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  1. #1
    Technician
    Bizhub 185 Interesting printout issue

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    Exclamation Bizhub 185 Interesting printout issue

    I got this issue i never seen before and i cant get it to print normaly again.
    On a text page it seems like theres a uneven toner density, but when i print the test page from service mode it shows some interesting patterns. (test page attached)
    I`ve tried to clean the laser unit, clean the whole copier, replaced the OPC cylinder, replaced the wiper blade, replaced the transfer roller. Tried to change Vg Ig voltages. Nothing seems to help.
    Can please someone help me?
    I need this copier to get working ASAP

    Scan.pdf

  2. #2
    Senior Tech 250+ Posts
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    Re: Bizhub 185 Interesting printout issue

    Looks like a transfer problem. Try stopping the machine during a copy and see if you have a good image on the drum.

  3. #3
    Certified Konica Expert 2,500+ Posts
    Bizhub 185 Interesting printout issue

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    Re: Bizhub 185 Interesting printout issue

    looks like what happens when generic toner is used.
    can you confirm OEM toner or dirt in a bottle?

  4. #4
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    Bizhub 185 Interesting printout issue

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    Re: Bizhub 185 Interesting printout issue

    It's a original toner.

  5. #5
    Certified Konica Expert 2,500+ Posts
    Bizhub 185 Interesting printout issue

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    Re: Bizhub 185 Interesting printout issue

    you said you replaced the drum, did you replace the developer too? try to always replace them as a set.

  6. #6
    Technician
    Bizhub 185 Interesting printout issue

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    Re: Bizhub 185 Interesting printout issue

    Yes did that too. And did a auto adjust atdc. No change
    Stopping mid print with the same test page - 2018 02 12 09 20 01 — imgbb.com
    Last edited by Obtex; 02-12-2018 at 08:58 AM.

  7. #7
    Technician
    Bizhub 185 Interesting printout issue

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    Re: Bizhub 185 Interesting printout issue

    Quote Originally Posted by Flash View Post
    Looks like a transfer problem. Try stopping the machine during a copy and see if you have a good image on the drum.


    With the same test page.
    Ive replaced the transfer roller assembly... still this

  8. #8
    Technician
    Bizhub 185 Interesting printout issue

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    Re: Bizhub 185 Interesting printout issue

    Anyone?

  9. #9
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    Re: Bizhub 185 Interesting printout issue

    Definitely looks like a transfer issue. The lower part of the drum (before contact with the paper) is solid black but is spotty after that, so not all the toner is being transferred to the paper. Check the transfer roll, contacts & voltage.

  10. #10
    Technician
    Bizhub 185 Interesting printout issue

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    Re: Bizhub 185 Interesting printout issue

    I replaced the transfer roller, cleaned the spiky strip with alcohol , checked the connections

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