It sounds like your HP 5740 might be stuck in a driver or spooler conflict after scanning, which can sometimes trigger fax or print errors in Windows 10. I’ve had similar issues when software settings interfere with device communication. While troubleshooting, it helps to double-check drivers, reset the print spooler, and test with another program. For anyone exploring alternatives, I recently found Orca Slicer useful for precise printing tasks, and it runs smoothly on Windows 10 more info at.
https://orcaslicer.pro/