How to Unpause the Print Queue
First, open Print Center. You can do this by clicking the magnifying glass icon in the top right corner of your screen and searching for “Print Center”.
Then, find the print queue you want to unpause. For this example, we are using SPF_Secure_Print. In the top right corner of Print Center, there is a “Play” button, click on that to unpause the queue.
For more information on Print Center, you can check out Apple's documentation here
If you have issues that are not covered by the documentation please visit the Helpdesk.