The monitoring service would only run correctly if the print server along with a connected printer have been added into the website manager. The following problems could also cause the service to fail:

• The monitoring service hasn’t initialized. You can check the service status through the system tray application.
• After adding the print server and/or printer to the web manager, the print monitoring service was not then restarted. Either restart the print server locally through the system tray application, or remotely through the web manager.
• The Windows name for the printer has been changed. Changing the printer name could disrupt the monitoring service. PrintUsage must be reconfigured to monitor the printer if it’s name has changed. Resolve this problem by adding the printer again via the management interface or revert the printer’s name back to what it was originally called.