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Laserjet 4L Code 52

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    Laserjet 4L Code 52

    Pulled an old beast out of storage (HP Laserjet 4L)... was intermittenly having issues but I was able to print test pages with some success.

    Brought it home, and I keep getting service error code 52, which is described as:

    A temporary error has occurred.
    – Power cycle the printer.
    The scanner assembly is improperly fitted.
    There is a scanner cable problem.
    The laser scanner assembly is defective.
    The DC controller PCA is defective.
    Source:

    http://printcopy.info/?l=en&mod=erc&...ge=1&btnPage=y

    Is there a common cause for this, or is something blown up? It already has issues leaving streaks/marks on blank/all pages (worn/old drum in cartridge) and it's more of a hobby than an in-use printer. So I'm not looking to replace major components.

    Ideas?
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    #2
    Re: Laserjet 4L Code 52

    it's bullshit, you have dust on the mirrors.

    pull the cover and you see in the center a black box.
    open the cover and there are some mirrors, a lense for the laser and a spining mirror-cylinder with about 10 faces.
    clean them all.

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      #3
      Re: Laserjet 4L Code 52

      Originally posted by stj View Post
      it's bullshit, you have dust on the mirrors.

      pull the cover and you see in the center a black box.
      open the cover and there are some mirrors, a lense for the laser and a spining mirror-cylinder with about 10 faces.
      clean them all.
      Good call... mine only had two flat faces (plus 2 curved faces), but cleaned them up... and bingo, it's printing again. Apparently where I stored it was where some home improvement happened, because it was full of sheetrock debris too.
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        #4
        Re: Laserjet 4L Code 52

        mess on the prints is probably caused by the drum in the toner cartridge,
        but the foam transfer roller would also be a suspect.
        you can wash it with cold water and dish cleaning soap to get stuck toner out of it.

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          #5
          Re: Laserjet 4L Code 52

          Originally posted by stj View Post
          mess on the prints is probably caused by the drum in the toner cartridge,
          but the foam transfer roller would also be a suspect.
          you can wash it with cold water and dish cleaning soap to get stuck toner out of it.
          Who knows how old the cartridge is... I did clean a bunch of crap out of one of the rollers past the cartridge... the back of the paper is clean finally.

          I think I see the streaking patter on the drum itself... darn, and the ancient cartridge still has toner left. Oh well. :hammer:
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            #6
            Re: Laserjet 4L Code 52

            Did some more test prints. I have pictures in another thread:

            https://www.badcaps.net/forum/showthread.php?p=879112
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