Welcome to the HP Support Community. I'd be happy to assist you with the printer query.
Yes, you can leave the printer turned on. Keeping your printer on all the time will keep your print heads cleaner. Regularly cleaning and maintaining your printer are essential in ensuring it continues printing high-quality documents for a long time.
Power usage is reduced while in Sleep mode. After initial setup of printer, the printer will enter Sleep mode after five minutes of inactivity. Use the following instructions to change the period of inactivity before the printer sleeps -
1. From the printer control panel, touch or swipe down the tab at the top of the screen to open the Dashboard, touch .
2. Touch Sleep Mode, and then touch the desired option.
Hope this helps! Keep me posted.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!