Need Help VG2 Banding on Cyan

Yaser

New Member
Hi all,

In the last few days, my machine has been banding all types of blue--mainly light blue "cyan" as-well as dark blue. I have tried both CMYK colors and Roland colors.


So far I have done:
Nozzle tests
Medium Cleaning
Manual Cleaning
Media Gap Adjustment
Calibration
Drained Wiper Tray Fluid
Cleaned Wiper
Cleaned Wiper Pad


From the looks of the nozzle test, everything seems fine! I'm baffled. We haven't changed any printing settings.
nmozzlde.jpg
banding.jpg
 

Yaser

New Member
Tested a different media type, same issue. No physical damage to printheads. All other colors are fine. Have tried different shades of blue aswell.
 

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There looks to be a tiny glitch in your feed calibration test print just above where the two boxes meet. I wonder if this is the source of the issue?
It is absolute pure cyan print or is it possible there is a small amount of black in there? Not really sure if the feed calibration uses any more than the K channel.
 

Yaser

New Member
There looks to be a tiny glitch in your feed calibration test print just above where the two boxes meet. I wonder if this is the source of the issue?
It is absolute pure cyan print or is it possible there is a small amount of black in there? Not really sure if the feed calibration uses any more than the K channel.

Pure CMYK Cyan. I have restarted the machine several times and loaded / unloaded media. The feed calibration is the same. Think it may be time to call a technician.
 
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