Matte Poster Paper Black level

[ABBOTARTDEPT]

I found a roll of presentation grade matte poster paper. Was tinkering with printing jpeg images on it. looks great except for the black levels. they sort of gray out a bit. I usually print onto decal or banner material. If i get the paper looking right i can start outputing posters. Any tips on darkening the black?

Using FLEXI 7.4
Mimaki jv3-160

 

[oakcitysigns]

Are you printing black with only 100% K value? If so, try printing black at C:25% M:25% Y:25% K:100%.

 

[ABBOTARTDEPT]

Not sure where to change that setting. Im new at this position and have been using flexi and the mimaki for a couple months. I used to be one of the studio artists until this position opened. I got a handle on the things i use most often. But ive never messed with the ink mix levels.

 

[ABBOTARTDEPT]

Also forgot to add, the black is dull only when printing flat jpegs or bmps. if i use vector art it looks fine.

 

[oakcitysigns]

Ah, well, I'm afraid I can't help. I'm not all that familiar with Flexi, especially Flexi RIP. I was thinking of changing the settings of vector objects in your design program. My only other suggestion would be to try profiles for several different medias, if you haven't already. Sorry I can't be of much help, but good luck.

 

[bob]

Also forgot to add, the black is dull only when printing flat jpegs or bmps. if i use vector art it looks fine.

To what are your rendering intents set?

 

[ABBOTARTDEPT]

CMYK:
Bitmap: relative colormetric
Vector: spot color
Text: Spot color
Gradient: Relative colormetric

 

[bob]

CMYK:
Bitmap: relative colormetric
Vector: spot color
Text: Spot color
Gradient: Relative colormetric

Try setting bitmap to 'perceptual' and gradient to 'Spot'. Perceptual generally gives a more robust and predictable bitmap and Spot yields far more predictable gradients.

 

[ABBOTARTDEPT]

ill try that. thanks!