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  1. #1
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    Error code SC542 on MP6500

    This error code means temperature fusing problem.
    I have already changed the 3 thermostats and the 2 termistors. and the problem keeps reacurring.

    Any suggestions?


  2. #2
    School District Tech 500+ Posts schooltech's Avatar
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    I remember someone posting a TSB on updating the thermistors.

    But, what exactly are you finding when you go to the machine? Do the components seem to check out but the code keeps throwing? Are you finding a problem?

    Also, check all of the connectors on the fuser connector and receptacle, just to make sure that full contact is being made.

    Bachelor of Science in Information Technology, Comptia A+, Comptia Network+

  3. #3
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    when i check the machine everything checks out fine and still the message keeps reappearing.


  4. #4
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    did you go into service mode and reset sc code

    Reset sc code


  5. #5
    Bowdog 100+ Posts Gary Bowen's Avatar
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    Technical Service Bulletin 106 was to address this problem.

    I know from experience that the AF2051 (B163) had problems with Fuser Errors. According to Ricoh direct techs after 100K to 200K copies on a new machine the Hot Roller would start to warp (ever so slightly) because of its thin wall construction (fast warmup time). I had 2 situations where I replaced the Thermisors,Themostats and the Thermostat Holders and the problem would keep coming back; after replacig the Hot Roller the problem was resolved (both copiers had between 135K and 165K when the problem developed).

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  6. #6
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    do this

    There is a metal bracket at the back of the fuser that has one screw in it. it is the bracket that goes in between the exit unit and the fuser bend it so it touches the fuser it will keep the fuser from moving in the connecter I have seen this a lot and this will salve your problem of false sc555 and other fuser codes also make sure you don't have a flat spot in the press roller


  7. #7
    Field Supervisor 500+ Posts Fearless V K's Avatar
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    I always like to keep it simple, and I think mowpro may have nailed it with the possibility that the guy never reset the code in SP modes.

    If the code has been reset properly, and all therm's and stat's have been replaced, I would be looking for a short or faulty connection somewhere. I too have seen rear fuser connector problems, and rear fuser wires shorting to the frame when the fuser is pushed in.

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  8. #8
    School District Tech 500+ Posts schooltech's Avatar
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    You know, I always see posts about fuser codes and stuff, yet I assume that the resets are being performed.

    Although this may not be the case, I guess it can never be overlooked.

    I need to keep reminding myself of that.

    Bachelor of Science in Information Technology, Comptia A+, Comptia Network+

  9. #9
    unTrusted Tech 100+ Posts imaginemoko's Avatar
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    i suggested check your power supply line... or its connected to a voltage regulator.... flacuating voltage may cause this codes..... but basically it will reset via on/ off at sp mode....


  10. #10
    Technician DIONISIS's Avatar
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    Quote Originally Posted by Kasseiken View Post
    This error code means temperature fusing problem.
    I have already changed the 3 thermostats and the 2 termistors. and the problem keeps reacurring.

    Any suggestions?
    did you replaced hot roll recently?
    the connector bracket is it skrewed propely?
    maby the triack at the psu are damaged

    DIO-masterprint

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