holes in printing

[john2k20]

i print a photo on transparant acrylic / plexi.
now when i am ready printing i can see through some verry small holes when i hold it before a light. so i think it might be dust orso . but when i print over it again teh holes stay . so what is the problem there? i have an roland lef2 200..

 

[netsol]

i would guess that if you do a nozzle check, there is something missing?

 

[Andy D]

If you put down too much ink at once, it tends to pool up around micro imperfections, leaving a clear spot in the middle.

 

[netsol]

good to kow, andy

i never touched an LEF

so then, this seems like the need for a new profile, or just setting lower ink limits, i would think.

 

[SignMeUpGraphics]

Do you have a photo you can share?

 

[john2k20]

Do you have a photo you can share?

 

[john2k20]

If you put down too much ink at once, it tends to pool up around micro imperfections, leaving a clear spot in the middle.

how do you print les ink then ?? i first print a white layer then the color

 

[balstestrat]

Those seem like there was something or something hit that. There's only a couple of them on a board?

 

[john2k20]

Those seem like there was something or something hit that. There's only a couple of them on a board?

yes the board is not full of em no its just a few and in different sizes. and what should it have hit??

 

[balstestrat]

That is a really good question. You know that material is very static after you remove the protective plastic. It's possible it can have a small part of plastic or dust there that prevents the ink placement and flies away after you take the piece out.
If you get more of that you need to make absolutely sure there is nothing on that and also check the bottom of the carriage that there is no nothing there that could drop down or something.
Follow the printing and see what's going on.

 

[john2k20]

That is a really good question. You know that material is very static after you remove the protective plastic. It's possible it can have a small part of plastic or dust there that prevents the ink placement and flies away after you take the piece out.
If you get more of that you need to make absolutely sure there is nothing on that and also check the bottom of the carriage that there is no nothing there that could drop down or something.
Follow the printing and see what's going on.

ok now comes the wierd part i cleanet acryl good before printing . now i did the same photo only a little bit smaller . and there was the spot again on the exact same place in the photo. now its only the one spot so cleaning acrylic might go a bit better but the same spot on the same place what doe that say ? not much to see on the image itself

 

[Gino]

How about a totally different file ?? Are you also using the correct profile ??

 

[john2k20]

How about a totally different file ?? Are you also using the correct profile ??

what profile you mean ? color profile ?

 

[Boudica]

what profile you mean ? color profile ?

The media profile in your RIP