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  1. #1
    Trusted Tech 50+ Posts
    DIRTY BACKGROUND ON C552


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    DIRTY BACKGROUND ON C552

    Hi,

    I have a C552 with a light colour lining, inline to the paper path on a print out. but it only on colour print, but black print is ok.

    on testing for lattice pattern, while setting both width to zero, i get a perfect white print on Black (1PC), while selected Yellow only, all the CMY have the faint lining.


    things i have done, swap all the colour IU and Transfer unit, same result.

    so now should I change both the HV board? or is there anything else?

    while i was trying a scan the faulty print, it was too faint to be visible by the scanner.

  2. #2
    Senior Tech 100+ Posts
    DIRTY BACKGROUND ON C552

    konica7022's Avatar
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    Re: DIRTY BACKGROUND ON C552

    Quote Originally Posted by cayyell View Post
    Hi,

    I have a C552 with a light colour lining, inline to the paper path on a print out. but it only on colour print, but black print is ok.

    on testing for lattice pattern, while setting both width to zero, i get a perfect white print on Black (1PC), while selected Yellow only, all the CMY have the faint lining.


    things i have done, swap all the colour IU and Transfer unit, same result.

    so now should I change both the HV board? or is there anything else?

    while i was trying a scan the faulty print, it was too faint to be visible by the scanner.
    have you tried cleaning the image transfer belt unit?

  3. #3
    Trusted Tech 50+ Posts
    DIRTY BACKGROUND ON C552


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    Re: DIRTY BACKGROUND ON C552

    Yup, already done so. Even swap from a working spare units

  4. #4
    Service Manager 5,000+ Posts
    DIRTY BACKGROUND ON C552

    copier tech's Avatar
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    Re: DIRTY BACKGROUND ON C552

    Can you post a sample print?
    Let us eat, drink, and be merry, because tomorrow we may die!

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  5. #5
    Trusted Tech 50+ Posts
    DIRTY BACKGROUND ON C552


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    Re: DIRTY BACKGROUND ON C552

    Quote Originally Posted by copier tech View Post
    Can you post a sample print?

    i tried my best to scan it.

    the actual print have yellow and magenta lining, but the scan only show cyan lining on the top
    SKMBT_C35216032815430.pdf
    darkbackground removal.pdf
    second attached a darker background removal, but you can see the lining more visible but please ignore the dark grey background

  6. #6
    Technician
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    Re: DIRTY BACKGROUND ON C552

    Did you solve problem i've got exactly same in c220

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