Consider this procedure if you observe any of the following fax symptoms:

• Noisy phone lines with a lot of interference.
• Digital phone lines with poor signal conversion.
• Phone lines with poor signal strength.
• Several fax errors on the fax call or transmission log.

Solution

1. Lower the Max Send/Receive rate to the slowest possible rate of 9600 for testing purposes. See the following instructions for further information.

   Did the lower 9600 speed work?

   • If the 9600 bps is successful, increase the speed in increments up to 14.4 kbps.
   • If the 9600 bps is not successful, the phone line quality is beyond what is acceptable for fax transmissions, or there is a fax setup issue, or a different phone line issue exists.


2. Continue to operate the MFP at 14,400 bps or 14.4 kbps.



3. Optionally, continue to increase the Max Send/Receive rates until failures reoccur, and then report your results to your phone line service/administrator.

Failure explanation

Higher speeds (33.6 kbps) require better phone line conditions.

Adjusting the max speed rate

Method 1: Control Panel

Note:  This method is preferred if the device is not on the network.

1. Click the MENU button.



2. Click the down-arrow and click SETTINGS when visible.



3. Click the FAX SETTINGS.



4. Select ANALOG FAX SETUP.



5. Click FAX SEND or FAX RECEIVE SETTINGS.



6. Locate the MAX SPEED setting.



7. Click the down-arrow and select 9600.



8. Click SUBMIT.



9. Try to send or receive another fax.

Method 2: Embedded web server

1. Obtain the printer's TCP/IP address.



2. Open your web browser.



3. In the URL field, type <MFP's IP_ADDRESS>, where IP_ADDRESS is the TCP/IP address of the printer.



4. Click SETTINGS.



5. Click FAX SETTINGS.



6. Click ANALOG FAX SETUP.



7. Scroll down to FAX SEND or FAX RECEIVE SETTINGS depending on the nature of the fax problem.



8. Locate the MAX SPEED setting.



9. Click the down-arrow and select 9600.



10. Click SUBMIT.



11. Try to send or receive another fax.

MFP model "Max Speed" setting locations

Control Panel locations:

Menus> Settings> Fax Settings> Analog Fax Setup> Fax Receive or Send Settings> Max Speed

Web page locations:

Configuration (Settings)> Fax Settings> Analog Fax Setup> Fax Receive or Send Settings> Max Speed