MP 402 blurry prints

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  • dchirnitch
    Technician
    • Oct 2014
    • 13

    [CQ] MP 402 blurry prints

    Anybody come across this? tried new AIO drum, XF roller, cleaned up LED bar..sane image on drum...

    Sent from my SM-G950U using Tapatalk
  • Phil B.
    Field Supervisor

    10,000+ Posts
    • Jul 2016
    • 22808

    #2
    Re: MP 402 blurry prints

    Originally posted by dchirnitch
    Anybody come across this? tried new AIO drum, XF roller, cleaned up LED bar..sane image on drum...

    Sent from my SM-G950U using Tapatalk
    looks like you have a mis-registration in the speed of the drum/dev combo. it would help if you posted the values of parts / bias settings..

    Comment

    • davel
      Technician

      1,000+ Posts
      • Oct 2011
      • 1045

      #3
      Re: MP 402 blurry prints

      I would look at the LED positioning, maybe distance between LED and drum affects focus,does not look like image is stretched only in one direction.

      Comment

      • anothertech
        Service Manager

        Site Contributor
        1,000+ Posts
        • Nov 2007
        • 1715

        #4
        Re: MP 402 blurry prints

        Those LED arrays get knocked out of position and they are not easy to get back into proper position. Sometimes the plastic pins on the ends break off, they are cheap to replace, just kinda hard to get everything back into position.

        Comment

        • jonhiker
          Senior Tech

          500+ Posts
          • Apr 2010
          • 661

          #5
          Re: MP 402 blurry prints

          Originally posted by anothertech
          Those LED arrays get knocked out of position and they are not easy to get back into proper position. Sometimes the plastic pins on the ends break off, they are cheap to replace, just kinda hard to get everything back into position.
          agree with this. had one that had some damage to the door linkage on both sides, gave this image due to the LED array out of whack. had to re-align and then replacre the linkage.

          Comment

          • Oliverca
            Junior Member
            • Aug 2019
            • 2

            #6
            Re: MP 402 blurry prints

            This issue may occur if the nozzle of your printer is over-heated. Try finding the sweet spot of your build plate to get a perfect print. This may help you with your problem.

            Comment

            • davel
              Technician

              1,000+ Posts
              • Oct 2011
              • 1045

              #7
              Re: MP 402 blurry prints

              Originally posted by Oliverca
              This issue may occur if the nozzle of your printer is over-heated. Try finding the sweet spot of your build plate to get a perfect print. This may help you with your problem.
              If you have no idea how this printer works do not post. MP 402 does not have nozzles it is a laser printer.

              Comment

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