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  1. #1
    Senior Tech 100+ Posts inutelkamo's Avatar
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    INeo +6500 Bizhub C6500 color image problem

    Hi..

    Im having this discoloration problem. its located on the 1/4 side of the leading edge.
    check the image for me..

    P_20160418_110730.jpg

    see it? the less yellow area..

    ive done some pattern 53 TM with 255 density and it cant be seen..
    but tested it with 75 density and here's what ive got...

    S28C-6e16042610520_0001.jpgS28C-6e16042610520_0002.jpgS28C-6e16042610520_0003.jpgS28C-6e16042610520_0004.jpg

    BTW, leading edges are on the right side of the image.

    thanx guys
    more power.

  2. #2
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    Re: INeo +6500 Bizhub C6500 color image problem

    Looks like Drums.

  3. #3
    Senior Tech 100+ Posts inutelkamo's Avatar
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    Re: INeo +6500 Bizhub C6500 color image problem

    Quote Originally Posted by garuda View Post
    Looks like Drums.
    Hi,

    I dont think so.. if the problem is in the drum, the faulty part would rotate again to lower part.. and half tone patterns will give different output since theyve got different drum. but, they all printed same light and dark area..

    i was thinking its form the intermediate belt unit.. but my belt unit is only at 24%..

  4. #4
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    Re: INeo +6500 Bizhub C6500 color image problem

    How about developer? Or developing unit?

  5. #5
    Senior Tech 100+ Posts inutelkamo's Avatar
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    Re: INeo +6500 Bizhub C6500 color image problem

    Quote Originally Posted by LinxTech View Post
    How about developer? Or developing unit?
    all dev and dev units are below 50%, all drums are at most 75%,
    charging units max at 80%.

    tahnx

  6. #6
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    Re: INeo +6500 Bizhub C6500 color image problem

    Have you tried to swap yellow dev unit with another color?

  7. #7
    Senior Tech 100+ Posts inutelkamo's Avatar
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    Re: INeo +6500 Bizhub C6500 color image problem

    Quote Originally Posted by LinxTech View Post
    Have you tried to swap yellow dev unit with another color?
    YEs.. all posible test were done..
    swap drum and charges..
    the only thing ive never been done so far is to replace with new intermediet belt unit.

  8. #8
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    Re: INeo +6500 Bizhub C6500 color image problem

    Hmmm...

    Second transfer roller (low)?

    Paper setting?

  9. #9
    Senior Tech 250+ Posts Mick01's Avatar
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    Re: INeo +6500 Bizhub C6500 color image problem

    Hi,
    Looks to me like you have a density balance issue. Newer models (C6000/C1070) have an adjustment procedure to combat this. No such luck with this model though. I have attached a document that outlines what can be done to overcome this.
    Attached Files Attached Files

  10. #10
    Trusted Tech 50+ Posts service_man's Avatar
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    Re: INeo +6500 Bizhub C6500 color image problem

    Try to change charging unit, i change it on 25% to 80%, because is very dirty and makes problem with quality color.

    Wich type of paper your use?
    If you use the KUNZDRUCK Offset paper, maybe you have humidity in paper, and all problem is in that.

    Did you set on humidity in service mode in dip sw? Did you see, how much is humidity in your space?

    I think, that your problem is Paper od Charging unit

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