Pantone 377 C a tough color for the L360

[dypinc]

You guys try it and tell me what you think. Try it on glossy media with a solid fill at least 12" x 54"

I can get accurate color but the banding with 377 C has me puzzled. I don't see much banding this with most other colors.

 

[P Wagner]

I ran a test to reproduce the issue that you are seeing with this Pantone color (377 C); please see the attachment. I was not able to discern any banding in the color in my output. Note that this was produced on 3M IJ40C media, using a custom profile at 120 percent ink limit.

In many cases, it is more difficult for ink to bind with glossy vinyl media than matte media, and defects tend to be more readily apparent using gloss. This tends to be true for solvent and UV inksets in addition to HP Latex inks.

 

[MikePro]

I don't see much banding this with most other colors.

have you printed a test swatch to confirm all of your printheads are firing at 100%?
my $$$ is on your light cyan missing just enough nozzles for the printer to deem acceptable to continue printing without forcing you to replace.

 

[dypinc]

have you printed a test swatch to confirm all of your printheads are firing at 100%?
my $$$ is on your light cyan missing just enough nozzles for the printer to deem acceptable to continue printing without forcing you to replace.

Nozzle test looks fine. Head alignment done.

Interesting thing is when I email HP tech and they saw the output right away they dispatched a tech to install new encoder strip. Have they had bad encoder strips in the L360? I seem to have gotten that impression.

 

[dypinc]

Turns out the banding, I should say one band, is due to vacuum where the platens butt together. Lower vacuum, put a piece of tape over the joint or maybe some foam tape where the two sides meet seems to options for a solution.