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If the capping station is in a good condition turning the printer on (from standby) every two weeks for 5 minutes or while it cleans itself should be enough. My boss decided to flush the ink completely to be on the safe side and we lost about a full cartridge worth of ink and the same amount of...

There are very cheap manual laminators on ebay for like $100, I never use heat on my electric one anyway.

Can you avoid printed vinyl at all? Usually I apply a base color first and apply text cut vinyl over it.

It cannot be ink starvation since unidirectional should give plenty of time for the ink to get to the head but as far as I can see only blue and magenta is affected which is on one head (if my memory serves my well). Looking forward to see what the technician says.

1/check head alignment 2/print CMYK blocks, see what colors are affected 3/take off the cover from the carriage and check if dumpers have enough ink in them 4/print something with heavy coverage and see it ink tubes have air in them 5/print unidir - see if that solves the problem

So you own ~ $10.000 worth of large format printing equipment and ask such dumb questions... hmm o_O

Your marketing team works full steam I can tell that :)

I'd take a picture with my Kodak funsaver and fax it to Roland ;)

Too much ink + low heat. Try more passes or/and higher heat settings. What you see is ink gathering around dust particles as they are not absorbed by the media quick enough. You can actually see the dust in the middle of the patch.

Lol

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Wow (eco solvent user here)

Back to the original question, blueback paper is the cheapest option for billboards, I use eco solvent ink and there is no need for lamination. Lasts 6months+.

Hi Kristie, You should have done your research two years earlier as there are many many posts here about truevis being junk. If your prints are acceptable you can buy a used Mimaki CG-130 FX or similar to cut the prints, they are solid, reliable machines. Yet better try to sell the printer and...

I'm sure I could answer your question, but it's soooooooo long and detailed, nobody will read it trough.

I almost spit out my coffee :D

What about the printing area? Is it hot?

1440 dpi AND unidir will slow the printing down even further, I'd give it a try to see what effect does that give

It may sound stupid but did you actually physically check if the print area is hot? Drying area may have separate heating elements.

Easiest way is to use higher resolution, which make the head travel more. Or use unidirectional printing, both of these make the print slower allowing more time for the material to absorb ink.