Question about Konica Minolta magicolor 2490MF Laser Printer

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Konica 2490MF After fixing the "Registration

Konica 2490MF After fixing the "Registration solenoid SD2 fault" (the printer works fine now), I get the error message "scanner unit open, close scan unit...", but it is closed... How will the mashine know it is open? Where is the sensor? an what kind? I found so far a "Reed-Switch" on top near the original glas , near keyboard-error sign, the magnetic is in the cover. This works fine as I knew. Any Idea how to fix? I have had the Autofeed cover off the main-unit to repair the SD2. After put it all together, I get that error.

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  • Hans Kuchwalek Oct 07, 2013

    Hello,
    in the meantime I found it myself. The Sensor is in the left corner of the scanner unit, it seemed to be a reed switch. Because I took the unit down from the main machine, I did not put it back in the correct way. The left corner could not close near enough.
    I made three pictures of this situation.
    Hans
    http://www.arcor.de/palb/einladung_accep...

  • Hans Kuchwalek Oct 07, 2013

    http://www.arcor.de/palb/einladung_accep...

  • Hans Kuchwalek Oct 07, 2013

    The first link has been cut off, the second should work

  • Hans Kuchwalek Oct 07, 2013

    Hans Kuchwalek
    Hello,
    in the
    meantime I found it myself. The Sensor is in the left corner of the
    scanner unit, it seemed to be a reed switch. Because I took the unit
    down from the main machine, I did not put it back in the correct way.
    The left corner could not close near enough.
    I made three pictures of this situation.
    Hans

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6ya6ya

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SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 70 Answers

SOURCE: The Error says "Cover Open Front" but it is not open

Most printers have a plastic pin on all of the covers that pushes a switch when it is closed. This then sends a signal to the printer telling it "I'm closed".

Probably the pin is broken off (quite by accident I'm sure). A solution is to push a piece of paper in the hole where the pin is, closing the switch, to fool the printer into thinking that the cover is closed. You can try this by pushing a pen point into the hole to see if the message goes out. (Don't forget to remove the paper when you open the cover. The switch is there to keep things out of the mechanism while it is running. May not hurt you but will damage the printer mechanics irreparably.)

Anything else is an error with the printer software and processor and can't be fixed easily.

Posted on Sep 02, 2008

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