C552 Pink Background.

[Imsdal]

Attachment 8998I have this KM C552, the problem is where is supposed to be grey is pink, and after I calibrated it will remain ok for 4 or 5 days after that it will turn pink again.
I have change the PWB-EE Assy, and the magenta IU, i have even uppgrade the firmware to the latest B8 but no use. Just a couple of minutes ago my customer call telling me that the problem is back.
Now what is the next step.
i sent some examples. Nr 0 before calibration.

Sincerley

David M

[ptrflrs]

Have you tried printing with a different driver and a different application when its doing that? I've had issues with different versions of cs3 and most adobe software.

[BIG PAPA]

If you run all your halftones how do they look? Probably not a M problem, but one of the others that is not present. I would run all halftones, at full 255 then about 125, ans 75. See how they come out.

[mo0651]

Look at sample #1 RGB black column. it should not be fading to pink. Not your magenta Iu acting up. It is the black fading off. Did the black IU dump? Whats The counters?

[Imsdal]

No, it has not dump and the black has gone like 100k

[krazeekidz3]

WOW, kinda sounds like my problem!!!

[AjitN]

Hi
It looks like magenta in highlight is high. Red strip shows magenta instead of red, this is possible if yellow is low but green dows not show high cyan. This means magenta is high. Try adjusting magenta inhighlight mode in image quality adjustment.
Ajit

[Imsdal]

I have change yellow, magenta and cyan IU and I did a calibration.
Now i wait and see what happen, i will come with info later on

David M

[Imsdal]

It´s seems that the problem were the I-units.
It´has been 3 weeks and my customer hasn´t call

David

[holmis]

I had a similar problem with two new C452:s at a customer,a printed bannerphoto with a lake looked like kind of purple water.What i did was in service mode i redused magenta one step in highlight and did a calibration. I got my customer satisfied