C452 Colour Issues

[RRodgers]

Mid run changes in color is a problem, color changes from week to week are usually lack of calibration. I looked at what you posted (err glanced) it does seem like Magenta might be a tad heavy in the highlight area's. Have you tried just changing out the IU for Magenta? Course remember... just cuz magenta show's up may NOT be the problem... it might be the only color that is working properly. but... by looking at what you posted it does look like cyan is being reproduced properly. Weird as I didn't see a Yellow gradiant.

[Stirton.M]

Ok, picture is worth a thousand words.

I agree with RRodgers, this looks to be more like an IU related problem. There could be a problem with the IPB as well, it might be worth your time to change out that board if you have one available. Don't order it if you have none available, but if you have a spare machine and can do a temporary swap, that will help eliminate that section and rule out most of the electronics related. Though I highly doubt it, the PRCB may also be at issue.

RRodgers, it irks me that KM did not adopt a similar test page to the Fiery, it would help to know what each component colour was doing outside of the process.

[Imsdal]

I am wondering what did you do to fix the problem Marsh2?