QTR-Quadtone RIP

--- In QuadtoneRIP@yahoogroups.com, Howard Shaw <glassman@...> wrote:
>
> The way I do it is to determine where the 100% LLK matches the LK and 
> then apply that percentage to the LK to K percentage. For example:
> 
> LK 100% matches K 45%
> LLK matches LK 30%
> 
> Therefore limits:
> K 100%
> LK 45%
> LLK 13.5% (30% x 45)
> 
> I'd be interested to hear other methods.

I use a different approach.  My 2200 only has two blacks - MK and LK.
 I do not set the default ink limit at all; instead, I set the MK
limit at 70% based on measurements.

My LK is about 25% of BK in Density, so that's what I set.  However, I
do not set the limit for LK, as I want the printer to use LK wherever
possible, to minimize the graininess.

I then apply linearization, and get very good results.