Follow these steps:
1. Open the print queue by clicking on the printer icon (1) in your system tray (lower right corner) or search (2) for "Printers" and click on "Printers and Scanners". Find your printer on the list and click Open Queue (3).
Advanced Method (PC Only).
1. Go to the Start menu.
2. Search for Services.msc. A services list will be displayed. Right Click on "Print Spooler" and choose "Stop".
3. Wait five seconds after it has been stopped. Delete any files from the following folder C:\Windows\System32\spool\PRINTERS.
4. Go back to Services.msc and right click on Print Spooler again and click "Start".
1. Find the Printer Icon on your Dock. Click on it.
2. Click the x on the print job you want to cancel. (Move on to the next steps if it does not cancel)