To cancel from a Windows computer:
1. Go to Start
2. Type "Control Panel"
3. Select "Devices and Printers"
4. Double click on the printer you sent the document to
5. Select the printing job you wish to cancel
5. Right-click and select Cancel (it may not disappear immediately)
To cancel from a Mac computer:
1. Go to System Preferences
2. Click "Printers and Scanners"
3. Click on the printer (from the left-hand side) that you sent the document to
4. Click "Open Print Queue..."
5. Click the "x" to the right of the document you are trying to cancel
