Knowledge Base

Table of Contents:

1. Confirm the Telephone Line is Functional
2. Check Fax Cable is Correctly Inserted
3. Reset Fax Defaults
4. Replace Fax Cable if Available
5. Disconnect other Devices
6. Disable Error Correction Mode (ECM)
7. Lower the Modem Speed (Baud Rate)

---

How to troubleshoot fax issues on Dell Multifunction Laser Printers

---

Confirm the Telephone Line is Functional

1. Disconnect the fax cable from the the telephone wall socket.
2. Using a telephone handset, confirm outbound calls can be made and inbound calls answered.
3. If you are unable to make/receive calls, or there is excess noise on the line contact your service provider to resolve.

Compatibility with Voice Over Internet Protocol (VoIP) or Private Branch Exchange (PBX) systems cannot be guaranteed. Whenever possible test the suspect device using a standard Public Switched Telephone Network (PSTN) fixed line.

Back to Top

---

Check Fax Cable is Correctly Inserted

1. Ensure the cable is securely connected to the socket marked "Fax" and to the telephone wall socket
2. Remove and reseat the cable at both ends, check for damage to either the cable or socket

Back to Top

---

Reset Fax Defaults

Restoring the default fax settings may resolve connectivity issues.

Refer to your user guide for instructions on how to complete this on your specific model of MFP.

Back to Top

---

Replace Fax Cable if Available

If a suitable new or known good cable is available, fit this and test

Back to Top

---

Disconnect other Devices

Other devices on the line may cause issues. Disconnect other devices such as telephone handsets, ADSL modems, card payment processing devices etc.

Back to Top

---

Disable Error Correction Mode (ECM)

Disabling ECM may resolve some communication issues. Refer to your user guide for instructions on how to complete this on your specific model of MFP.

Back to Top

---

Lower the Modem Speed (Baud Rate)

Manually reducing the modem speed may resolve communication issues. Refer to your user guide for instructions on how to complete this on your specific model of MFP.

Back to Top

---

If you require further assistance or wish to give us feedback, please engage our technical team on Twitter.

Quick Tips content is self-published by the Dell Support Professionals who resolve issues daily. In order to achieve a speedy publication, Quick Tips may represent only partial solutions or work-arounds that are still in development or pending further proof of successfully resolving an issue. As such Quick Tips have not been reviewed, validated or approved by Dell and should be used with appropriate caution. Dell shall not be liable for any loss, including but not limited to loss of data, loss of profit or loss of revenue, which customers may incur by following any procedure or advice set out in the Quick Tips.