Java Programming

Hi,
I'm currently working on a web app that will need to print to various remote printers across a network. I've been investigating some options and came across a 3rd party IPP PrintServer package for Java Print Service called Jipsi - https://sourceforge.net/projects/jipsi/.
I'm still relatively new to Java and definitely don't have a full grasp on JPS or IPP yet, so any help would be graciously appreciated. I have a few questions:

1. Is it necessary to have all printers already set up through IPP in whichever Windows or Linux Server I'll run the webapp on. (i.e. printers added in windows printer configuration or cups)? Or is it possible to print through IPP (using Java Print Services) without any OS management?

2. We may try to dynamically store printer information in a database. Does anyone know if there's a way to bypass any windows/linux print managers and print directly to an IP address?

Basically, we want users to be able to plug a computer in the network, tell the webapp that printers ip, and then be able to print.

I've tried messing around with the printer service attributes and using a Destination URI, with the IP address as the URI, as a stipulation when using JPS to search printers. So far, though, no luck. Any help, experience, or input would be great. Thank you, Matt