[QUOTE=Dana-IJM;463]Hi Ray Ray~
You must install the Quad-7900 printer model (doesn’t have to be specifically “K7” to flush the channels, since you are using color ink) by running the install.command for that printer model, in order to use QTR’s calibration mode to purge the two channels you accidentally installed the wrong ink into. If you print thru the Epson driver and not as I instructed thru QTR’s calibration mode, then you will not be printing pure ink from the specific channels you wish to correct, so it won’t be as effective or quick.
Best regards~ Dana :)[/QUOTE]
Hi Again Dana,
FYI it turns out that my Epson 7900 is not listed in the profile scripts of the version of QRT that will run on my OS (10.5.8) The latest V of QTR does list it
but it requires hard & software I do not have.
The interesting thing is that the color swatch from the calibration print, converted to a generic gray profile must require more LLK because the problem is gradually clearing up.
I’ve run several 24"x 24" prints on a paper setting that doesn’t require a PK > MK swap. The printer is set to [control the color] with perceptual intent. The other settings for the driver are: standard proofing paper, 720 dpi.
I know the other channels are running too, but by selecting that type of paper (which I just happen to have ) and letting the printer “decide” it’s working.
Half way thru the second sheet a very subtle and gradual change in tone occurred blending from unwanted LK, back to the desired lighter LLK hue.
The moral of the story?
Don’t try to work when hungry & tired – have your head screwed on straight when changing ink carts.
What an interesting intro for me to QTR and the possibility of getting into Jon’s specialized B&W printing…
Thank you again- the forum is a terrific resource.