Omitting Clear Coat printing

Open Discussion
1

My print work flow mirrors my old silver days. I like test prints. To do that I print quarter sized 8.5 x 11 images and move them around the sheet or half sized and move top to bottom etc. When I print, I get clear coat over the whole sheet and that ruins the sheet for the next print. Is there a way to turn the ClearCoat channel off.? I ask that knowing the Matte curves don’t print CC. or get the CC to print over just the inked image?

2

GO and GCO are usually in the LLK channel. The first line of LLK channel after # LLK curve will have a number in it pertaining to the amount of GCO printing on the paper white. Change it to 0 and it will print everywhere but the paper and specular highlights. Use a text editor like BBEDIT or SimpleText. WinPad works well too.’

best,

Jon

3

I should know that not giving the needed amount of info in a question means the answer I get probably won’t solve the problem. So let me be more specific. I’m printing Pro Inkset on a 3880 using QuadTone Rip. Digging a little deeper into your Piezo info I’ve found the “Community Edition for Mac” and installed it. That has the folder of Profiles that QuadTone has already installed. There is also an install script folder, and a folder for NoCGO-Curves. I’ve never used Terminal but I will guess that I can copy the “installer script” in terminal and get it to run and it will install some files - I"m not sure which ones but I’ll guess the curves already installed that are in the folder. There are 3 additional folders that are specific to GCO. One of the 3 is NoGCO-Curves and that folder seems to be what I would want. I need direction to get those loaded. I can make a guess what to do and then you can tell me if that’s correct or not and if not what to do. Since I have the curves installed when I installed QuadTone RIP I don’t want to install them again so I could put them in a folder label it Regular or something and then replace them with the NoCGO curves. Will the installer script install the NoCGO curves? That would give me curves for both with and without CGO? and that would be good. Obviously I’m out on the edge of my Mac knowledge. Appreciate the help I can get.

4

QuadTone RIP does not install any Piezography Curves. It only installs QTR curves for other brands of ink such as EPSON color inks.

We do provide documentation when you download and install Piezography Community Edition. It is placed in a directory called Documentation in the Piezography folder in your Applications folder. If you launch “Getting Started with Piezography.url” you can navigate to Software Installation and because the curves you are interested in installing are part of Community Edition, navigate to Community Edition which is a sub heading under Software Installation.

Reading that will inform you how Piezography Curves are installed. You would have had to have done this when you initially installed your system or otherwise you would not be able to use any of the Piezography curves. if you didn’t, then you have been using QuadTone RIP curves for other ink brands such as EPSON color inks.

Kind regards,

Jon

5

Searching the forum deeper I found an old post with a similar question to mine -profiles won’t install. the answer recommended reinstalling QTR. The profiles installed after that.
I appreciate your taking the time to answer.