MP2555

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  • tcypy1961
    Senior Tech

    500+ Posts
    • Feb 2009
    • 772

    [CQ] MP2555

    IMG_0391.jpgWhat would cause insufficient fusing per example. Service request was for streaking. First copy made did not show this. Made three copies example shown is the first of the three copies. The last two had little to no sign of example. I inspected the fuser (copier has under 60,000 copies) saw nothing that could/would be causing this. Checked all fuser settings and all were where they were set. There have been no error codes related to fusing. The sample left is paper LEF the top is the trail edge. Looking for some guidance please!!!
    Thanks!!!
  • slimslob
    Retired

    Site Contributor
    25,000+ Posts
    • May 2013
    • 34960

    #2
    Re: MP2555

    What causes people to take crap pictures to post here when they have a full page scanner right in front of them?

    Comment

    • tcypy1961
      Senior Tech

      500+ Posts
      • Feb 2009
      • 772

      #3
      Re: MP2555

      Originally posted by slimslob
      What causes people to take crap pictures to post here when they have a full page scanner right in front of them?
      Was inside my car 45 miles away from my office hoping to get response before leaving area(apologies). Is there a solution for insufficient fusing in center of fuser unit with no visible signs from fuser unit. This happens on paper fed LEF or SEF. Thanks!!!!
      Did not happen on first copy made upon arrival. Made multiple copies was worse on first copy then cleared up afterwards

      Comment

      • slimslob
        Retired

        Site Contributor
        25,000+ Posts
        • May 2013
        • 34960

        #4
        Re: MP2555

        How long has it been since the fusing unit was rebuilt?

        Comment

        • tcypy1961
          Senior Tech

          500+ Posts
          • Feb 2009
          • 772

          #5
          Re: MP2555

          Originally posted by slimslob
          How long has it been since the fusing unit was rebuilt?
          copier was an off lease with 5,600 copies. Now under 60,000 copies. My understanding is fuser should be good for 300,000 copies. There is no physical signs of wear on fuser rollers.
          Thanks!!!

          Comment

          • slimslob
            Retired

            Site Contributor
            25,000+ Posts
            • May 2013
            • 34960

            #6
            Re: MP2555

            Originally posted by tcypy1961
            copier was an off lease with 5,600 copies. Now under 60,000 copies. My understanding is fuser should be good for 300,000 copies. There is no physical signs of wear on fuser rollers.
            Thanks!!!
            When was it manufactured, one to one and a half years ago. The model was introduced in 2020Those numbers are rather low for a machine that has been out for that long. After about two years the pressure roller could have started to die from age. The ends will start to flare causing reduced pressure in the middle.

            Comment

            • copyaction
              Senior Tech

              Site Contributor
              500+ Posts
              • Oct 2007
              • 976

              #7
              Re: MP2555

              I had one similar to this where the customer was using aftermarket toner.

              Comment

              • tcypy1961
                Senior Tech

                500+ Posts
                • Feb 2009
                • 772

                #8
                Re: MP2555

                Originally posted by slimslob
                When was it manufactured, one to one and a half years ago. The model was introduced in 2020Those numbers are rather low for a machine that has been out for that long. After about two years the pressure roller could have started to die from age. The ends will start to flare causing reduced pressure in the middle.
                Makes since; thanks!!!!

                Comment

                • slimslob
                  Retired

                  Site Contributor
                  25,000+ Posts
                  • May 2013
                  • 34960

                  #9
                  Re: MP2555

                  One thing most techs tend to ignore when it comes to Preventive Maintenance is the PM Counter Displayistance(%).

                  Comment

                  • luca72
                    Field Supervisor

                    1,000+ Posts
                    • Oct 2017
                    • 1514

                    #10
                    Re: MP2555

                    Originally posted by tcypy1961
                    [ATTACH=CONFIG]61281[/ATTACH]What would cause insufficient fusing per example. Service request was for streaking. First copy made did not show this. Made three copies example shown is the first of the three copies. The last two had little to no sign of example. I inspected the fuser (copier has under 60,000 copies) saw nothing that could/would be causing this. Checked all fuser settings and all were where they were set. There have been no error codes related to fusing. The sample left is paper LEF the top is the trail edge. Looking for some guidance please!!!
                    Thanks!!!
                    iI had similar problems a couple of times on this series, it was the double thermistor that was faulty
                    "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

                    Comment

                    • COPIERMAN
                      Senior Tech

                      500+ Posts
                      • Jun 2009
                      • 553

                      #11
                      Re: MP2555

                      i had a couple of instance where the compatible toner not working properly . try make a sky shot double sided 25 copies and see if toner stays bonded if not toner is no good to use.

                      Comment

                      • tcypy1961
                        Senior Tech

                        500+ Posts
                        • Feb 2009
                        • 772

                        #12
                        Re: MP2555

                        Originally posted by luca72
                        iI had similar problems a couple of times on this series, it was the double thermistor that was faulty

                        Comment

                        • JonManchester
                          Technician / Shop Manager

                          100+ Posts
                          • Aug 2013
                          • 103

                          #13
                          Re: MP2555

                          try fresh dry paper, paper with some moisture in it would cause such issues. If you don't have fresh paper, make 20 pages of blank copies then use that paper to make 20 duplex copies to see if there is any difference.
                          Live for something or die for nothing.

                          Comment

                          • slimslob
                            Retired

                            Site Contributor
                            25,000+ Posts
                            • May 2013
                            • 34960

                            #14
                            Re: MP2555

                            Originally posted by tcypy1961
                            What role does the sleeve play??? Older copiers(which I prefer) had two rollers. Fusing a result of heat & pressure.
                            1. Reduced overall machine weight and therefore reduced shipping costs.
                            2. Reduce energy consumption. Costs less to use.
                            3. RoHS, Restriction of Hazardous Substances, compliance. Manufacturers don't get fined for non-compliance.

                            Comment

                            • luca72
                              Field Supervisor

                              1,000+ Posts
                              • Oct 2017
                              • 1514

                              #15
                              Re: MP2555

                              Originally posted by tcypy1961
                              2 questions: 1. No error code???
                              2. What role does the sleeve play??? Older copiers(which I prefer) had two rollers. Fusing a result of heat & pressure. I inspected the unit more closely(having never done so before) noticing the flimsiness of this part. What supports the sleeve??? Did not want to fully disassemble since I don’t have replacement parts. Did check pressure between the sleeve & press roller and found it to be tighter on ends than the middle but couldn’t see any swelling in press roller on ends as was stated for a possible problem. I’m going to replace the sleeve and press roller hope it resolves issue. Also noticed poor fusing is worse in duplex copying.
                              Thanks!!!
                              I usually change the pressure roller when: either it has exceeded the pm duration, or when it is scratched where the thermistors touch, and I change those too, you don't see any codes, because the machine probably reads the wrong temperature, so that's all for it ok.

                              the sleeve system, as it is conceived, mainly serves to almost instantaneously reach the melting temperature for fixing the toner... in addiction of everything slimslob said.


                              I find this thing about the "non-homogeneity" of pressure roller quite unlikely
                              "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

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