There are many different ways to set up the color going from your ink bay to your print head. Above you will see the tab where you change it in your program. However, in that program gives you an idea of the different configurations. Best option is the way the ink bay is set up - YMCK-WWWW. That means from the left to right ON THE PRINT HEAD, the colors would be Yellow, Magenta, Cyan, and then Black.
Generally, it also goes - from left to right - 1-2-3-4-5-6-7-8