HP LaserJet 8150N

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  • CWalls
    • Jun 2025
    #1

    HP LaserJet 8150N

    Hi there, need help with a HP LaserJet 8150N printer, the problem started with the replacement of the Fuser the tech guy changed it but if I print a 30 page document after the page 15 or so the toner comes of the paper there is no error message, I have called 2 diferent tech companys and 6 fusers have ben replaced and still the same problem (this only hapens if I print on Legal paper).

    Any Idea?

    Thank's in advanced
    Tags: 8150n, error message, laserjet, lef, power supply, pushed, slower, symptoms, unload
    • TheOwl
      Service Manager

      Site Contributor
      1,000+ Posts
      • Nov 2008
      • 1732
      #2
      I am presumming that you have your 'Legal' paper in one certain cassette. Make sure that the paper type for that cassette is set to the type of stock that is being used.
      Please don't ask me for firmware or service manuals as refusal often offends.

        Comment

        • TheOwl
          Service Manager

          Site Contributor
          1,000+ Posts
          • Nov 2008
          • 1732
          #3
          Sorry, one other thing I just thought in case the paper type is correct.

          I have seen this in a couple of the smaller HP printers, not the 8150, but works one the same principle.

          I have had bad power supplies cause the same issue. They weren't supplying enough voltage to the fuser. It would heat slower than other machines, but heat up all the same. As soon as it came to longer print runs, the power supply didn't have enough voltage to keep the fuser at the right temp during the run.

          Just another thought to add to my previous post.
          Please don't ask me for firmware or service manuals as refusal often offends.

            Comment

            • fixthecopier
              ALIEN OVERLORD

              2,500+ Posts
              • Apr 2008
              • 4714
              #4
              Good call Owl, the 8150 has power supply issues. 9 times out of 10 if you get a fuser code on this machine, it really needs a power supply. I would check the media type first.
              The greatest enemy of knowledge isn't ignorance, it is the illusion of knowledge. Stephen Hawking

                Comment

                • JustManuals
                  Field Supervisor

                  5,000+ Posts
                  • Jan 2006
                  • 9838
                  #5
                  Actually its cold solder joints on the power supply that gives the problem and can usually be fixed by re-soldering them.

                  HtH
                  Paul@justmanuals.com

                    Comment

                    • CWalls
                      #6
                      Thank's for the info I'll start working on it and let you know if it worked

                        Comment

                        • c.davis419
                          Junior Member
                          • Dec 2008
                          • 7
                          #7
                          I know it sounds silly, but you should check the fuser assembly itself and verify that the nip levers are released. This fuser has two levers that when pushed into the up position unload the spring tension between the fuser rollers to prevent flat spots from occuring while in storage. If they are left up, the printer will exibit the exact symptoms you've described.

                            Comment

                            • blackcat4866
                              Master Of The Obvious

                              Site Contributor
                              10,000+ Posts
                              • Jul 2007
                              • 22996
                              #8
                              Yeah, I've got a customer who has to fiddle with the "envelope" pressure levers. I can usually get this one handled over the phone now. =^..^=
                              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

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