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Need Help mimaki ujv55 Black ink is light and not black

Roniz 1

New Member
Printing on clearview and the black is coming out brown and orange, looks like no cyan is making it through but all the print heads are working.

wondering if it is lack of pressure in lines....

it also prints black on white material but not so much on clearview.

have been getting banding on heavy areas as well goes away after normal clean but it comes back after awhile.

we have had it dialed in once or twice but it just goes back to a weak black.

any ideas would be helpful.

Boss is convinced the mimaki ujv55 is a lemon.
 

Roniz 1

New Member
Nozzle checks are good, and printheads are good.

100% K in greyscale, print quality is good.

just not rich
 

papabud

Lone Wolf
i would set up a print swatch with only 100%k and 0%cmy
run a length of this and see if your black starts to fade. this will check to make sure there is proper ink flow. you can try it with the other colors also
 

Rogar

Industrial discussion to improve my industry
i would set up a print swatch with only 100%k and 0%cmy
run a length of this and see if your black starts to fade. this will check to make sure there is proper ink flow. you can try it with the other colors also
How to measure 100%k and 0%cmy
 
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