Hi all.
I gotta report I'm getting the same streaking on a job I'm trying to print with my new CJV30 through Signlab.
The color is dark blue C90,M70,Y10,K20 straight CMYK with no colour correction.
I've tried 8 pass, 16 pass, hi speed, normal speed, unidirection all have the streaks.
Also if you look real closely at pic 1 you can see ghosting of the lettering which is happening before it gets to the actual lettering.
This leads me to think the data is getting corrupted somehow.
The nozzles are all firing 100% but the color varies as it prints. You can see the color difference in some of the passes while it's printing. (see pic 2).
I tried printing it through Rasterlink and it didn't streak (but the color was a lot different).
I converted it to a bitmap in Signlab and it printed smoothly. Likewise I converted the color to RGB in Signlab and it also printed perfectly.
So it's only streaking when sending a CMYK color through Signlab.
I turned on color correction CMYK profile and it still streaked although it was a different color.
So the solution for me is to choose these colors as RGB.
I printed an RGB swatch and they are all perfect as are RGB bitmaps (thankfully!).
Perhaps this is the same problem that Flexi has? It looks the same, and so far has only happened with this dark blue for me.