Digital BW, The Print

Hi Paul
Thanks for the reply. The C and M are the same ink. The LC and LM should be the same, but are slightly different. This could just be a change from batch to batch.

I have loaded the carts, flushed out the heads using the direct flush method, 2cc of Windex each. A couple of cleaning cycles and its looking ok.

I have scanned the separations at 70% limit here.
http://www.flickr.com/photos/35706661@N08/6173979213/in/photostream/
Looking down at the 100% end of the separations, the inks seems to change away from neutral grey. It that how it is supposed to be?

The 21step linearised grey here
http://www.flickr.com/photos/35706661@N08/6173979471/in/photostream/
You can see the change in grey tone around 45/50/50%. The lighter Y takes over from there down. There are some odd colour shifts at the lighter ends which are not there on the original. I must re-profile the scanner.

I have an IT8 target with the 24 step greyscale at the bottom. Is that a linear scale? can I use that greyscale to make an icc?

Cheers
Greg Nixon



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul" <roark.paul@...> wrote:
>
> "Greg" <gregnixon@> wrote:
> >
> ...
> > You can see the RGB scan here
> > http://www.flickr.com/photos/35706661@N08/6166077071/in/photostream
> 
> 
> That could be the right inkset.  I'd go ahead and load the carts.
> 
> 
> > Do you have to flush the Claria inks from a 1400 before fitting the UTFS carts?
> 
> 
> I doubt it.  I've had Claria & Noritsu (same dyes) inks in the 1400 with MIS inks for some time. (The old time, e.g., 1280, dyes and HP dyes are a totally different matter.  They are very incompatible with MIS inks.)
> 
> > Will an initial fill sequence be enough to flush out the Claria inks?
> 
> No.  Do a couple cleanings and print Purge6 pages to be sure the colors are out of there.  It takes very little high gamut color to affect the new inkset hues.
> 
> 
> Paul
> www.PaulRoark.com
>