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  1. #1
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    Gradation in 6501

    HAi,
    My 6501 prints are comiing like blured.The customer is complaining that is a gradation problem,what is gradation?In photographs the face was coming steps,like colors are not mixing(only in photograpgs and images not in texts)I was replaced drums,developers,chargers.adjusted color reg and auto gamma.I was calibrating using kotak control patches.
    Plese help me to solve
    thanks in advance
    LEV


  2. #2
    Trusted Tech 50+ Posts sbillis's Avatar
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    try to calibrate with spectometer. not with kodak color patches.

    do you have any samples?


  3. #3
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    After changing the consumables, did you follow the steps from service manual?

    Drum, Transfer Belt and Fusing Unit Firmware Reset - http://www.bizhubreset.com
    Drum and Toner Chip Reset - http://www.chipreset.eu
    Transfer Belt and Fusing Unit Reset Kit - http://www.resetkit.eu

  4. #4
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    You need to adjust your gammas offsets


  5. #5
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    Re: Gradation in 6501

    Hi
    this was my old post and after i cant get a chance to see the machine.now i got the same tone jumping in 6501 with ic408,i calibrated with spectrometer after replacing the drum,charger,developer,machine run only 1.5lac.from manual i found this can solve by gamma offset adjustment.How i can doit and whether it can solve.the problem is color from high side to low side is not smooth,it will be in steps

    thanx from levi


  6. #6
    Technician maccenterpc's Avatar
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    Re: Gradation in 6501

    Check the second transfer roll or make adjustments to compensate for the second transfer. With software SW 1-0 ON, this setting appears in the paper setting on the main panel of the machine.

    Then, adjust (adjust operation run) with four options. After, make calibration via Spectrofotometer I1

    Maccenter

  7. #7
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    Re: Gradation in 6501

    Thanx Mac,
    Ill try and come back,whether the gamma offset adjustment can create any other problem?
    why the colorbands are appearing while printing the gray in color mode.If print from gray scale mode the colorbands are not appearing,but the gradation is not smooth.Is this the limitation of IC408 compare to Ic305.Which color set up will be better for the files with gray and color?Any problem in printing from PDF compare to coreldraw or photoshop?

    Sorry lot of questions.Can help me please!!!!!

    levi


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