Digital BW, The Print

> Hi, everyone, I'd like to know how to make curve for the glop channel,
> I'm using epson 2400 and qtr, with datacolor densitometer.
> How can I properly limitate the glop?

I use 'Load curve' on the GLOP channel, then click 'Point list' to add
points manually. For the UT7 inkset I used 0 60 100 30. This will add
60% GLOP to white going down in a straight line to 30% in the blacks.
You probably need to experiment with your inkset and see what works.
Often more GLOP is needed in the highlights than the shadows. You also
have to watch out so you don't oversaturate the paper with ink.
Mottling and loss of detail is usually a sign of too much ink.
Remember to reduce any whites in the images you print from 255 to 254
as 255 will not have any GLOP applied no matter what you to.