You can monitor key Windows & Print Spooler services running on the local server out of the box. In addition, custom services can also be added, monitored & automatically restarted.
  

 
Print monitoring allows you to check for & be alerted to errors on local printers such as paper jams, out of paper errors, attention required etc. 
  

 
Printer queue monitoring & print monitoring allows you to check for & be alerted to problems associated with a local print queue - e.g. excessively high queue length, print job size (higher than expected no. pages or job size) etc.
  

 
By monitoring files & monitoring directories, you can be alerted to changes in files, directory structure or the underlying file system. For example, files added, deleted, when files have been updated or not updated, directory/file count, directory/file sizes etc.
   

 
Out of the box you can monitor the threshold of important Windows & Print Spooler performance counters such as CPU usage, queue lengths, print job errors etc. 
  

 
Sentry-go allows you to monitor messages written to the Windows Event Logs based on error type, event ID, source or keywords & phrases within the text. 
 

 
In addition to Event Logs, log file monitoring can easily be performed using Sentry-go. Using this, you can also monitor the entries written to text-based log files such as those used for custom applications, based on keywords or phrases within the text. 
 

 
To print, the print spooler needs adequate free disk space. Sentry-go can check this for you, clearing down temporary files automatically if free space becomes limited.