Unable to Fax from HP OfficeJet Pro 6978

[DianeAndrews]

HP OfficeJet Pro 6978 has recently been unable to send faxes.

[Garp_senchau]

@DianeAndrews, Welcome to HP Support Community,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

If your HP OfficeJet Pro 6978 is unable to send faxes, there are several steps you can take to troubleshoot the problem:

Check Connection and Setup:

• Ensure that the telephone line is securely connected to the fax port on the printer.
• Verify that the line is not being used for voice calls while attempting to fax.
• Confirm that the printer is connected to a traditional analog phone service, as HP printers are not designed for digital service lines like DSL, PBX, or VoIP without appropriate adapters.

Fax Settings:

• Access the Fax Setup menu on the printer. Check if the fax settings are configured correctly such as phone line settings and dialing prefixes.
• Ensure that the fax function is set up to receive automatic transmissions if you are using an answering machine.

Firmware Updates:

• Update the printer’s firmware to the latest version, as keeping the software up to date can resolve compatibility issues and bugs. You can check for updates on the HP website or through the printer's control panel.

Fax Speed Setting:

• Reduce the fax speed setting. Sometimes lowering the transmission speed can facilitate better communication over certain phone lines.

I hope this helps.

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

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