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Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan
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1536 dnf printer unable to send or receive fax

HP Recommended
Laserjet 1536dnf MFP
Microsoft Windows 10 (64-bit)

Fax stopped functioning after August 2020 windows 10 home update version 1909


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Hi @Equality,


I'd like to help!


Print a fax test report and share the results -


a. On the control panel, open the Setup menu, and then open the Service menu.

b. Select the Fax Service option.

c. Select the Run Fax Test option. The product prints a fax test report.


Meanwhile, Check the connection

Check for phone line connection issues that might be causing failed sent faxes.

  • Call the fax number you are sending to from a phone: If you do not hear fax tones, the receiving fax machine might be turned off or disconnected.

  • Confirm the fax setup: There are two phone ports on the rear the printer labeled 1-Line and 2-Ext. Connect the phone line to the 1-Line port, and connect the answering machine to 2-Ext.

    Go to HP Printers - How to Fax for steps to set up your printer.

  • Check the phone line: Connect a phone to the wall jack and try to make a call. If the call fails or there is no dial tone, check if another phone or device is keeping the line open. Additionally, if you hear static, there might be interference from nearby electrical appliances (motors, fans, kitchen appliances, or televisions) and/or coax cables, or there is an issue with the line quality that requires attention from your phone service provider.

  • Use the fax cord that shipped with your printer: HP fax-capable printers ship with a two-wire phone cord. If you are using a different cord, confirm the connector does not have four wires. Shorter, higher quality cords work better than longer cords of lesser quality.

    Connector on a two-wire fax cord

  • Remove other devices from the phone line: Devices such as answering machines, modems, or other telephones might cause faxing issues.

Hope this helps! Keep me posted. 


And, Welcome to the HP Support Community. 


Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

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