Digital BW, The Print

On 12-04-27 1:45 AM, "Ernst Dinkla" <e.dinkla@...> wrote:

> On 04/27/2012 03:42 AM, Paul wrote:
> 
>> I was surprised that the PK to LK step was 1:1 as opposed to closer to
>> 30% PK. I did not make an LLK dilution, which, again, is typically
>> 30-33% LK, remainder clear base.
> 
> If you compared it to diluting HP PK, I always had the impression that
> the HP PK and the other Vivera greys are quite dense compared to other
> ink set grey inks. One of the reasons could be that the substitution of
> CMY grey mixes with a heavier grey etc reduces ink lay down more. There
> has to be a balance what is visually acceptable and best for the paper
> coating but the Z3100 in total has hardly any composite greys in color
> prints left and its droplets vary between 4 and 6 picoliter. Drying time
> is fast, color stabilises fast and that is also desired for the internal
> calibration + profiling if done in one run.

As another point of reference Canon's GY, their LK equivalent from Lucia EX
(6300/8300), measures 44% of their PK ink (BK). This is based on an ink load
of 75% on Canson Platine, which is Dmax for that paper. Again, the density
is greater than one might expect.

Terry.