Make sure the targets are indeed untagged documents! That, along with the Bitmap tab is key to sending the numbers through the product without applying a profile (doesn't matter what color paper profile is selected in the popup). IF the file is tagged, the bitmap tab setting is invalidated, you apply profile to data.
Yes, I've checked that. I've now measured the chart again and made an average from three different readings - still the same problem. I've also printed out new charts but they are identical in color to the one I've used for measuring. I've also checked the spectrophotometer using the diagnostic software.
I guess I will have to contact Colorbyte about this (to bad I didn't experience this during the support period).
And about the "R" profiles, here's what the manual says: "Important Note: Some profiles are of a special type, containing “recipes” for different combinations of inks and papers that require additional information in the profile to print correctly. These profiles will have the letter R at the end of the name, just before the light temperature designation (such as RF3, or RDAY). Using a profile with a recipe in it WILL affect the calibration print. If profiles with “R” at the end of the name are available in your profile listing, and you are not sure if you should be using one when
outputting your target, call or email ColorByte Software to confirm. " (The last sentence has to do with if you send your target to CB to have a profile created.)
And just to be clear about this: I've used the "Select Correct Printer Profile" instead.
Anyhow, lot's of thanks to all who have contributed to this thread. I will repeat the profiling process for my 7800 and see if I can see any improvements, otherwise I will contact Colorbyte. Maybe a specific R2400-problem?