Heidelberg QM 46 Sheet monitoring device

Discussion in 'Heidelberg Printing Presses' started by Olivia Hansen, Jun 13, 2022.

  1. Olivia Hansen

    Olivia Hansen Member

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    I think my sheet monitoring device is going bad on my QM. It keeps reading there is a jam in the front of the machine before I even run it, and when there is clearly nothing jamming in the area. I have cleaned the device itself and cleaned the barrier but it still keeps happening. What can I do? I also have no idea where to order parts from. I didn't get very much training when I took over the position of running this machine.
     
  2. mrheidelberg

    mrheidelberg Senior Member

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    Sometimes if the plate were the sensor sits isn't lined up correctly, it can cause this issue.
     
  3. Olivia Hansen

    Olivia Hansen Member

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    This is going to sound like a dumb question and I'm sorry. But I've taken it out to clean it a few times because when I clean up from the second color for some reason the ink spills down and all over the machine. So I've had to take out the sensor and the plate a few times since I started to clean them up. I put the plate back in and make sure everything tightens up the way it should cause from what I know it really only goes in one way and the two screws on the sides have to line up. Am I wrong, is there a specific way your suppose to be able to line it up? The sensor also reads there is a jam even when I take it out and there is nothing underneath it. When I clean the bottom of the sensor it does go away for a little but then comes right back.
     
  4. mrheidelberg

    mrheidelberg Senior Member

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    It should when you put it back in position itself if you give it a wiggle (technical term !!)

    Have you checked the sensor to see if it has a hairline crack in it ?
     

  5. Olivia Hansen

    Olivia Hansen Member

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    update, replaced the sensor with one from an older model, now works amazing
     
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