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  1. #1
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    Post jam code "fuser"

    MX-3050N serial appear jam code "fuser" means the machine has detected a paper twined around fuser belt unit.

    "Fuser" appears when the temperature difference between non-contacting main thermistor and the contacting sub thermistor installed to non-paper feed section is over a certain degree.
    this trouble code comes out in the following conditions:
    - When the paper is winding around something;
    - When the belt is damaged;

  2. #2
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    jam code "fuser"

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    Re: jam code "fuser"

    Quote Originally Posted by wpjm View Post
    MX-3050N serial appear jam code "fuser" means the machine has detected a paper twined around fuser belt unit.

    "Fuser" appears when the temperature difference between non-contacting main thermistor and the contacting sub thermistor installed to non-paper feed section is over a certain degree.
    this trouble code comes out in the following conditions:
    - When the paper is winding around something;
    - When the belt is damaged;
    OK, what are you asking? Are you getting this error code, or what ???
    "You can't trust your eyes, if your mind is out of focus" --

  3. #3
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    Re: jam code "fuser"

    Quote Originally Posted by ZOOTECH View Post
    OK, what are you asking? Are you getting this error code, or what ???
    It is a experince in our field.
    This jam code can not find in the service manual.
    If machine have appear jam code "fuser",sometimes you need change the fusing belt unit.

  4. #4
    The Wolf 2,500+ Posts mojorolla's Avatar
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    Re: jam code "fuser"

    Had this on a few Sharps over the years, most recently a 904.
    Replace the fuser lamp. In the last scenario, the lamp is made of 3 filaments, only 2 were illuminating. The usual symptom of this is machine will attempt to warm and after 3 minutes or so, multiple jams are displayed without any paper being fed.


    Failing to plan is planning to fail!!!

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    Re: jam code "fuser"

    I have the same thing happening on a sharp mx8090 1st thing in the morning, it'll get what we call a "ghost jam" because it shows a jam on screen but nothing in the machine. You have to open all the covers and then it'll reset. I've replaced almost every pwb, fusing unit, and all door switches, updated firmware but still no luck. Have you found a fix for this?

  6. #6
    Senior Tech 100+ Posts Prints Charming's Avatar
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    Re: jam code "fuser"

    Quote Originally Posted by joegerstner311 View Post
    I have the same thing happening on a sharp mx8090 1st thing in the morning, it'll get what we call a "ghost jam" because it shows a jam on screen but nothing in the machine. You have to open all the covers and then it'll reset. I've replaced almost every pwb, fusing unit, and all door switches, updated firmware but still no luck. Have you found a fix for this?
    If you're sure the Fuser Unit is OK (no belt damage, no paper caught between belt & thermistors), it would be caused by either a power supply issue or problem HL Board.
    The MX8090 requires a dedicated power outlet with no other equipment on the same circuit breaker. If you have the engine + finisher and/or air-feed trays on the same CB, you will get this problem (and others) on a regular basis, even overnight or first job in the morning trouble codes being generated. The engine must be on it's own circuit.
    The HL Board has AC power coming in from power cable 2. The HL Board directly powers the Fuser Unit. A problem on the HL Board will cause a FUSER error, especially on a cold Fuser Unit first thing in the morning.

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