Sharp ARM450

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  • JDE75
    Technician
    • Apr 2007
    • 24

    Sharp ARM450

    I have copies dark at the bottom shading even though drum and developer have been replaced. Already cleaned laser unit. Any suggestions????

    Thanks in advance
    Jamie
  • choicecopyguy
    Trusted Tech

    100+ Posts
    • Mar 2006
    • 111

    #2
    Check the mag roller on DV unit, it will get coverd in buildup. Gently remove with a fine 3M pad.

    Comment

    • blackcat4866
      Master Of The Obvious

      Site Contributor
      10,000+ Posts
      • Jul 2007
      • 22666

      #3
      several possibilities...

      Have you tried running engine prints in simulation 64? If engine prints look good you can be certain that it is a scanner issue. For example, uneven light output from the exposure lamp, or mis-aligned white plate for the CCD (run a two sided copy: if one side is OK and the other is shaded you can be sure it is the white plate alignment.).

      If the engine print has the same problem perhaps a dirty thermistor is causing elevated fuser temperature and toner transferring from the dirty fuser to the copies. Is the cleaning auger intact (not twisted off)? It may look OK but when the male coupler is turned the auger may not.
      If you'd like a serious answer to your request:
      1) demonstrate that you've read the manual
      2) demonstrate that you made some attempt to fix it.
      3) if you're going to ask about jams include the jam code.
      4) if you're going to ask about an error code include the error code.
      5) You are the person onsite. Only you can make observations.

      blackcat: Master Of The Obvious =^..^=

      Comment

      • JDE75
        Technician
        • Apr 2007
        • 24

        #4
        Thanks for your help, the pad did work and the customer still hasn't calle dback in. Thanks again for all of your help.

        Comment

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