iPrint is robust enough to server multiple sites and departments from a single iPrint instance (appliance or OES). However, the list of these printers can be confusing to users. It is possible to create custom lists but these are usually static and must be manually updated by the administrator.

There is an ad-hoc solution available: TTP iPrint Printer Lists. The iPrint team could implement similar functionality with much better engineering and interface elements.

For full details of this request including explanation and implementation, please see here:
http://tools.escambia.k12.fl.us/ttp/visit/iprint_printer_lists_v1_1.pdf