|---------------------------------------------------------------------|
 |                              workstation                            |
 |                                                                     |
 | queue with filter                                                   |
 |                                                                     |
 |   print job ----( print filter )----> printer-specific data      |
 |                                                      |              |
 |------------------------------------------------------|--------------|
                                                        |
                                               ( data transmission ) 
                                                        |
 |------------------------------------------------------|--------------|
 |                              print server box        |              |
 |                                                      v              |
 |                                           printer-specific data     |
 |                                                      |              |
 |------------------------------------------------------|--------------|
                                                        |
                                               ( data transmission )
                                                        |
                                                        v
 |---------------------------------------------------------------------|
 |                              printer                                |
 |---------------------------------------------------------------------|