How to check Magnetic Roller Strength

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  • denvertan
    Technician
    • May 2019
    • 82
    #1

    [CQ] How to check Magnetic Roller Strength

    My old school method is to turn the roller manually and make sure the whole roller is stick with developer.
    Any scientific way I can check the roller instead of my old school way.

    This is what happen when I use my old school way.
    Last month it is full of developer, this month is not.

    zzzzaaaaa.jpg
    Tags: check, developer, roller, school, scientific
    • srvctec
      Former KM Senior Tech

      500+ Posts
      • Oct 2009
      • 827
      #2
      Re: How to check Magnetic Roller Strength

      The missing developer most likely has nothing to do with your magnetic roller losing any magnetism. I've only come across this issue (mag roller losing magnetism) a handful of times over the last 31 years and it was always on the same model, the Minolta 1030. Your issue is that the developer is missing from the developing unit for some reason and you need to find out why.
      Started in the copier service business in the fall of 1988 and worked at the same company for 33.5 years, becoming the senior tech in 2004 but left to pursue another career on 4/29/22.

        Comment

        • tsbservice
          Field tech

          Site Contributor
          5,000+ Posts
          • May 2007
          • 7635
          #3
          Re: How to check Magnetic Roller Strength

          Agree, most likely machine is dumping developer into WTB. Also if you turn mag roller wrong side on some models there are Mylars that may flip and cause issues. I have maybe one failed magnetic roller, magnets broke inside.
          A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
          Blessed are they who can laugh at themselves, for they shall never cease to be amused.

            Comment

            • Phil B.
              Field Supervisor

              10,000+ Posts
              • Jul 2016
              • 22808
              #4
              Re: How to check Magnetic Roller Strength

              Originally posted by tsbservice
              Agree, most likely machine is dumping developer into WTB. Also if you turn mag roller wrong side on some models there are Mylars that may flip and cause issues. I have maybe one failed magnetic roller, magnets broke inside.
              in ANY SM that I've read over the past 31+yrs , there has always been a diagram showing WHICH direction to turn mag roller to avoid mylar flip. I have seen trained techs ignore that and then wonder why they have dumping and poor CQ.

              only one mag roller I can remember was the cause... the enduser had dropped the cart, cracking the magnet inside the roller. VERY RARE.

                Comment

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 22703
                  #5
                  Re: How to check Magnetic Roller Strength

                  The main reasons I've seen for dumping developer is primary charge loss, or drum cleaning LED failure. =^..^=
                  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

                    • blackcat4866
                      Master Of The Obvious

                      Site Contributor
                      10,000+ Posts
                      • Jul 2007
                      • 22703
                      #6
                      Re: How to check Magnetic Roller Strength

                      Originally posted by Phil B.
                      in ANY SM that I've read over the past 31+yrs , there has always been a diagram showing WHICH direction to turn mag roller to avoid mylar flip. I have seen trained techs ignore that and then wonder why they have dumping and poor CQ.

                      only one mag roller I can remember was the cause... the enduser had dropped the cart, cracking the magnet inside the roller. VERY RARE.
                      I've done this a few times myself, the last time on a bizhub C1060. Once that mylar flips from turning the wrong direction, the developer will all dump. And on the C1060 its a strip of metal ... very difficult to re-position. If you can get it started flipping back at one end, turning the roller in the correct direction will crawl it back with difficulty. =^..^=
                      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

                        • tsbservice
                          Field tech

                          Site Contributor
                          5,000+ Posts
                          • May 2007
                          • 7635
                          #7
                          Re: How to check Magnetic Roller Strength

                          Originally posted by blackcat4866
                          I've done this a few times myself, the last time on a bizhub C1060. Once that mylar flips from turning the wrong direction, the developer will all dump. And on the C1060 its a strip of metal ... very difficult to re-position. If you can get it started flipping back at one end, turning the roller in the correct direction will crawl it back with difficulty. =^..^=
                          That's the main reason I always check the manual before even start working on developer unit. You can screw things badly in a blink
                          A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                          Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                            Comment

                            • AnaDorr
                              Junior Member
                              • Apr 2017
                              • 7
                              #8
                              Re: How to check Magnetic Roller Strength

                              Originally posted by srvctec
                              The missing developer most likely has nothing to do with your magnetic roller losing any magnetism. I've only come across this issue (mag roller losing magnetism) a handful of times over the last 31 years and it was always on the same model, the Minolta 1030. Your issue is that the developer is missing from the developing unit for some reason and you need to find out why. It can be also resolved with the help of scrap magnets
                              The thing is that today magnets became rather widespread in the life of ordinary people and industry, as well. Today I found so many companies providing assistance in cargo lifting, delivery, cranes etc. with the help of electromagnets. But it is not soo simple to find the responsible person or company even in the mentioned area. It is very important in cooperation with such a company.

                                Comment

                                • srvctec
                                  Former KM Senior Tech

                                  500+ Posts
                                  • Oct 2009
                                  • 827
                                  #9
                                  Re: How to check Magnetic Roller Strength

                                  Originally posted by AnaDorr
                                  The thing is that today magnets became rather widespread in the life of ordinary people and industry, as well. Today I found so many companies providing assistance in cargo lifting, delivery, cranes etc. with the help of electromagnets. But it is not soo simple to find the responsible person or company even in the mentioned area. It is very important in cooperation with such a company.
                                  WOW. That's your very first post here after joining over 3 years ago?? Thanks for the SPAM! The not so subtle editing of my quote is pretty low. Just go away. Oh look, you now have a red card!!
                                  Last edited by srvctec; 02-24-2020, 05:17 PM.
                                  Started in the copier service business in the fall of 1988 and worked at the same company for 33.5 years, becoming the senior tech in 2004 but left to pursue another career on 4/29/22.

                                    Comment

                                    • tsbservice
                                      Field tech

                                      Site Contributor
                                      5,000+ Posts
                                      • May 2007
                                      • 7635
                                      #10
                                      Re: How to check Magnetic Roller Strength

                                      Originally posted by srvctec
                                      WOW. That's you very first post here after joining over 3 years ago?? Thanks for the SPAM! The not so subtle editing of my quote is pretty low. Just go away. Oh look, you now have a red card!!
                                      Yeah, I was thinking yesterday exactly what you say but decided he/she don't deserve my(our) time. I guess if my post was quoted by sneaky person I would be more irritated.
                                      +1 RC
                                      A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                                      Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                                        Comment

                                        • Phil B.
                                          Field Supervisor

                                          10,000+ Posts
                                          • Jul 2016
                                          • 22808
                                          #11
                                          Re: How to check Magnetic Roller Strength

                                          Originally posted by srvctec
                                          WOW. That's you very first post here after joining over 3 years ago?? Thanks for the SPAM! The not so subtle editing of my quote is pretty low. Just go away. Oh look, you now have a red card!!
                                          he's gathering quite the collection.

                                            Comment

                                            • Synaux
                                              Service Manager

                                              Site Contributor
                                              1,000+ Posts
                                              • Mar 2012
                                              • 1224
                                              #12
                                              Re: How to check Magnetic Roller Strength

                                              Originally posted by srvctec
                                              WOW. That's your very first post here after joining over 3 years ago?? Thanks for the SPAM! The not so subtle editing of my quote is pretty low. Just go away. Oh look, you now have a red card!!
                                              I never actually read the quotes if it is mine, lol good catch

                                                Comment

                                                • allan
                                                  RTFM!!

                                                  5,000+ Posts
                                                  • Apr 2010
                                                  • 5445
                                                  #13
                                                  Re: How to check Magnetic Roller Strength

                                                  Only real magnet related problems i have come across was other wise the magnet got detached somehow or the magnet angle was out of position.
                                                  Whatever

                                                    Comment

                                                    • Zesti
                                                      Trusted Tech

                                                      250+ Posts
                                                      • Jun 2009
                                                      • 308
                                                      #14
                                                      Re: How to check Magnetic Roller Strength

                                                      Do not drop mag roller, prevent scratching on roller. The magnets inside are permanent unless it is 50+ years old. If magnet roller adhering developer..... its good.

                                                        Comment

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