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  1. #21
    Master Of The Obvious 10,000+ Posts
    error code  L4 - 31

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    Re: error code L4 - 31

    The fans you're concerned with should start up in 6-2 > CFM-ICU/HDD. Take off the back cover so that you can see them operate. =^..^=

    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 =^..^=

  2. #22
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    Re: error code L4 - 31

    Yes, I ran sim 6-2. You'll see 4 options.....3 of them are working (you hear starting somewere fans, but option 4 nothing. And the fans are never rotating,
    The fans are now accessable, the right cabinet is open, also the topcover has been removed with the filter housing.
    You can see the fans, and give them a little help with your fingers, but nothing happens, see picture below, the POFM_R and L.
    I checked the connector on top, no power.
    The connector DF-18 .... pin 6,7,11,8,9 ...... no power at all.

    Question: were is connector CN13 located?



    fans view.jpg


  3. #23
    Master Of The Obvious 10,000+ Posts
    error code  L4 - 31

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    Re: error code L4 - 31

    My apologies. I thought that was L4-30. L4-31 is exit section fan motors: 6-2 > CFM-U4

    Your diagram is from the document feeder. See page 99 (6-44 of the service manual). This is the diagram you want.

    L4-30.JPG

    =^..^=

    Last edited by blackcat4866; 09-04-2016 at 10:02 PM.
    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 =^..^=

  4. #24
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    Re: error code L4 - 31

    now I'm confused.

    see both pics, I assumed this is the correct part:
    in the technical manual, section O, page O-1 and O-2 is told the removal of the paper output section.
    I followed this instructions, cpt 3A and removed the unit.....2 fans. Now everthing is back into the machine, but left the exhaust duct cover outside, so I can move the fans by hand.

    your picture?....I do not recognise this. three fans? it is a mx3501N
    pic1.jpg pic2.jpg


  5. #25
    Master Of The Obvious 10,000+ Posts
    error code  L4 - 31

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    Re: error code L4 - 31

    Quote Originally Posted by wim View Post
    now I'm confused.

    ... your picture?....I do not recognise this. three fans? it is a mx3501N
    pic1.jpg pic2.jpg
    Curiously this thread does not mention a model number. Did you mention some model number? I didn't think so.

    The error codes often differ between different models. Do not assume that they are the same, or that I would psychically know what model Sharp MFP that you have.

    The manual reference in my previous post is for a Dragon I (AR-M550N). =^..^=

    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 =^..^=

  6. #26
    Service Manager 250+ Posts nottoosharp's Avatar
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    Re: error code L4 - 31

    Quote Originally Posted by blackcat4866 View Post
    Curiously this thread does not mention a model number. Did you mention some model number? I didn't think so.

    The error codes often differ between different models. Do not assume that they are the same, or that I would psychically know what model Sharp MFP that you have.

    The manual reference in my previous post is for a Dragon I (AR-M550N). =^..^=
    3501


    Sent from my iPhone using Tapatalk


  7. #27
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    Re: error code L4 - 31

    I'm sorry that I didn't mentioned more clearly the brand/modelnumber SHARP MX3501N......but in post #1 is the name of the picture: touch-screen MX3501N.

    This evening (if I have time and the mood) I will swap one of those fans with the HDD cooling fan.........see what happens.
    Right now, I have to work elsewere, not in the office.

    Thanks so far!


  8. #28
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    Re: error code L4 - 31

    This morning I tried the following:

    remove the HDD cooling fan, that one is running, I saw that.
    remove one of the paper output cooling fan.
    installed the original HDD cooling fan on the place of the "faulty" paper output cooling fan.
    installed the original paper output cooling fan behind the HDD.

    power up the machine......same error code: L4-31.
    the HDD cooling fan is running well........BOTH paper output cooling fans are dead, not running.
    Ran sim 6-2......both fans are not running, but the HDD fan is running well.

    right now, I'm pretty sure that both fans are oke......but the problem is the power, or control elektronics for the fans.
    I measured no 24 V on the terminal of the fans, but 24V are at the terminal of the HDD fan.


    is there somwere a fuse?
    were is the control board located for both fans?

    regards.


  9. #29
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    Re: error code L4 - 31

    Is this a frontier series? Usually it is fan on top of Rightside door assembly. Can clean door contacts for fix most of time.


  10. #30
    Service Manager 250+ Posts SwisSeV's Avatar
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    Re: error code L4 - 31

    It's probably the toner hopper fan.


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