Xerox dc242 calibration

[Enzo]

I confirm the problem of the yellow developer. practically it is almost dust-free! once powder is added, what steps should i follow?

[Enzo]

Hello my friends. i have a problem with xerox dc242.
both prints and photocopies come out badly. it seems that the color does not stick on the sheet.
they come out with white spots. I have no idea if it's a material problem or you need to do a thorough color adjustment.
I changed the developer 4 months ago and also the ibt. the drums are original and with a residual life of 80%.
almost new fuser.
eventually, is there anyone who can explain to me step-by-step how to make an excellent color adjustment?
I have seen videos but they are different from each other.
the problem comes out especially on red.
for example yellow comes out brown.
light green comes out dark green.
red comes out almost orange. Thanks
242 bad print.jpg

[xcopytech]

Print test 11 from diagnostic mode for each color at 70% and post images here

[Enzo]

Print test 11 from diagnostic mode for each color at 70% and post images here

here is the test.
yellow has white spots.dc242 yellow.jpgdc242 red.jpgdc242 blue.jpg
blue looks like violet.
red seems to be fine