Usually blotchy means ink not being sufficiently absorbed by the paper.
Thus bad ink, bad paper or too much ink. Given just one ink I'd tend toward
maybe some wrong in the ink mixing.
I'd try the basic supplied curves and see what you get. If definitely different than
before (which is hard to tell since there are lots of variables) I suspect the ink.
Paul Roark's workflow has been used a lot so should be pretty solid.
Roy
On Tuesday, July 1, 2014, paulmwhiting@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
On Tuesday, July 1, 2014, paulmwhiting@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
Well, Pete, no luck so far. I tried reducing the ink limit to several values, 50, 40, 30... then I noticed Paul suggests leaving the limit field blank for the color channels, but that didn't help either. Still getting blotchy upper squares (at the dark end). I mentioned the Y cart was low, just topped it off, that didn't help.
Do you think I should replace the cart? The ones I'm using now are Jon Cone's, the version number on the chip is 6.0. I do have a couple of spare sets, one with 6.0 chips and one with 6.3. I'm reluctant to use them because the set of Jon's that I'm using are special edition 6.0 chips - Jon specified to the manufacturer that they be manually resettable. A feature I really like.
Roy, I wonder if you're following this thread... do you have any ideas? (I am registered by the way, but I can't find my original papers, nor do I see a registration number in my help file.)
A few months are I was getting a very clean Calibration printout. The printer was not used for a few months but I ran a nozzle check every week or so with excellent results.
Paul
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