Need Help Uneveness in color on Vs640 6 colors

[Alex C]

Hi Team,
Hope you are doing fine.
Need help, dealing with a Vs-640 6 color eco max ink.
The color at the start of print is not the same at the end of the print.
The printer uses CMYKLcLm versaworks 5.5.1 version Firmware 5.10

Notice that the Cyan test on the left is not the same as the right one. What can be causing this?
Nozzles are firing fine . New Print Head
Dampers replaced
captop new.

Thanks for helping.

 

[balstestrat]

First of all your printhead is not properly adjusted. Or some other issue with the feed.
2nd have you considered that to be just a optical illusion? Have you printed something and you have a real issue?

 

[Alex C]

First of all your printhead is not properly adjusted. Or some other issue with the feed.
2nd have you considered that to be just a optical illusion? Have you printed something and you have a real issue?

Hi Balstestrat,
You are right calibration need to be fine tuned.

2ndly, I've ask several person and had the same answer.
the cyan on the left looks like fading.
The original file is more than 2metres long with full background, this is where we notice the change in color/tone on the printout.

yours

 

[balstestrat]

Is it original Roland printhead?
And you set the head rank for it?