Welcome to the HP Support Community. I'd be happy to assist you
Due to the current global COVID-19 situation, we're seeing an influx of customers coming in for support. We appreciate your patience.
To change the sleep mode settings follow the below steps-
--->Touch on the wifi icon ((i)) on the printer, and take down the IP address
--->Open a web browser (ex Chrome or Mozilla) and type in the printer's IP
--->then go to settings on the main ews page --> power management ---> select sleep mode to max 5 min which is the minimum time
Hope this helps! Keep me posted.
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