QTR-Quadtone RIP

I confirm Roy's suggestion. I tried these inks and Quadtone RIP last 
week with the posterization result. One of the cartridges had a blocked 
vent.

You can push the cartridges apart and peel off the part of plastic still 
covering the vent.

http://www.piezography.com/support/

Might help. My cartridges were slightly different than described, but 
easier to take apart rather than more difficult.

I tested on the R800. I'm still undecided as to whether or not this is 
how I will print b/w, but ...

Daniel


Roy Harrington wrote:

> On Sunday, October 29, 2006, at 10:09 AM, benmarks2003 wrote:
> 
>  > Hey all-I am trying to get K7 inks up and running with QTR on a Windows
>  > machine. Nozzle tests show clear, test subjects are 8-bit grayscale
>  > tiffs with good tonal range. I am trying for a good proof on Epson HW
>  > Matte and have so far had terrible posterization in tghe mid-tones.
> 
> Posterization with the K7 inks is almost always due to one or more
> carts not
> working properly. It's pretty easy of overlook a totally missing
> nozzle check
> so I'd check that again. With new carts that show no ink output its
> usually
> because the vent hole is clogged. When you pull the tab sometimes it
> does not come completely off.