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  1. #1
    Field Supervisor 500+ Posts
    MP4054 Reduce paper in tray 1 to the limit mark...


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    MP4054 Reduce paper in tray 1 to the limit mark...

    First time seeing this message, paper tray was only half full.
    Tried it with completely full, 1/2 full and almost empty and the message comes and goes randomly.
    Swapped out paper tray from a working machine and still gives message.
    Turned paper from 11x8 1/2 to 8 1/2x 11 and the message has not come back yet.
    Also there is no paper stuck behind the drawer which I have seen may cause this.

    Has anyone seen this before or is it a known issue?
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  2. #2
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    MP4054 Reduce paper in tray 1 to the limit mark...

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    Re: MP4054 Reduce paper in tray 1 to the limit mark...

    My guess is that there is something broken on either the tray 1 feed module or paper lift assembly. Possibly the mount for one of the sensors. Could also be a connector disconnected or a broken wire.

  3. #3
    Senior Tech. 2,500+ Posts NeoMatrix's Avatar
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    Re: MP4054 Reduce paper in tray 1 to the limit mark...

    Paper dust in the upper limit sensor causing it to toggle????
    Swap tray1 & tray2 sensor as a test.
    Inauguration to the "AI cancel-culture" fraternity 1997...
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  4. #4
    Field Supervisor 500+ Posts
    MP4054 Reduce paper in tray 1 to the limit mark...


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    Re: MP4054 Reduce paper in tray 1 to the limit mark...

    Yes I already blew out the sensors but swapping them would be a good test.
    Odd that it hasn’t faulted with the paper in the other direction.
    Last edited by copyaction; 05-17-2019 at 04:24 AM.

  5. #5
    Field Supervisor 500+ Posts
    MP4054 Reduce paper in tray 1 to the limit mark...


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    Re: MP4054 Reduce paper in tray 1 to the limit mark...

    Being a new model to me, I have to admit ignorance as to where the tray paper level detection is performed.
    Can someone point me in the right direction.
    I did notice that when the fault occurs the display shows tray 1 being completely full even though the actual level was less than half.

  6. #6
    Professional Moron 2,500+ Posts TonerMunkeh's Avatar
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    Re: MP4054 Reduce paper in tray 1 to the limit mark...

    There's an actuator in the feed station that can be knocked out of place and cause silly problems like this.
    It's 106 miles to Chicago. We've got a full tank of gas, half a pack of cigarettes, it's dark and we're wearing sunglasses.

    Hit it.

  7. #7
    Field Supervisor 500+ Posts
    MP4054 Reduce paper in tray 1 to the limit mark...


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    Re: MP4054 Reduce paper in tray 1 to the limit mark...

    Quote Originally Posted by TonerMunkeh View Post
    There's an actuator in the feed station that can be knocked out of place and cause silly problems like this.
    So now I really messed it up.
    I took out the feed unit for tray 1 to check for something dislodged or out of place and when I reinstalled it now it just just continually tries to lift the paper without stopping.
    does anyone know if the paper empty sensor also controls the upper limit?

  8. #8
    SanDiegoCopierRepair.com 1,000+ Posts
    MP4054 Reduce paper in tray 1 to the limit mark...

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    Re: MP4054 Reduce paper in tray 1 to the limit mark...

    Quote Originally Posted by copyaction View Post
    So now I really messed it up.
    I took out the feed unit for tray 1 to check for something dislodged or out of place and when I reinstalled it now it just just continually tries to lift the paper without stopping.
    does anyone know if the paper empty sensor also controls the upper limit?
    Part# D2022735 PAPER FEED UNIT:NO.1:ASSY

    Those paper end (empty) and paper limit sensors are different sensors. See attached pdf for sensor layout.

    4054 paper feed unit 1 sensors.pdf

    I'll research it and give you a call if I think of something.
    Anything can be made to work if you fiddle with it long enough- San Diego Copier Repair.com

  9. #9
    SanDiegoCopierRepair.com 1,000+ Posts
    MP4054 Reduce paper in tray 1 to the limit mark...

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    Re: MP4054 Reduce paper in tray 1 to the limit mark...

    For your reference: Here's a great overhead view of those sensors from the service manual

    4045 series Paper end sensor and paper limit sensors 2.pdf

    If that machine continuously tries to lift it's probably not a wire. My bet is the actuator for that paper end sensor was knocked loose and now is not mounted properly and never triggers the end sensor or sensor is bad.

    4054 series actuator paper end.pdf

    Hope this helps.
    Last edited by blazebusiness; 05-18-2019 at 02:45 AM.
    Anything can be made to work if you fiddle with it long enough- San Diego Copier Repair.com

  10. #10
    Field Supervisor 500+ Posts
    MP4054 Reduce paper in tray 1 to the limit mark...


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    Re: MP4054 Reduce paper in tray 1 to the limit mark...

    Thanks Robert it was the limit sensor, replaced it and it works.

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