Kyocera 3252 - Yellow Drum Not Spinning, No Yellow Print

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  • Peter Zeravla
    Technician
    • Aug 2016
    • 10

    #1

    Kyocera 3252 - Yellow Drum Not Spinning, No Yellow Print

    Hi, I removed the yellow drum from my Kyocera 3252 to check it, and after putting it back, it stopped spinning. The developer is working, and I can see toner building up only where they touch, but the printer is not printing any yellow at all. Any idea why this happens?
  • Ropariva
    Senior Tech

    500+ Posts
    • Mar 2016
    • 616

    #2
    The drive dog at the rear is spring loaded and it has stuck in the disengaged position. You will need to free this up and likely replace the drum as it will have been damaged by the developer rotation. Make sure when you fit a new drum to rotate it until the drive engages. I’ve had this happen a few times so always take this precaution now.

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    • ThisPete
      Too old to care

      Site Contributor
      50+ Posts
      • Jun 2014
      • 94

      #3
      Also, the little circlip that holds the drive cog in place fails, then when you pull the drum out the cog moves too far forward and it's drive pin falls out meaning no drive is transmitted to the drum, had it a few times. It's not obvious when looking in from the front unless you know to look for it.

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      • Peter Zeravla
        Technician
        • Aug 2016
        • 10

        #4
        Thanks for the suggestions. I checked the drive dog mechanism, and it seems fine. However, the drum is still not spinning. I even tried replacing it with another drum, and the same issue persists. It’s as if the machine isn’t sending the command to move the drum. Could this be a problem with the motor coupling, a sensor, or something related to the activation signal?"


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        • KYO_OEM
          Senior Tech

          500+ Posts
          • Aug 2011
          • 652

          #5
          There is only 1 motor for driven all 3 colors drums.
          Each similar case in past would solved as Ropariva suggested. (in case that it happened like your describtion)
          If not, new main drive unit needed.
          Remove all 3 color drums, touch and turn the yellow drum coupling and compare with cyan and magenta.

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          • Peter Zeravla
            Technician
            • Aug 2016
            • 10

            #6
            In that case, I’m not sure what’s happening. The magenta drum is still working fine. First, the yellow drum stopped working. Then, after testing with the cyan drum, the same issue happened. Now, only magenta and black are working. Any idea what could be causing this?

            Comment

            • KYO_OEM
              Senior Tech

              500+ Posts
              • Aug 2011
              • 652

              #7
              At first i would try to use a little bit grease on the couplings from all 4 drums.
              Now both couplings from ye + cy are not working probably.

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