Bad magenta printing on Roland VS 640

[Ricardo Gonzalez]

Hi Guys,

I 've been experiencing some bad printing whenever the magenta needs to be used. Its like there is no definition on that color. I have put an image with Red and purple next to a green to show the difference.

Nozzle check is perfect though, not a missing or deflected nozzle

thanks!

 

[Pewter0000]

Whats your heat at?

 

[Ricardo Gonzalez]

I am using the ICC profile for the vinyl, 42 heater and 45 dryer. Not sure if Versaworks is taking these numbers or the machine's default

 

[PrepressDude]

Would re-profiling that media and setting a different ink limit help?

 

[Baz]

Media is cold so you will get that pattern on certain colors.
Very noticeable when you print small things.

My VS-540 is set to max heat settings 99% of times.
Only when i print on something that does not have a backer lining do i lower heat settings.
(Banner materials, papers, etc...)

 

[Ricardo Gonzalez]

Thanks for the replies! that was actually the issue. I loaded the ICC profile in Versaworks, but it was not setting the heating in the machine. So I manually put the correct values in the printer and now the quality is as expected.

 

[Jester1167]

I believe that is called dot gain when colors bleed together and create a pattern like that. With heavy ink loads, and or not enough drying time the ink drops clump together and form that pattern. Used to have that problem a lot with an Avery profile printing browns and hunter greens.