HP OfficeJet 4650 not printing? the wireless light on the printer is steady

Resetting the printer can help restore a connection to the computer.
If the printer is off, turn on the printer, and then check the status of the printer.
If the printer starts printing jobs from the print queue, your printer is clearing out queued print jobs and is online. If the printer goes to an idle state after its startup routine, it might be online.
If the computer still shows the printer as offline, continue using these steps.
With the printer turned on, disconnect the power cord from the back of the printer.
Unplug the printer power cord from the wall outlet.Wait at least for a minute. Plug the power cord back into the wall outlet.Reconnect the power cord to the back of the printer.
If it does not help, run the HP Print and Scan Doctor to automatically check for issues and resolve it