QTR-Quadtone RIP

Dominic wrote:
> --- 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.
> 

Sorry, I used the wrong terminology - where I said limit I meant density.

I guess effectively you are setting a 100% ink limit on the LK. When you 
say LK is 25% of MK do you mean LK on your 100% or 70% calibration strip?

Howard