Light blinking HP OfficeJet Pro 7740

[Nancy505]

HP OFFICE JET Pro 7740 . I tried unplugging and plugging the power supply. No luck on 11-29-24.

[Gaya1239]

Hi @Nancy505 ,

Welcome to The HP Support Community.  

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

I understand you are facing an issue with your HP OfficeJet Pro 7740 is experiencing a blinking light issue and power cycling hasn’t resolved it, here are some steps you can try:

1. Identify the Blinking Light Pattern

• Look for any error codes or specific patterns (e.g., power light blinking, error light blinking). This will help identify the root cause.
• Check the printer display screen for a message or error code.

2. Perform a Hard Reset

1. With the printer powered on, unplug the power cord from the back of the printer and the wall outlet.
2. Wait 60 seconds.
3. Plug the power cord directly into a wall outlet (bypass any power strips or surge protectors).
4. Reconnect the power cord to the printer and turn it on.

3. Check for Paper Jams

1. Open all printer covers and access areas.
2. Inspect for jammed paper or debris. Remove any you find.
3. Ensure the paper tray is loaded correctly and not overfilled.

4. Check Ink Cartridges

1. Open the ink cartridge access door and check for proper installation.
2. Remove and reseat the cartridges to ensure they are securely in place.
3. Check for any warnings about low or empty ink.

5. Update the Printer Firmware Update the firmware on an HP printer

1. If the printer powers on and connects to a network, check for firmware updates:
   • Open the HP Smart app or the HP Support website.
   • Look for Firmware Update under your printer settings.
2. Install any available updates.

6. Perform a Factory Reset

1. On the printer control panel, navigate to Settings > Printer Maintenance > Restore Factory Settings.
2. Confirm to reset the printer.

I hope this helps. 

Take care and have a good day.

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