mpc3002 jam between F.U. and exit

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  • Mark Bbb
    Service Manager

    1,000+ Posts
    • Jun 2012
    • 1662

    #16
    Re: mpc3002 jam between F.U. and exit

    Originally posted by Gary Bowen
    Have you tried adjusting the Buckle with SP 1003-002 for Tray 1 (Plain)? I know you said all 4 Trays exhibit the same problem but its worth a try. Tray 2/3/4 all are adjusted with SP 1003-007 (Plain).
    Yes.
    But it is solved....
    At least, for the client it is solved...
    I have swapped the entire duplex unit and took the problem back to our office
    So, it's something in the duplex unit; i guess a wire is blocked, i will investigate this when i have more time.
    I'll keep you informed.
    Thanks to you for your input.

    Comment

    • Mark Bbb
      Service Manager

      1,000+ Posts
      • Jun 2012
      • 1662

      #17
      Re: mpc3002 jam between F.U. and exit

      Originally posted by Mark Bbb
      Yes.
      But it is solved....
      At least, for the client it is solved...
      I have swapped the entire duplex unit and took the problem back to our office
      So, it's something in the duplex unit; i guess a wire is blocked, i will investigate this when i have more time.
      I'll keep you informed.
      Thanks to you for your input.
      The problem was somewhere in the paper transfer & separation unit.
      I've swapped and replaced so many things on the paper trans&sep unit that i can't get head nor tail of it, now!
      I've noticed that a paper transfer & sep unit of a mpc3002 will give light image on the duplex side when used in a mpc5502.
      The duplex units ass'y are inter swappable between these two models, but the mpc5502 paper trans&sep unit needs to stay with his model.
      A mpc5502 paper trans&sep unit is ok in c3002, but not v.v. !!

      Comment

      • Mark Bbb
        Service Manager

        1,000+ Posts
        • Jun 2012
        • 1662

        #18
        Re: mpc3002 jam between F.U. and exit

        Sorry.
        - It is not solved. Whatever paper Tra&sep unit this duplex unit holds, it jams.
        But this morning it all worked fine, so i assembled all panels and tested it afterwards (to be 100% sure), and the problem went back.
        So, i removed all panels again, no good.
        - The image of the duplex side is very much to light (i think there was no current to attract the toner from the ITB)

        The image on all papers has moved upwards a bit.
        The paper jams always at the same spot: one specific fork of the exit junction gate pawl.
        The problem must be somewhere in the duplex unit itself; i
        But, the harness of the manual feed on these models are very vulnerable, when moving manual feed table, but even that one seems to be good.
        ...

        Comment

        • Mark Bbb
          Service Manager

          1,000+ Posts
          • Jun 2012
          • 1662

          #19
          Re: mpc3002 jam between F.U. and exit

          After better inspection, there is one grey 12V wire that has a L angle and it seems that it was blocked before.
          Could this cause such big problems?

          Comment

          • jakebear
            Technician
            • Oct 2019
            • 33

            #20
            Re: mpc3002 jam between F.U. and exit

            Replace the fuser unit, or flip it on both sides, or secondary transfer.

            Comment

            • FrohnB
              Service Manager

              Site Contributor
              1,000+ Posts
              • Jul 2017
              • 1919

              #21
              Re: mpc3002 jam between F.U. and exit

              Originally posted by Mark Bbb
              After better inspection, there is one grey 12V wire that has a L angle and it seems that it was blocked before.
              Could this cause such big problems?
              Can't say we've seen anything with that wire (but you can swap it to be sure!). We usually see the green ground-wire that goes from duplex to mainframe broken causing SC204.

              Have you checked the "docking brackets" for that Transfer/Sep unit on front and rear of machine right next to ITB? Sometimes those get broken and Transfer unit doesn't sit right, and can cause light images.

              You also say that it always jams on a "tooth in the exit unit". Is your fuser exit guide warped? Is the entrance guide clean? Have you checked that the junction gate solenoid is getting it's full "throw"?

              Have you tried swapping the exit unit?
              Omertà

              Comment

              • Mark Bbb
                Service Manager

                1,000+ Posts
                • Jun 2012
                • 1662

                #22
                Re: mpc3002 jam between F.U. and exit

                Originally posted by jakebear
                Replace the fuser unit, or flip it on both sides, or secondary transfer.
                Jakebear, i have replaced the F.U. with a totaly new one, as i have written in a earlier bulletin in this thread.

                Comment

                • Mark Bbb
                  Service Manager

                  1,000+ Posts
                  • Jun 2012
                  • 1662

                  #23
                  Re: mpc3002 jam between F.U. and exit

                  Originally posted by FrohnB
                  Can't say we've seen anything with that wire (but you can swap it to be sure!). We usually see the green ground-wire that goes from duplex to mainframe broken causing SC204.

                  Have you checked the "docking brackets" for that Transfer/Sep unit on front and rear of machine right next to ITB? Sometimes those get broken and Transfer unit doesn't sit right, and can cause light images.

                  You also say that it always jams on a "tooth in the exit unit". Is your fuser exit guide warped? Is the entrance guide clean? Have you checked that the junction gate solenoid is getting it's full "throw"?

                  Have you tried swapping the exit unit?
                  No, there are no broken "docking brackets". In fact I tried everything you suggest here, and everything you have suggested was also written in this tread before.

                  Comment

                  • GIUBOSS
                    Service Manager

                    Site Contributor
                    1,000+ Posts
                    • Jul 2013
                    • 1435

                    #24
                    Re: mpc3002 jam between F.U. and exit

                    Sometimes I found photosensor electric wires, interrupted, I believe they are economizing in assembling these new machines

                    Comment

                    • Mark Bbb
                      Service Manager

                      1,000+ Posts
                      • Jun 2012
                      • 1662

                      #25
                      Re: mpc3002 jam between F.U. and exit

                      solo...
                      I have installed a mpc3001 duplex unit in this mpc5502 and now it indicates a jam in C...
                      These duplex units are not interchangeable?

                      Comment

                      • GIUBOSS
                        Service Manager

                        Site Contributor
                        1,000+ Posts
                        • Jul 2013
                        • 1435

                        #26
                        Re: mpc3002 jam between F.U. and exit

                        you should first check the manuals if they are the same and then try to do it. I don't know but I think having two different copying speeds will have different duplex.

                        Comment

                        • Mark Bbb
                          Service Manager

                          1,000+ Posts
                          • Jun 2012
                          • 1662

                          #27
                          Re: mpc3002 jam between F.U. and exit

                          Originally posted by GIUBOSS
                          you should first check the manuals if they are the same and then try to do it. I don't know but I think having two different copying speeds will have different duplex.
                          As long as there are no electronic printboards on that assembely, copy speed can not be an issue.
                          I am going to replace all sensors and the harness, i think that will be the solution.

                          Comment

                          • fshead
                            Service Manager

                            1,000+ Posts
                            • Jan 2009
                            • 2376

                            #28
                            Re: mpc3002 jam between F.U. and exit

                            I actually have one or two of the right side full "DOOR",assembly as I find when needed a god send..
                            Maybe scour up a am old printer spc830 and gut it..
                            I think the mpc3501 and mpc3502 are very similiar but have not had need nor want to find out.
                            good luck

                            Comment

                            • Mark Bbb
                              Service Manager

                              1,000+ Posts
                              • Jun 2012
                              • 1662

                              #29
                              Re: mpc3002 jam between F.U. and exit

                              Originally posted by fshead
                              I actually have one or two of the right side full "DOOR",assembly as I find when needed a god send..
                              Maybe scour up a am old printer spc830 and gut it..
                              I think the mpc3501 and mpc3502 are very similiar but have not had need nor want to find out.
                              good luck
                              sensors (3002=3001=2800)
                              AW010107 x2 enterance & lower 6,18
                              AW010118 middle 7,91
                              AW500031 paper size sensor by pass 2,41
                              AW500035 paper end sensor by pass 3,31
                              AW020145 x2 photointerruptor man feed table & upper cover
                              harness 3002harness 3001
                              D0894587 main
                              D0292769 by pass (=3002)
                              D0294562
                              B2232659 (=3002)


                              Comment

                              • fshead
                                Service Manager

                                1,000+ Posts
                                • Jan 2009
                                • 2376

                                #30
                                Re: mpc3002 jam between F.U. and exit

                                I am old school and grab from my scrap piles.
                                That is why I try to wrap and protect spare parts as
                                buying from ricoh is pricey..

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