Behind the occurrence of the problems Printer Says Offline HP a communication error might play a role. It will be a good choice to check and resolve the connection problems if you find anything. Moreover, you can go to the ‘Control Panel’ and click on the ‘Devices and Printers’ option. Simply, right-click on the printer and then you should click on the ‘See what's printing’ option. Here, you will have to select the ‘Printer’ option. Now, you should click on the ‘Use Printer Offline’ box to remove the tick mark.