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  1. #21
    Senior Tech 100+ Posts
    What does this Print out mean?

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    Re: What does this Print out mean?

    Quote Originally Posted by REGSIS View Post
    So, have you changed HV1 board or not?

    P.S. just trying to help!

    Your help is very much appreciated bro.... i changed the HV 2 unite that did not make any difference(i guess hv 2 is for color units)

    i will go there tomorrow and change the HV 1 unit as well and then update

    thanks

  2. #22
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    What does this Print out mean?

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    Re: What does this Print out mean?

    Quote Originally Posted by ricoh_rockstar View Post
    Maybe you can try changing the transfer roller, or the black cartridge.
    transfer roller will effect the color output too, plus black toner was almost out i already changed a week ago and cyan toner as well

    mostly it should be faulty HV 1 .. we shell find out tommarow

  3. #23
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    Re: What does this Print out mean?

    Quote Originally Posted by konica7022 View Post
    Your help is very much appreciated bro.... i changed the HV 2 unite that did not make any difference(i guess hv 2 is for color units)

    i will go there tomorrow and change the HV 1 unit as well and then update

    thanks
    I don't know which one is for what, but HV goes on drums, developing units (magnet rollers), transfer belt's transfer rollers and 2nd transfer roller. So HV2 could be for transfer and HV1 could be for drums (just guessing), anyway you should check both boars.

    Solid black means only one thing: black drum is not charging. Since you eliminate drum as a cause of a failure. HV board(s) is next step.
    Could also be the wire which connect HV board and black drum but it's less probable.

  4. #24
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    What does this Print out mean?


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    Re: What does this Print out mean?

    Not too familiar with the KM model numbers but isn't this the copier with seperate black drum and dev but complete IU's for the CMY? Had a couple of these years back where the locking screw/chassis thread was u/s and another with the shutter mechanism was damaged - both allow the dev unit to 'creep' towards the front door, partially or totally disconnecting the unit. Is there a pile of black toner lying around the drum/dev unit?

  5. #25
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    Re: What does this Print out mean?

    This could be toner issue as well.
    Replace DV unit and install new OEM toner cartridge, Drum & Belt units are already replaced.
    Fuser & PH will not give such problems unless toner is faulty.

    Hope this helps

  6. #26
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    What does this Print out mean?

    konica7022's Avatar
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    Re: What does this Print out mean?

    Changed HV 1 board
    still no difference

  7. #27
    Self Employed 1,000+ Posts D_L_P's Avatar
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    Re: What does this Print out mean?

    Quote Originally Posted by konica7022 View Post
    Effects only black
    TB is ok
    Same Black IU if swapped with other machine works fine

    But every Good working black IU that i put in this machine (Bizhub c552) after some time start give black like this
    Attachment 36917
    Sky shoot
    Seen this before. Completely remove drum/developer. Look inside toward the laser window and there will be a pile of toner on the rail. The window will be clean but the toner can pile up high enough on the frame to interfere with the laser. Gl

  8. #28
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    Re: What does this Print out mean?

    Quote Originally Posted by konica7022 View Post
    Changed HV 1 board
    still no difference
    So you did the following:
    - drum unit OK you tested it on another machine and drum from other machine on faulty one.
    - checked developing unit for scatered toner/developer.
    - replaced HV boards.

    You mentioned that you tested black IU on another machine, have you tried only drum unit or dev unit also?

    Try to check HV wires from HV boards to drum charger and developing unit for continuity.
    Check HV contacts/springs for dirt or defect.

  9. #29
    Senior Tech 100+ Posts
    What does this Print out mean?

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    Re: What does this Print out mean?

    I gave up, scrapped the machine if anyone here wants it for the Monster Shredders then they can have it

  10. #30
    Self Employed 1,000+ Posts D_L_P's Avatar
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    Re: What does this Print out mean?

    Quote Originally Posted by konica7022 View Post
    I gave up, scrapped the machine if anyone here wants it for the Monster Shredders then they can have it
    Did you check the frame for a pile of toner? I've seen that before.

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