Question about Xerox DocuColor 12 Printer

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Gradient Problem on a DOCUCOLOR 12

Hello Guys,
I have a strange problem ! My DC12 started printing very ugly ! when I print a raster with smooth gradients, the gradient seems like cut in the middle. In the FIERY test page, 
the CMYK scale is crazy , so is the RGB! the 20% density is darker than 30 %. I tried calibration with X-rite densitomer. It helped a little for the CYAN and YELLOW, but MAGENTA AND BLACK are still with problem. Any suggestions! I tried a cobra rip - the same problem ! No one engineer in my town can't help, because they haven't seen such problem ! You have experience, plase advice !
here is sample for my words !

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  • Rob Rodgers Dec 04, 2007

    We're having the same problem, but with our DCCS 50

  • Ivo Fotev Dec 05, 2007

    As far as the tests I've done, it seems that the problem is in some of the boards. I tried the VCL board on another machine, it was OK, so the problem is not in the VCL. My suggestiton is that the problem board is the board where the RIP cable connects the machine. It is a small one on the back of the copier/printer. But to be sure I have to buy another machine and to test on it, which I intend to to soon. Very, very ugly situation .... :(((

  • Anonymous Dec 06, 2007

    We just solved the problem ! The VCL extension board is FAULTY - the board in which the fiery cable goes in !!!! 100 %



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Hy i had a similar problem some time ago.
You need to go to then xerox enginer tools menu
Then go to the MAX SETUP
Then toner concentration adjust
And then you have to rise up the toner concentration on low and medium print.
a couple of tries and maybe your problem will be fix.

Posted on Jan 10, 2008


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