Where you install EveryonePrint is completely up to you. Some prefer to separate tasks on different servers, and others prefer to combine all print related tasks on one print server. 

EveryonePrint can be a resource demanding application, as the server typically handle many of the tasks done by several workstations like converting an office document to a printable version, therefore it's essential that it is fitted with proper sufficient CPU and memory to handle the print volume.