@justingagliano, 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
The error code OX83C0002A NOS_LOADER_APP on your HP OfficeJet 4650 printer indicates a firmware or software failure. Here are the steps you can take to try to resolve this issue:
Reset the Printer:
- Turn off the printer and unplug it from the power source.
- Wait for about 60 seconds.
- Plug the printer back in and turn it on.
Update Firmware:
- Ensure your printer's firmware is up to date. Check the HP website for any available firmware updates for your OfficeJet 4650 model.
- Update the firmware on an HP printer | HP® Support
Run HP Print and Scan Doctor (Windows only):
- Download and run the HP Print and Scan Doctor tool. Follow the prompts to diagnose and fix common printing issues.
Also, you may refer to this guide: HP Inkjet printers - Printhead errors | HP® Support
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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Regards,