Administration Guide : Monitoring Xinet print queues : Summary

Summary
The Summary subtab provides information about existing print queues and the files that have been sent to them.Queue status icons lists the types of possible queues and shows the icons associated with each.
Queue status icons
Here’s what the icons represent:
 
This is a print queue that uses the BSD Unix lpr(1B) utility for print requests
This tells you that a queue is currently accepting new jobs. It toggles to Queue Stopped. When changing its setting you must specify how the queue should handle any job currently in process. Queues can stop:
 
Using the Queue Status Summary Page
The Queue Status, Summary page offers shortcuts to further information about jobs and queues:
Clicking on the name of a Hot Folder will show you current contents of that folder. (A Back button returns you to the full Summary.)
Clicking on any Print Queue name will automatically open its Pending Jobs page.
Clicking on the Destination for any queue that writes information to a folder or directory will show the current contents of that repository. (A Back button returns you to the full Summary.)
Clicking a green Queue Control icon will allow you to stop a queue, presenting some options about what to do if a job is currently printing.
Clicking on a red Queue Control icon will allow you to restart a queue that has been stopped.