I have a recurrent irritating issue with my HP Color LaserJet CP2025 printer going Offline. If you Google the question you will get a variety of suggestions most of which take an age to download or implement and then still don't work.
I have found the simplest and quickest way to resolve the problem is to delete and reinstall the printer.
Go to Devices and Printers via Control Panel, right-click on the relevant printer and delete. Left-click File and select Add devices and printers. The computer will search and assuming your printer is switched on and connected will find and install the said printer. When it appears in the Printers, right-click and Set as Default Printer. Job done.
