Printer Server Device is to eliminate the need for computer to be turn "ON" all the time and to print for other computer whichever one is "ON" and want to access printing to particular printer within the same network regardless of operating system.
This is sound like a driver dependent kind of printer.
If you have Mutoh, Mimaki, Roland printers on the network; then you would need each print server device installed on each one of this large format printer!
Also each large format printer required to have printer's driver which communicate to the port on the Print Server.
On each computer on the network, it will require to install all of the printers driver (each BRAND of large formate printer driver )
Plus, each RIP engine for each BRAND of printer will need to be installed on EACH computer on the network, and the RIP engine will need to be configure to rip, and output to the port that connected to the corresponding print-server for the particular large format printer in-use.
For some large format printer such as HP and EPSON they have legacy driver for window OS to communicate directly to printer without the RIP. If printing job required RIP, then it need to be installed, and also have to be configured to send to the correct port corresponding to the print-server device of the appropriate printer. For example, EPSON 7000,9000,10000 series do not have RIP engine; if you use RIP to print large photo, you will need to install RIP software on each computer on the network.
For some large format printer such as Roland printers, they have also a driver for window (Postscript Driver) which need to be installed on each computer on the network and configured so that the driver on each computer on the network talk to the correct IP port which connect to the printer-server connect to the Roland printer. This meaning if you want to print to your Roland printer from any application such MS word, IE explorer, Quickbook, etc. But be real, who want to sent these documents to your Roland unless you have a meeting printing charts or something; but printing from these application required a serious paper size configuration. If you plan to print 4'x8' artwork, then you will need to install Roland's rip such as ColorChoice, ColorRIP or Versawork on EACH COMPUTER ON THE NETWORK to be able to print from any computer on the network.
For some printer such as Mimaki, it use USB port. Again, if you printing 4'x8' artwork from one of your computer on the network; then you will need to install RIP engine on that computer. And configure the RIP to talk to the print-server port. Most of the expensive RIP will have this ability to send RIP data to specific port.
Printing from many computers usually involved the network administration and installation, and configuration time.