C1 Color Displacement - Urgent !!!

[pga]

Dear all, i facing 1 issue on C1. When customer want to print some fonts in white and background is full magenta 90 %, Y 100%, Cyan 22.5% solid, the fonts will show yellow at some portion.
I had changed the Drum unit, primary grid plate, primary & pre-transfer corona wire. what should i do on it. The machine is MPDL kit.
Pls advise on it. Thnks

[pga]

Dear all, i just changed Y, M, Bk developer / starter and ITB belt. The problem still occur

[ReproKev]

Edit - after re-reading it looks like your working on an Imagepress C1 and not a c3200/3220 with a C1 imagapass like I thought. Sorry, I have no experience on the Imagepress C1.

[Guest]

Dear all, i facing 1 issue on C1. When customer want to print some fonts in white and background is full magenta 90 %, Y 100%, Cyan 22.5% solid, the fonts will show yellow at some portion.
I had changed the Drum unit, primary grid plate, primary & pre-transfer corona wire. what should i do on it. The machine is MPDL kit.
Pls advise on it. Thnks

Try clearing D-Con but first print out a P-Print so that you ca reinput the values for D-Con. If that don't do it try replacing the transfer belt its probably slipping. The life expectancy is 70K.

[pga]

Thanks for replied. Yesterday i had changed Yellow, Magenta, BK starter and the ITB belt changed last week. Drum now also brand new.
I also clearing DC-Con't and re-key back all value. Today i print the Type 31 and check on it. It seen fine. no color registration issue