Bizhub C203 ADF image shift

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  • Gina82
    Technician

    50+ Posts
    • Oct 2017
    • 98

    #16
    Re: Bizhub C203 ADF image shift

    Update: I performed every auto ADF adjustment ( Feed zoom, Original tray width, Auto stop position adj.),as far as I could see the machine didn't give me an option to perform a mixed sized original adjustment and I see no mentions of it in the service manual (checked to be sure I wasn't over looking it.), performed a sensor check to check before read sensor (PS9),
    Last edited by Gina82; 12-18-2019, 09:49 PM.

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    • Gina82
      Technician

      50+ Posts
      • Oct 2017
      • 98

      #17
      Re: Bizhub C203 ADF image shift

      DF-611InstallInst.pdf I have followed these steps and still get the same bad copies. I checked the voltage of each clutch attached to the DFCB and everyone is getting proper voltage. As well as each of the sensors. a01hm0nc901da.pdf I have attached the installation manual of the DF-611 and the wiring diagram for the ADF. Any other ideas?

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      • Copier Addict
        Aging Tech

        Site Contributor
        10,000+ Posts
        • Jul 2013
        • 14553

        #18
        Re: Bizhub C203 ADF image shift

        Originally posted by Gina82
        [ATTACH]44446[/ATTACH] I have followed these steps and still get the same bad copies. I checked the voltage of each clutch attached to the DFCB and everyone is getting proper voltage. As well as each of the sensors. [ATTACH]44447[/ATTACH] I have attached the installation manual of the DF-611 and the wiring diagram for the ADF. Any other ideas?
        The VR behind the paper edge guides could be faulty

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        • Gina82
          Technician

          50+ Posts
          • Oct 2017
          • 98

          #19
          Re: Bizhub C203 ADF image shift

          Originally posted by copier addict
          The VR behind the paper edge guides could be faulty
          Could you tell me where the VR is?I could look at the parts manual and find it if you know the part number

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          • Copier Addict
            Aging Tech

            Site Contributor
            10,000+ Posts
            • Jul 2013
            • 14553

            #20
            Re: Bizhub C203 ADF image shift

            Originally posted by Gina82
            Could you tell me where the VR is?I could look at the parts manual and find it if you know the part number

            When you move the paper guides apart they turn a gear, this gear turns a variable resistor (VR). If the gear has jumped it would put the VR out of range. If the VR is faulty it will also be out of range.

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            • Gina82
              Technician

              50+ Posts
              • Oct 2017
              • 98

              #21
              Re: Bizhub C203 ADF image shift

              oh! I know exactly where that is. It's worth a shot to try it so i'll try it next, but the copier does notice the paper's size and I was able to perform an original tray width adjustment. Maybe it's faulty and is telling the machine the original is a different size than what's shown on the screen? Maybe I'm overthinking it?

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              • Synthohol
                Certified Konica Expert

                Site Contributor
                5,000+ Posts
                • Mar 2016
                • 5806

                #22
                Re: Bizhub C203 ADF image shift

                maybe try backing up the address book and network settings to a PC and initialize it, put movie data back on and import the settings again.
                try mixed originals setting, im also wondering if the CCD is whacked for adf scan area.
                did you try 2 sided and see if it correctly prints on the 2nd imprint.
                We know a thing or two because we've seen a thing or two.
                The medication helps though...

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                • Copier Addict
                  Aging Tech

                  Site Contributor
                  10,000+ Posts
                  • Jul 2013
                  • 14553

                  #23
                  Re: Bizhub C203 ADF image shift

                  Did you blow out the sensor and black patch on the fold down guide on the bottom left of the DF?

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                  • scottybbb
                    Trusted Tech
                    • Dec 2010
                    • 126

                    #24
                    Re: Bizhub C203 ADF image shift

                    The door on the left that you open to clear jams can break. It is hard to see but I have had to replace a couple of the doors on those ADF'S.

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                    • Gina82
                      Technician

                      50+ Posts
                      • Oct 2017
                      • 98

                      #25
                      Re: Bizhub C203 ADF image shift

                      Originally posted by Synthohol
                      maybe try backing up the address book and network settings to a PC and initialize it, put movie data back on and import the settings again.
                      try mixed originals setting, im also wondering if the CCD is whacked for adf scan area.
                      did you try 2 sided and see if it correctly prints on the 2nd imprint.
                      Yes, and both images on each side are shifted down half an inch

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                      • Gina82
                        Technician

                        50+ Posts
                        • Oct 2017
                        • 98

                        #26
                        Re: Bizhub C203 ADF image shift

                        No new ideas?

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                        • K-3
                          service technician

                          50+ Posts
                          • Feb 2018
                          • 51

                          #27
                          Re: Bizhub C203 ADF image shift

                          are you getting the same affect when you do a copy in lef. that may lead to a centering adj. for the tray with sef paper loaded. one thing also turn off auto zoom ADF in user settings and see what happens. do you have another df you can use to swap?

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                          • Gina82
                            Technician

                            50+ Posts
                            • Oct 2017
                            • 98

                            #28
                            Re: Bizhub C203 ADF image shift

                            Originally posted by K-3
                            are you getting the same affect when you do a copy in lef. that may lead to a centering adj. for the tray with sef paper loaded. one thing also turn off auto zoom ADF in user settings and see what happens. do you have another df you can use to swap?
                            I did swap the DF-611 with a different one for the time being and the images are alot better, so I know that the problem is in my ADF. The image is shifted down to the left if I place the original LEF.

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                            • srvctec
                              Former KM Senior Tech

                              500+ Posts
                              • Oct 2009
                              • 827

                              #29
                              Re: Bizhub C203 ADF image shift

                              If you slide the guides all the way in, are they the same distance from the edges of the raised minimum position molded into the original tray? If not, then the rack and pinion gear has slipped a tooth or more.

                              Also, I haven't seen this mentioned yet so try this. Re-secure all connections to the ADF board and as many sensors as you can get to. Try the board first, then sensors if no change after board.
                              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.

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                              • tsbservice
                                Field tech

                                Site Contributor
                                5,000+ Posts
                                • May 2007
                                • 7983

                                #30
                                Re: Bizhub C203 ADF image shift

                                Do original tray width position adjustment as per book. From max - A3 to min - B6 sizes.
                                Also try to make a copy without DF selecting paper size i.e. just manually select A4 to A4.
                                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.
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