error printer queue

when i'm print some document it says error, when i'm trying to delete a document in the queue of my printer, but I can't. It writes "deleting", but it never finishes, I've tried to cancel the same from the field of my printer but it doesn't disappear, restarting my computer, restarting the document, turning off the printer, unplugging the cables, still I can't. What else can I do?

The solution is to clear the print queue manually. this is the last option if it can't be deleted or still there after computer restart or printer restart. The step is go to service and looking for spooler, then stop this service. after that use Windows Explorer to navigate to the folder c:\Windows\System32\spool\PRINTERS then delete the contents of this folder. finally is start the spooler service again, and you can print again