Epson P9000 commercial Edition switches violet out for LLK ink.

Hello all,

My printer is an Epson P9000 commercial edition, it is filled with Violet ink instead of LLK ink. This has created two problems. The color on this printer is super saturated. The other problem is that I can no longer use Epson Advanced black and white which I am using for pure B&W prints.
I am hoping that I can just switch the violet out for LLK ink and that will fix my issue with an adjustment program that can LLK/V ink change.
Does anyone know how to do that?