blue internet light and red web light flashing

[NatDan]

My Deskjet 3755 has a red light flashing about the round ball picture and blue one flashing over the internet button. HELP

[Raj_05]

Hi @NatDan,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

When lights on your HP Deskjet 3755 printer are flashing, it typically indicates an issue that needs attention. Here's what you can do to troubleshoot.

• Check Paper Jam: Open the printer's access door and check for any paper jams. Clear any paper stuck inside carefully.
• Check Ink Cartridges: Ensure that the ink cartridges are properly installed and have sufficient ink levels. If needed, replace any empty or low cartridges.
• Reset the Printer: Turn off the printer, disconnect the power cord, and wait for a few minutes. Then, reconnect the power cord and turn the printer back on.
• Check Wireless Connection: If the blue light flashing over the internet button indicates a wireless connectivity issue, check if the printer is properly connected to your Wi-Fi network. You may need to reconfigure the wireless settings.
• Software Update: Ensure that your printer's firmware and drivers are up to date. Visit the HP website to download and install any available updates for your printer model.
• Inspect for Hardware Issues: If none of the above steps resolve the issue, there might be a hardware problem with the printer. 

By following these steps, you should be able to identify and resolve the issue causing the flashing lights on your HP Deskjet 3755 printer.

I hope this helps.

Take care and have a good day.

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Alden4

HP Support