UDPrinter Galaxy MQ/MQU Printer Demonstration 2015
The Speed data varies in different computer.
Inkjet printer prints with fine ink dots, so the printing colors may be different along with the chnage of printheads. When printing with serveal printers at the same time, a difference in printing colors may exists due to a difference exist in every single printer.
But as far as we know, most for the operation is similar for different printer.