MP c8002 banding

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  • Timmytronic
    Trusted Tech

    Site Contributor
    100+ Posts
    • Oct 2010
    • 249
    #1

    [Misc] MP c8002 banding

    Hi, I have an MP c8002 with banding issues but intermittently regular, if that makes sense. It's the black unit only. I have renewed the charge roller and it worked for a few jobs but then it goes banding again, and the banding spacing seems to be the charge roller. I have swapped the charge roller also from the yellow and it did the same. But every time I pull the machine apart and put it back together, even without changing anything, it seems fine for a few copies or runs, so I am thinking of some kind of bad earth or connection.

    Sorry for being so vague but I just can't work it out. I leave the customer happy and they will do a run, no problems, start another run and it may start off fine but then goes bandy halfway through and then fine again on the same run etc. So very intermittent.

    Thanks for any info.

    Tim
    Tags: None
    • rosspt
      Technician

      50+ Posts
      • Mar 2012
      • 92
      #2
      Re: MP c8002 banding

      If the machine is correcting itself 'eventually' you might be able to fix the issue by decreasing the the auto process control cycle so that it runs more often.

      As to why it is doing this in the first place, the first things I would check would be potential control sensor on the drum, clean terminals at the back of the pcdu, parts are within pm...

      Does the banding occur only on a specific job or on anything over a certain quantity? Always the black you mentioned? How about the image transfer roller for the black within the ITB (not listed as a pm part but it is)? Or completely isolated to the k charge roller? Is the drum cleaning unit possibly failing and leaving a band on the drum?

      Is there anything special about the paper?

        Comment

        • Tonerbomb
          AutoMajical Resolutionist

          Site Contributor
          2,500+ Posts
          • Feb 2005
          • 2589
          #3
          Re: MP c8002 banding

          What are the results of a forced LP and PC ???? are there any codes logged in the logging data????? check the TSB''s on these machines.......
          Mystic Crystal Revelations

            Comment

            • Zaxxon
              Senior Tech

              500+ Posts
              • Jan 2014
              • 608
              #4
              Re: MP c8002 banding

              Originally posted by Tonerbomb
              What are the results of a forced LP and PC ???? are there any codes logged in the logging data????? check the TSB''s on these machines.......
              I guess it wasn't important after all...
              Please start you post with brand, model, problem.

                Comment

                • Timmytronic
                  Trusted Tech

                  Site Contributor
                  100+ Posts
                  • Oct 2010
                  • 249
                  #5
                  Re: MP c8002 banding

                  Originally posted by Zaxxon
                  I guess it wasn't important after all...
                  Hello. Sorry for not replying. I have been very ill and hoping to back at work tomorrow to have a look at the bits said.

                  Thanks for getting back and sorry for not responding sooner.

                  Tim.

                    Comment

                    • TonerMunkeh
                      Professional Moron

                      2,500+ Posts
                      • Apr 2008
                      • 3865
                      #6
                      Re: MP c8002 banding

                      This any good?

                      RD135082.doc

                      There are buttloads of modifications on my-ricoh for this thing.
                      It's 106 miles to Chicago. We've got a full tank of gas, half a pack of cigarettes, it's dark and we're wearing sunglasses.

                      Hit it.

                        Comment

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