When printing files over a network, you might encounter the following types of problems:
Requests sent to print servers might back up in the client system (local) queue.
Requests sent to print servers might back up in the print server (remote) queue.
Print requests submitted to a print server might back up in the client system queue for the following reasons:
The print server is down.
The printer is disabled on the print server.
The network between the print client and print server is down.
Underlying network software was not set up properly.
While you are tracking the source of the problem, you should stop new requests from being added to the queue. See How to Accept or Reject Print Requests for a Printer for more information.
If print requests back up in the print server queue, the printer has probably been disabled. When a printer is accepting requests, but not processing them, the requests are queued to print. Unless there is a further problem, once the printer is enabled, the print requests in the queue should print.