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  1. #11
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    Re: C224e image problem

    Quote Originally Posted by tsbservice View Post
    Haven't seen this failure exactly but anytime would rely on Albonline experience.
    jwai swap PH unit with known good working one. Let us know.
    Yup, I try to swap PH unit for test, hope can be fixed.

  2. #12
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    Re: C224e image problem

    Quote Originally Posted by allan View Post
    Print and post half tones. You yellow is still a problem.

    P5 IDCS error because of missing yellow.
    P8 yellow not developing all the way.
    P21 registration failure because of missing yellow.

    Hope its not pulling all the yellow toner and dev from your new tank. (check waste box for yellow toner).
    Looks in the sample like there is something contaminating the side of the charge unit on the yellow drum.
    Attached is half tone pattern.
    Before I saw it, tried Y drum and Y developing unit, cleaned PH unit ( polygon mirror, mirrors inside, windows on cover ), checked transfer unit, no luck.
    Attached Files Attached Files

  3. #13
    Service Manager 1,000+ Posts
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    Re: C224e image problem

    Quote Originally Posted by jwai View Post
    Attached is half tone pattern.
    Before I saw it, tried Y drum and Y developing unit, cleaned PH unit ( polygon mirror, mirrors inside, windows on cover ), checked transfer unit, no luck.

    what does the image on the xfer belt look like? seeing your print outs i'd say this machine could use all new supplies.

  4. #14
    Service Manager 1,000+ Posts Gift's Avatar
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    Re: C224e image problem

    Try interrupting the test print and check if the density looks OK on the drum / transfer belt..

    If the error is visible on the drum and you already swapped the yellow DV/drum. The laser might be faulty or you missed a spot while you cleaned it.

  5. #15
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    Re: C224e image problem

    Yup I solved it by replaced print head unit.
    Thank you all for advice.

  6. #16
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    Re: C224e image problem

    the customer use a period they called image not good.
    i observed the C image problem, like before Y problem.
    got a cyan copy and print cyan halftone pattern they are normal.
    last time i replaced print head, it will cause of same problem or other else?
    Attached Files Attached Files

  7. #17
    Service Manager 5,000+ Posts
    C224e image problem

    copier tech's Avatar
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    Re: C224e image problem

    Quote Originally Posted by jwai View Post
    Hello,

    One customer called print quality no good.
    I got test print the pattern is so strange, G 100% to 80% changed blue, one yellow block missed, and yellow edged.
    The machine displayed P5, P8, P21.
    I tried to replace Y drum, Y developing unit, checked transfer unit and print head unit but still same.

    Any ideas about this case?
    Are you using genuine Konica Minolta toner ?
    Let us eat, drink, and be merry, because tomorrow we may die!

    For all your firmware & service manual needs please visit us at:

    www.copierfirmware.co.uk - www.printerfirmware.co.uk




  8. #18
    Senior Tech 250+ Posts
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    Re: C224e image problem

    Quote Originally Posted by copier tech View Post
    Are you using genuine Konica Minolta toner ?
    Yes, genuine toner.
    last time i replaced PH unit and solved Y problem, few months later similar issue occurred but this time is C.

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