HP 260 Vertical Banding

[csudman]

Not sure where to go with this and Grimco is a bit slow responding. This pic is on Avery 1005 but it happens on all vinyl medias. (Only really see it on dark heavy coverage though)

We have:
Replaced all printheads
Increased vacume in profile
Increased heat
Tried other profiles
Printhead alignment and cleaning



We are going to try some other things we say on this forum, but does anyone recognize this issue?

Thank you.

 

[danno]

I would try a different media and the same profile. If it goes away, media issue.

 

[csudman]

I would try a different media and the same profile. If it goes away, media issue.

This issue happens on all vinyl media (Havent tried paper or banner material)

 

[dypinc]

Try decreasing vacuum.

 

[csudman]

Decreasing vacuume and turning down the curing temp helped a ton. But, now the ink isn't fully curing. Its either wet or has a haze.

 

[dypinc]

I can't see how curing temps would have much effect. Drying temps maybe. If you have to keep curing temps lower then you'll have to up the passes to get the ink fully cured.

 

[Christian @ 2CT Media]

We ran our 260 at 130 dry, 208 cure for most medias... but we had to increase airflow for some materials.

How many passes are you running?