HP Laserjet5 may be death caps?

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  • gonzo0815
    Badcaps Legend
    • Feb 2006
    • 1600
    #1

    HP Laserjet5 may be death caps?

    Hi all,

    i was asked if i could fix an Laserjet 5. The problem ist, that it is printing shit during the first 10 to 15minutes. After this heating up periode, it is working fine.

    From my point of view, this sounds for me for typical cap caused PSu problem,
    so i offered to fix it as lon as i haven`t to bother with mechanics.
    To be honest i have no clue abouth printers, as the mechanics is scaring me ;-) .
    I know that this thing is rather old, but if they`re happyn with it, i can warrant to spend a few fresh caps to this unit.
    Last edited by gonzo0815; 05-15-2007, 09:43 AM.
    Tags: None
    • dood
      Deputy dood
      • Mar 2004
      • 2462
      • USA
      #2
      Re: HP Laserjet5 may be death caps?

      Sounds like the fuser heating element is dying, and not reaching full heat right away.
      Ludicrous gibs!

        Comment

        • gonzo0815
          Badcaps Legend
          • Feb 2006
          • 1600
          #3
          Re: HP Laserjet5 may be death caps?

          Hm, well the fuser is melting the Toner and fixes it to the paper right?
          The Problem is, that the logic board does have some problems from my point of view.
          The prínter is printing something, and the print is ok, but there are those &%$§"'##*+~ bulshit things on the paper, not the thing you actually want to get printed.
          This leads me to the wild guess, that the logic board does have a problem.
          And as always, if the caps are getting warmer, the problem disappears afer abouth 10 to 15minutes.
          So i thought, may be the power or the logic boards caps are may be worn out (an to be honest, after abouth 11 years of duty, i think this should be not that uncomon, even if HP have used good caps at that time)

            Comment

            • willawake
              Super Modulator
              • Nov 2003
              • 8457
              • Greece
              #4
              Re: HP Laserjet5 may be death caps?

              i am surprised it lasted so long. we went through a lot of spares with a lj3 in 10 years or so. in the end it was cheaper to buy new.
              capacitor lab yachtmati techmati

                Comment

                • kc8adu
                  Super Moderator
                  • Nov 2003
                  • 8832
                  • U.S.A!
                  #5
                  Re: HP Laserjet5 may be death caps?

                  keep printer dry and death caps cannot grow in it ;-) sarcasm mode off.
                  you likely do have bad caps if its ok when its warm.
                  Attached Files

                    Comment

                    • gonzo0815
                      Badcaps Legend
                      • Feb 2006
                      • 1600
                      #6
                      Re: HP Laserjet5 may be death caps?

                      AFAIk the printouts are not that clean with that age, but obviousely this is ok for the owner.
                      I once ordered him a new ink ribbon for his dot matrix printer.
                      He never changed it since he got the printer.

                      With those Laserjet 3 i have had not mutch fun too, especially the rubber mechanics was hardend after a few years.
                      The result where masive paper jams wich lead me to a rapid disposal of those big fat printers.

                      Any way, if he is willing to give this laserjet a try, i will first replace a few lytics on the power and logic board.
                      If that does not help, i will not mess aroud with it.
                      But from todays printer longterm quality, i am not that convicend, that i can offer him anything comparable.

                        Comment

                        • Maxxarcade
                          Badcaps Veteran
                          • Jul 2006
                          • 973
                          #7
                          Re: HP Laserjet5 may be death caps?

                          Check the power supply/caps, IC sockets on the logic board, and any connectors that may be oxidized. If there is extra ram added, try removing it to see if it fixes the problem.

                          I still use a LaserJet 4 at work. Found it in the trash, and it had been rained on for a couple days. Cleaned it up, installed new exit rollers and 32MB of ram, and I use it quite a bit. Ram makes a ton of difference when printing PDF's

                            Comment

                            • Rainbow
                              Badcaps Legend
                              • Aug 2005
                              • 1374
                              #8
                              Re: HP Laserjet5 may be death caps?

                              Fixed LaserJet 5L yesterday - it had one of the classic problems with paper feeder (unable to feed). I was surprised that the rubber parts are still looking very good. Everything that was needed was cleaning and extending one spring a bit.
                              All the caps in the power supply are Rubycons.

                              I also have LaserJet IIIP - it had problems with paper feeder too. I just rotated the rubber covering the paper pickup rollers (only one side gets in touch with the paper - so the other one is not worn) and it works fine again.
                              Last edited by Rainbow; 05-17-2007, 01:06 AM.

                                Comment

                                • Logistics
                                  Badcaps Veteran
                                  • Apr 2007
                                  • 721
                                  • USA
                                  #9
                                  Re: HP Laserjet5 may be death caps?

                                  DANG YOU KC! I was about to be clever and jump in this thread and post a picture of mushrooms. BEATEN!!!11ONE XD
                                  Presonus Audiobox USB, Schiit Magni 3, Sony MDR-V700

                                    Comment

                                    • hardwareguy
                                      Badcaps Veteran
                                      • Jun 2006
                                      • 405
                                      • USA
                                      #10
                                      Re: HP Laserjet5 may be death caps?

                                      A bad Jet Direct card can also cause WEIRD things to happen like gibberish, endless printing of the same gibberish, etc.

                                      Test using the parallel interface to eliminate the Jet Direct card.

                                        Comment

                                        • severach
                                          Badcaps Legend
                                          • Aug 2007
                                          • 1055
                                          • USA
                                          #11
                                          Re: HP Laserjet5 may be death caps?

                                          The LJ3 is only 300dpi. No matter how good the printer is that won't do for me. I pulled my LJ5 from the trash too. I popped out the defective RAM and it prints perfect.

                                          There's a place for printers just as good as this place is for caps. Read a while and you won't be afraid of the printer mechanicals any more.

                                          http://www.fixyourownprinter.com/
                                          sig files are for morons

                                            Comment

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