The first step: the taskbar in the lower right corner of the printer icon will not disappear, but there is no red exclamation point display. Put the mouse on the tip "a document to be printed, because".
The second step: double-click the taskbar's printer icon, open the Printer Task window, found that the title bar shows "Offline Use Printer" (Some only "offline" two words).
Step Three: You can click the Printer menu in the Print Task window and choose "Use Printer Offline".
Fourth step: Because sometimes it is not careful to point to this menu command. If not, go to the top of the printer to check if the network connection or the USB cable is connected stably, Reseat and try again. At the same time, also check your computer's network or USB connection is normal.
Fifth step: or restart the printer to try.
Sixth step: If not, you can try to clean up all the printer tasks. Because the print spooler fails to print the task, it stays in the Print task list and does not disappear automatically, causing the print queue to block and the printer to display an "offline" status. You can then "cancel all documents" to clean out the remaining Print task list.
Seventh step: If not, you will need to restart the Print Service program.
Eighth step: Or not, try restarting the computer, then print or repeat the above operation.