how can customize the colors of canon c9070pro

[Phil B.]

20181107122254
20181107122236

i have this problem with my printer canon ir adv c9070pro.
i have change about 5 yellow developing unit and drum unit.
when i change it just print a few pages about 200 pages and goes again yellow like in document i have sent you.
any idea why that happens

start your own thread! not the same issues!