Dell C3765dnf Dell Multifunction Color Laser Printer Users Guide - Page 378

13 Turn off the printer, and turn it on again to apply the settings. Advanced Fax Settings NOTE: The advanced fax settings are only meant for advanced users. Incorrect settings may damage the printer. 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. 1 Turn off the printer. 2 Disconnect all network, phone line, and USB cables from the printer. 3 Turn on the printer while holding down the 8 and 2 buttons on the number pad to start in Customer Mode. After all the advanced fax settings have been made, you will need to turn off and on the printer for the new settings to be effective. Fax Data Encoding Method Some of the legacy fax devices do not support the Joint Bi-level Image Experts Group (JBIG) data encoding method. You may experience fax send or receive errors due to this data encoding method. You can disable the JBIG and select the Modified Huffman (MH), Modified Read (MR), or Modified Modified Read (MMR) encoding with the following instructions. You can change the modem transmission encoding with the following instructions. 1 Turn on the printer while holding down the 8 and 2 buttons on the number pad to start in Customer Mode. 2 Press 3 Press button to select Fax/Scanner Diag, and then select OK. butto n until Parameter appears, and then select OK. 4 Ensure that FAX Parameter appears, and then select OK. 5 Press butto n until G3M TX Coding appears, and then select OK. 6 Press button until the desired encoding appears, and then select OK. You can select MH, MR, or MMR. You can change the modem receive encoding with the following instructions. 1 Turn on the printer while holding down the 8 and 2 buttons on the number pad to start in Customer Mode. 2 Press button to select Fax/Scanner Diag, and then select OK. 3 Press butto n until Parameter appears, and then select OK. 4 Ensure that FAX Parameter appears, and then select OK. 5 Press butto n until G3M RX Coding appears, and then select OK. 6 Press button until the desired encoding appears, and then select OK. You can select MH, MR, or MMR. Diagnosing the Fax Connection You can diagnose the Fax connection using the FAX Line Diagnosis feature that can detect the abnormalities of telephone line connection. 1 Turn on the printer while holding down the 8 and 2 buttons on the number pad to start in Customer Mode. 2 Press button to select Fax/Scanner Diag, and then select OK. 3 Press butto n until FAX Test appears, and then select OK. 4 When the message Check FAX Connection appears, select OK. 376 Faxing