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  1. #1
    Technician vidarb's Avatar
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    MX-4501 PPD2_N1 Jam

    I have a MX-4501 that jams right before the reg.roller. Sensor PPD2_N1.

    Suspecting the reg.roller dont move.

    Anyone had this problem?
    Even a broken clock is right twice a day.

  2. #2
    Service Manager 1,000+ Posts bilyahn's Avatar
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    Had a similar problem with a MX5001 and it was due to a cleaning blade flipping on the black drum. It would jam in the same place everytime and give a PPD2 code. Take out the primary transfer belt and look at your drum units to see if any of them are covered in toner.

    Good luck.

    Bil

  3. #3
    Technician vidarb's Avatar
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    Problem solved.

    The motor (RRM Drive motor) that drives the resist roller had come out of position.
    Even a broken clock is right twice a day.

  4. #4
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    PPD2_N1 jams

    This is a late reply, but for general info: the PPD2 sensor seems to fail a lot more frequently now than in the past; even though the same sensor is used in everything from the old ARM450 up to a Hercules. Often the sensor will test good, but still cause you problems.
    One trick is to activate the sensor for several seconds instead of just doing a momentary test. You will sometimes see the state begin to switch back and forth.

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