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  1. #1
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    Sharp AR-507 blank prints

    no error code, high voltage wire intact, new toner, new developer

    Hi, my sharp AR-507 photocopier has been giving me blank prints from both photocopying or computer network printing. there is no error code showing at all. I have added new toner, changed developer, I also checked the high voltage wires, cleaned them, and they are not broken. I have also adjust the sensor gains. when I turned it on, it sounds like DC unit motor and drum is rotating. but I found the drum unit very clean after I done a few blank prints. please help. thanks a lot


  2. #2
    Trusted Tech 50+ Posts benerin's Avatar
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    Re: Sharp AR-507 blank prints

    Hi Guys,

    Before do anything, black copy occurs? Black copy many causes, we just trace one by one...


  3. #3
    Service Manager 10,000+ Posts
    Sharp AR-507 blank prints

    JustManuals's Avatar
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    Exclamation Re: Sharp AR-507 blank prints

    This Parts & Service manual can now be purchased for $12.77 and downloaded immediately after payment from

    Just Manuals ~ The Internet's largest selection of manuals ~ Instant Downloads


    Paul@justmanuals.com



  4. #4
    Service Manager 1,000+ Posts bilyahn's Avatar
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    Re: Sharp AR-507 blank prints

    Sounds like the charge unit. Not getting a C1-00? Check your trouble codes in sim 22.

    Good luck.

    Bil


  5. #5
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    Re: Sharp AR-507 blank prints

    Quote Originally Posted by bilyahn View Post
    Sounds like the charge unit. Not getting a C1-00? Check your trouble codes in sim 22.

    Good luck.

    Bil
    Thank you Bill!! C1-00 is actually the first one in sim22 trouble history list. could you please hint me what's next to do?

    thanks a million


  6. #6
    Master Of The Obvious 10,000+ Posts
    Sharp AR-507 blank prints

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    Re: Sharp AR-507 blank prints

    I think I'd start by stopping the machine mid-copy, to see if you have a good, developed latent image on the drum. If yes, you have a transfer problem.

    If no, back up further to look at developing.
    Missing primary charge creates black copies, so the implication here is that the primary charge is present. =^..^=

    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.


    blackcat: Master Of The Obvious =^..^=

  7. #7
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    Re: Sharp AR-507 blank prints

    Quote Originally Posted by blackcat4866 View Post
    I think I'd start by stopping the machine mid-copy, to see if you have a good, developed latent image on the drum. If yes, you have a transfer problem.

    If no, back up further to look at developing.
    Missing primary charge creates black copies, so the implication here is that the primary charge is present. =^..^=
    Just checked, Drum is quite clean. so it's the developing unit?
    Thanks again!!


  8. #8
    Master Of The Obvious 10,000+ Posts
    Sharp AR-507 blank prints

    blackcat4866's Avatar
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    Re: Sharp AR-507 blank prints

    Just because you're not getting a developed image does not necessarily mean the developing unit is faulty.

    For example, if there is no drive to the developing unit, there will be no developing. The drive is provided by the main drive pack in the rear of the machine. Or you could be missing the developer bias voltage. Again, no bias-no image. And there could be a problem with the developing unit itself.

    When I say "no developing" it means that the toner didn't make it to the drum, for whatever reason. It's up to you now to determine why.
    =^..^=

    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.


    blackcat: Master Of The Obvious =^..^=

  9. #9
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    Re: Sharp AR-507 blank prints

    Quote Originally Posted by blackcat4866 View Post
    Just because you're not getting a developed image does not necessarily mean the developing unit is faulty.

    For example, if there is no drive to the developing unit, there will be no developing. The drive is provided by the main drive pack in the rear of the machine. Or you could be missing the developer bias voltage. Again, no bias-no image. And there could be a problem with the developing unit itself.

    When I say "no developing" it means that the toner didn't make it to the drum, for whatever reason. It's up to you now to determine why.
    =^..^=
    Again, thanks a million for your differential diagnosis.
    When you say "main drive", does it mean the motor? so I did SIM25-1, to check the operation of the main drive, and get 107. so I guess it's functioning properly. I'm going to check bias voltage at the back of the machine.


  10. #10
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    Re: Sharp AR-507 blank prints

    Back cover is opened. How do I find out if the voltage on main charger is present?


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