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What is this knocking noise coming from...

Discussion in 'Hewlett Packard' started by VTSigns, Sep 2, 2013.

  1. VTSigns

    VTSigns Member

    345
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    18
    Jul 15, 2010
    Signville
    My L25500 has just started making a knocking noise at both ends of the printer. The carriage will go out and as soon as it starts to go back home this knocking noise occurs at both ends of the printer. Anyone had this problem with their L25500? What could be causing this? Seems to be printing just fine other than the noise. I have lubricated the rollers and carriage rail and the noise is still present. Any help would be appreciated.
     
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  2. Snydo

    Snydo Active Member

    549
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    May 1, 2008
    Mid Michigan
    I had this happen about a year ago...I used isopropyl alcohol to thoroughly clean both rails and I then lubricated heavily laying the oil in a 'squigly' pattern the length of the rails. Alot of oil. The banging vanished immediately.
     
  3. VTSigns

    VTSigns Member

    345
    12
    18
    Jul 15, 2010
    Signville
    So you cleaned the main carriage rail and then the rail where the top of the carriage rides along? I have never paid any attention to the rail at the top where the carriages rides. Is this rail suppossed to be lubricated as well? Let me know and I will give this a try.
     
  4. Snydo

    Snydo Active Member

    549
    36
    28
    May 1, 2008
    Mid Michigan
    I cleaned and lubed both rails thoroughly, but I saturated the carriage rail(the larger one) with lubricant.
     
  5. dbot

    dbot Member

    27
    0
    1
    Nov 25, 2009
    Botswana
    top rail must be lubricated along with bottom rail as part of the rail lubrication maintenance procedure every time.
     
  6. Snydo

    Snydo Active Member

    549
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    28
    May 1, 2008
    Mid Michigan
    any luck SignSpot?
     
  7. Typestries

    Typestries Very Active Member

    1,581
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    Jan 8, 2007
    NJ | VT
    I'm sure other heavy users like myself will chime in, and cleaning and lubing the rails is spot on. You will get to a point though that the head felts will become so caked with ink, that no matter how much you clean or lube it won't help much. A set of head felts is $20 and they are pretty easy to change. Make sure to soak them in oil before you install them.
     
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