Need Help What is this crap?

[eahicks]

Off of my L260, printed 2 banners on it yesterday, no issue. Today - this.


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[Joe House]

Which direction is that going? What does the nozzle test look like?

 

[XtremeXccessories]

Plasticizors coming to the surface of the banner material, usually means old stock. Did you print on the same roll as yesterday?

 

[eahicks]

Plasticizors coming to the surface of the banner material, usually means old stock. Did you print on the same roll as yesterday?

That's what I was saying....printed on this same roll of banner yesterday. Didn't do this. Nozzle test is fine. I haven't seen this issue since using Ultraflex years ago. This is GSG Starprint banner.

 

[Dan360]

That's the pattern the rollers that feed the material into the print zone leave when a roll is contaminated with something. ie plasticizers or something else.

Or your rollers could have something on them, but I've never seen that happen.

If it's a double sided material, sometimes the other side won't have this problem.

 

[Gino]

Looks like my old television set on a bad winter day when the antennas weren't working none too good.

 

[XtremeXccessories]

It's almost certainly the material, not sure why it would be fine one day and not the next. Maybe the banners yesterday were lighter and it wasn't as noticeable?

Cleaning the surface before printing with isopropyl alcohol will clear it up, but it's a huge pain. If it's newer stock (to me) I send it back, but if it's been sitting around for 8 or 9 months I'll just toss it, not worth the hassle for how cheap banner is.

If you search the HP forum for "wave" or something similar there are lots of posts of people having this problem.

 

[chafro]

It's the material it's a common problem when using latex with some cheap brands or old materials.

Seen that many times when trying different banner brands.


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[brycesteiner]

Just tell the customer that you came up with a new "retro" design and thought it would be great for them to have something so unique.

 

[AF]

Run some cheap engineering paper through the machine to clean the plasticizer off the rollers.

 

[dale911]

I've had that problem on the latex with heavier banner materials. 18oz Heytex did it. The reason it is worse at the beginning is due to the preheating. The heat pulls the plasticizers to the surface causing that problem. That's why it almost goes away after that. You can try turning the heat down or lower pass count to get it through the heat faster. I solved it by running the banners on the solvent printer.


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