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Author Topic: Suddenly getting magenta cast in Epson ABW mode  (Read 9313 times)
davidh
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« on: May 27, 2015, 03:13:52 AM »

Hi all,
haven't been around in ages cause I have been doing just fine ...until this week!
I have been printing exclusively with Qimage Ult for 5 years on an Epson 7900. While I don't do very much B&W, I have printed many very nice B&W neutral tone prints on Epson Exhibition Fiber using the ABW mode with no problems at all.
I am suddenly getting a magenta cast on all my grey scale and RGB B&W prints.I have reinstalled the Epson 7900 driver in case it was corrupted in some manner, and I spent the better part of today trying every configuration of the Epson ABW driver and Qimage settings and it seems the only way I can eliminate the cast is to add a negative 35 points (adding cyan), into the horizontal tone setting in the advanced settings for ABW. My nozzle checks are fine, and my color prints are fine.which leads me to believe that it is ABW itself that is the problem. I even had a B&W job saved, which had printed fine before, and it is also getting the Magenta cast. I have tried printing on Premium Luster, and even plain office paper with the same results.
I have researched this on LuLa, and it seems others find the ABW mode wonky also.
What bothers me is I never had these problems before, and I'm stumped on this one.
Any Ideas?

 
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Fred A
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« Reply #1 on: May 27, 2015, 09:49:15 AM »

Quote
I am suddenly getting a magenta cast on all my grey scale and RGB B&W prints.I have reinstalled the Epson 7900 driver in case it was corrupted in some manner, and I spent the better part of today trying every configuration of the Epson ABW driver and Qimage settings and it seems the only way I can eliminate the cast is to add a negative 35 points (adding cyan), into the horizontal tone setting in the advanced settings for ABW. My nozzle checks are fine, and my color prints are fine.which leads me to believe that it is ABW itself that is the problem. I even had a B&W job saved, which had printed fine before, and it is also getting the Magenta cast. I have tried printing on Premium Luster, and even plain office paper with the same results.
I have researched this on LuLa, and it seems others find the ABW mode wonky also.
What bothers me is I never had these problems before, and I'm stumped on this one.
Any Ideas?

Hi David
The story screams out for a Nozzle Clean.
Let me put it this way.... there is a difference between a Nozzle Check and a Nozzle Clean.
It's the same difference between getting a book on dating a girl, and going on a date with a girl.

So let's waste a little ink... at least do an Unclogger run with Mike's Qimage Unclogger.
I would do the strongest Nozzle clean the driver offers also..

I would also make a test print using teh B&W predefined filter in Qimage with the driver in No Color Adjustment mode and the normal color profile that you would use for the paper with a color priint. See if that prints with the same cast.
The object being to be able to decide if it's the ABW that is wonky or the Nozzles are clogged.

Let us know.
Fred
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davidh
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« Reply #2 on: May 27, 2015, 03:36:23 PM »

Thanks Fred,
I had a low LC cart and a will do as you say.I had tried with "printer manages color" turning off Qimage controls. I had a feeling it might be Cyan channel related, as it is the compliment to magenta and adding it extra with the toning in ABW did somewhat resolve it.
Busy framing today, will try as soon as I can!
David
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davidh
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« Reply #3 on: May 31, 2015, 11:21:29 PM »


Had a chance yesterday to run an Unclog Cyan and Blue pattern perfect!
And Black pattern perfect.
Removed the driver and re installed it in case it was a corruption problem .
Will have to do some test prints soon when I get another chance, to see if this continues.

 
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davidh
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« Reply #4 on: June 03, 2015, 03:18:44 AM »

Perfect nozzle check and printing color just fine today  Grin
will have to try another ABW test .. just don't have much time to test it yet .
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Fred A
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« Reply #5 on: June 03, 2015, 08:56:10 AM »

Quote
Perfect nozzle check and printing color just fine today  Grin
will have to try another ABW test .. just don't have much time to test it yet .

The ABW test should be fi9ne too.

Thanks for keeping us apprised of the latest developments.

Fred
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