Digital BW, The Print

In a message dated 9/13/06 9:50:18 PM, shileshjani@... writes:


> When used on matte papers, the PK ink has a lower density than the MK
> ink. So essentially you have in order of decreasing density MK, PK,
> and LK. Viola, that is a 3 ink set up. On Glossy (RC) papers, only PK
> and LK can be used.
> 
In order for this to work, the density of the one gray ink must be quite 
dark, as it has to take over from the photo black, similar to the way Espon light 
black takes over from either full black. This is similar to how a 
2100/2200/7600/9600 works. It is not similar to how a 2400/4800/7800/9800 or Canon iPF5000 
works with an even lighter gray ink to take over for the lightest tones; 
otherwise they must either be printed using color ink, or show grain from light 
application of the darker gray ink. There is no magic at the black end that can 
make up for not having two gray inks: that requires magic at the light gray 
end. I'll be interested to see what gray magic HP has come up with.

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com


[Non-text portions of this message have been removed]