This is exactly what I was taught and this is correct. Excellent response overall as well.
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How to Print true CMYK ???
- Thread starter Biggermens
- Start date
This is exactly what I was taught and this is correct. Excellent response overall as well.
What???
So what are you telling your clients with Orange and Green Roland inksets to design with CMYK? Are you telling people who are buying into the VG2 with Orange inks this as well that they should stick with CMYK for accuracy?
JoeDG
Wide format trainer and creative enthusiast
No. Note in my post I put necessarily. I was under the assumption that the original post was for a CMYK only device...and he only wanted CMYK-not extended gamut. That came from other posts!
But it depends what they're after. If you're printing something that you know is larger than the CMYK standard gamut (a photo for example-in it's original RGB format) then yes you would want to leave it as RGB and let your RIP do the conversions via color management, that is what it is there for.
But again, if you're just going for an accurate colour in a vector graphic, you would not (you can, but normally wouldn't) get that from an RGB colour...you would want to use a spot or an accurate CMYK known value.
For the VG2 there is a new color management preset and also a new spot library for the orange inks.
There is no outright correct answer to some of the dilemmas raised in this post, as there are many variables to each example...
- Was the source file the original or has it been opened and re-saved elsewhere changing the input info?
- Does the customer want vibrancy over accuracy?
- Have you profiled your media on your device...etc etc.
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ColorCrest
All around shop helper.
One can certainly design in CMYK for machines with extended ink sets and it has been done successfully for decades. The challenge for you (because you have derailed the thread with your first post immediately following the OP's) is to to explain to the internet how one is to design in RGB for a color which is outside it's gamut but still in gamut for the CMYK space of the printer.
See my previous post#28 attachments as the graphics should be all the hints you need to answer the challenge although there are plenty of other hints throughout the thread posted by knowledgable others.
The way I have achieved this is pretty simple, however I am not familiar with your rip software. Does it support spot color correction (input at the rip)?
I always create 4 generic named spot colors in Illustrator. (spot1, spot2, etc)
From the rip I do a color replace and set the values to 100% for each channel respectively.
No muck in the yellow...
As far as the "cmyk vs. rgb" argument we have had times where we had to use rgb. We had some cool artwork come in that was all vector of sky and clouds.
The clouds were gradient mesh with transparency...and when ripped as cmyk much of the data was lost. Stuff just disappeared!
We just changed the color space to rgb and everything rendered correctly. We have had similar issues with uncommon blending modes like color burn...pin light...etc.
In my opinion, if you use a print rip let IT do the conversion. Leave everything rgb for as long as possible.
I had a customer send images as 16-bit layered cmyk files. They were easily 5 times bigger than they needed to be and clogged everything up in the pipeline.
For absolutely no reason. 8-bit gives you a variation of 256 variations per channel...16-bit is 65,536 variations per channel...overkill to say the least.
Especially in our low color gamut workflow of dye sublimation.
Just my two cents.
I always create 4 generic named spot colors in Illustrator. (spot1, spot2, etc)
From the rip I do a color replace and set the values to 100% for each channel respectively.
No muck in the yellow...
As far as the "cmyk vs. rgb" argument we have had times where we had to use rgb. We had some cool artwork come in that was all vector of sky and clouds.
The clouds were gradient mesh with transparency...and when ripped as cmyk much of the data was lost. Stuff just disappeared!
We just changed the color space to rgb and everything rendered correctly. We have had similar issues with uncommon blending modes like color burn...pin light...etc.
In my opinion, if you use a print rip let IT do the conversion. Leave everything rgb for as long as possible.
I had a customer send images as 16-bit layered cmyk files. They were easily 5 times bigger than they needed to be and clogged everything up in the pipeline.
For absolutely no reason. 8-bit gives you a variation of 256 variations per channel...16-bit is 65,536 variations per channel...overkill to say the least.
Especially in our low color gamut workflow of dye sublimation.
Just my two cents.
Hi.
If you want your printer to use pure CMYK in your print where you have any, you send them as pure CMYK color and in Versaworks you click Edit > Special Color Setting. In there you add Special Colors, and then put in 100% for both input and output. When you have a file in Versaworks that contains a pure color in either C-M-Y-K you will see that under Job Settings for the spesific job, you will have an option under File Format to choose to convert Special colors to print pure. This will make the printer to use only the selected ink cartridge for the pure colors present in the file. I have found that this is the case with the profile Max impact. The black color is printing clean and less thick with this rutine.
Good luck.
Best regards
Tony
C5 Service&Repair
New Member
Holy moley.
Ok if you just want a test pattern to see each channel to print, then the fill pattern is the way to do it.
If you want to print a file and have 100% yellow print as only 100% yellow with no other colors, ,then design in CMYK, NOT RGB, and in versaworks go into the Properties button in the color management area on the Quality tab, and check the 'Preserve Primary Colors' checkbox.
Now if you create a color thats C0% M0% Y100% K0%, it will print with only 100% yellow.
Ok if you just want a test pattern to see each channel to print, then the fill pattern is the way to do it.
If you want to print a file and have 100% yellow print as only 100% yellow with no other colors, ,then design in CMYK, NOT RGB, and in versaworks go into the Properties button in the color management area on the Quality tab, and check the 'Preserve Primary Colors' checkbox.
Now if you create a color thats C0% M0% Y100% K0%, it will print with only 100% yellow.
ColorCrest
All around shop helper.
Thanks for reiterating what has been mentioned 40 posts earlier.
oliviakim
New Member
A quick tool to help you select CMYK ink values that will produce the most vibrant colors for printing.
Biggermens
New Member
What is this quick tool you speak of ??
Dont know if you got the answere yet, anyway use density control only in profile choice
niksagkram
New Member
Jim Hill
New Member
Years ago before I purchased my own printer I uses three different printer shops to do all of my work.
The one print shop I used was a small two person shop and the owner had a Masters degree in graphics and his work was always the best of any of the print shops I used.
One day I decided to show him the print work the other two shops had done for me and I lined up three graphics and were all the same image and I asked him why is always had the most vivid colors.
We talked about graphics and when I asked him about designing in RBG or CMYK he looked at me and said what colors does your new printer use and I said CYMK and he said then that is what you should be using for all of your designing.
Since I did not have a graphics degree I took his advice and that is what I have done for the past 10 years.
I realize many others may use RBG but I am very happy using CYMK colors for everything I do.
Jim
The one print shop I used was a small two person shop and the owner had a Masters degree in graphics and his work was always the best of any of the print shops I used.
One day I decided to show him the print work the other two shops had done for me and I lined up three graphics and were all the same image and I asked him why is always had the most vivid colors.
We talked about graphics and when I asked him about designing in RBG or CMYK he looked at me and said what colors does your new printer use and I said CYMK and he said then that is what you should be using for all of your designing.
Since I did not have a graphics degree I took his advice and that is what I have done for the past 10 years.
I realize many others may use RBG but I am very happy using CYMK colors for everything I do.
Jim
Biggermens
New Member
Not really, its funny how this became a big argument hehe
I kind of figured it out on my own
Do you use corel draw ???