Hi @LetiziaP1,
Welcome to the HP Support Community!
Thanks for reaching out about your query regarding your printer!
We're thrilled to have the opportunity to assist you and provide a solution.
Try these steps:
Check the Toner Cartridge
Verify Cartridge Compatibility:
- Ensure that the toner cartridge is the correct model for the HP LaserJet MFP M139we. The correct toner cartridge should be an original HP cartridge specifically designed for your printer.
- Check if the cartridge is properly installed and seated.
Reinstall the Toner Cartridge:
- Turn off the printer and unplug it.
- Open the printer's toner access door and remove the toner cartridge.
- Carefully reinstall the toner cartridge, making sure it is securely in place.
Update Printer Firmware
Kindly refer to this link to update your printer firmware.
Check Wi-Fi Connectivity
Restart Network Devices:
- Restart your router and ensure it's functioning properly.
- Make sure other devices can connect to the Wi-Fi network.
Reconnect Printer to Wi-Fi:
- Go to the printer's control panel and navigate to the Wi-Fi setup.
- Follow the instructions to reconnect the printer to the Wi-Fi network. Use the WPS button on the router if available.
Perform a Factory Reset
Refer to the steps on this link to restore factory defaults.
I hope this helps.
I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨
Take care and have an amazing day ahead! 🚀
Best regards,