ir7200 very light copy

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  • jiongpao
    Trusted Tech
    • May 2009
    • 413

    #1

    ir7200 very light copy

    Hi,

    Within these 3 days the machine came out a very light copy near blank but it not on every pages. On 500 pages there got 50-80 pages are near blank in stack in the middle of copying.
    I changed primary charging, transfer, pre-transfer and developer assy also no cure. Then i cleaned scanner mirrors nothing change. I dont know what else should i check and do. Please help
  • charm5496
    Service Manager

    Site Contributor
    1,000+ Posts
    • Apr 2008
    • 2387

    #2
    Re: ir7200 very light copy

    did you check your pre-exposure lamps to see if they are coming on?
    Accidents don't just happen. They must be carelessly planned.

    Comment

    • nick55
      Technician

      50+ Posts
      • Jun 2010
      • 51

      #3
      Re: ir7200 very light copy

      Originally posted by charm5496
      did you check your pre-exposure lamps to see if they are coming on?
      dont forget to clean connector terminal w/ alcohol. it might help

      Comment

      • watson
        Technician

        50+ Posts
        • Sep 2009
        • 64

        #4
        Re: ir7200 very light copy

        Your laser might be getting flaky and need replacing.

        Comment

        • teckat
          Field Supervisor

          Site Contributor
          10,000+ Posts
          • Jan 2010
          • 16083

          #5
          Re: ir7200 very light copy

          Originally posted by jiongpao
          Hi,

          Within these 3 days the machine came out a very light copy near blank but it not on every pages. On 500 pages there got 50-80 pages are near blank in stack in the middle of copying.
          I changed primary charging, transfer, pre-transfer and developer assy also no cure. Then i cleaned scanner mirrors nothing change. I dont know what else should i check and do. Please help
          1-check developer bias AC/DC
          2-pre-exposure lamps/check connection

          Did u check PG5
          **Knowledge is time consuming, exhausting and costly for a trained Tech.**

          Comment

          • bizhub1
            Trusted Tech

            Site Contributor
            100+ Posts
            • Sep 2008
            • 230

            #6
            Re: ir7200 very light copy

            Had one do the same thing and it was the developer drive clutch.

            Comment

            • gensys
              Trusted Tech

              250+ Posts
              • Jan 2011
              • 324

              #7
              Re: ir7200 very light copy

              It can help you
              Attached Files
              The Road will be Mastered by >>> the Going...

              Comment

              • jiongpao
                Trusted Tech
                • May 2009
                • 413

                #8
                Re: ir7200 very light copy

                Originally posted by teckat
                1-check developer bias AC/DC
                2-pre-exposure lamps/check connection

                Did u check PG5
                Sorry teckat how to check PG5? Actually im not sure what is PG5?

                Since we are having holiday for a week i might feed back slow in this thread after i try all the possibility solutions. But i need to wait them back on business then only i can go for 2nd try. Happy Holiday

                Comment

                • charm5496
                  Service Manager

                  Site Contributor
                  1,000+ Posts
                  • Apr 2008
                  • 2387

                  #9
                  Re: ir7200 very light copy

                  service mode>copier>test>PG-Type to 5>hit (OK) and then hit start.
                  machine will output a test page with a grayscale on it.
                  Accidents don't just happen. They must be carelessly planned.

                  Comment

                  • teckat
                    Field Supervisor

                    Site Contributor
                    10,000+ Posts
                    • Jan 2010
                    • 16083

                    #10
                    Re: ir7200 very light copy

                    Originally posted by jiongpao
                    Sorry teckat how to check PG5? Actually im not sure what is PG5?

                    Since we are having holiday for a week i might feed back slow in this thread after i try all the possibility solutions. But i need to wait them back on business then only i can go for 2nd try. Happy Holiday
                    READ PDF>>>>
                    Attached Files
                    **Knowledge is time consuming, exhausting and costly for a trained Tech.**

                    Comment

                    • jiongpao
                      Trusted Tech
                      • May 2009
                      • 413

                      #11
                      Re: ir7200 very light copy

                      oO this is the easy check on hardware with this pdf

                      Comment

                      • mramlawi
                        Senior Tech

                        500+ Posts
                        • Jul 2011
                        • 838

                        #12
                        Re: ir7200 very light copy

                        iam facing same problem on same Model still dont know what to do more ,i changed two cylander original toner ,cleaned all the machine ,changed the laser still facing the same shet ,i pulled back the machine from the field and dont know what to do :S Why this Happen is there;s any bulltin about this Problem ?

                        thanks
                        Distinguished road makes you jewel in rough

                        Comment

                        • teckat
                          Field Supervisor

                          Site Contributor
                          10,000+ Posts
                          • Jan 2010
                          • 16083

                          #13
                          Re: ir7200 very light copy

                          Originally posted by mramlawi
                          iam facing same problem on same Model still dont know what to do more ,i changed two cylander original toner ,cleaned all the machine ,changed the laser still facing the same shet ,i pulled back the machine from the field and dont know what to do :S Why this Happen is there;s any bulltin about this Problem ?

                          thanks


                          post some copies-
                          is issue on copies & prints

                          what does your PG TEST Papers show


                          use the process of elimination procedure
                          write yours out/ then forward track on them > then back track <
                          **Knowledge is time consuming, exhausting and costly for a trained Tech.**

                          Comment

                          • jiongpao
                            Trusted Tech
                            • May 2009
                            • 413

                            #14
                            Re: ir7200 very light copy

                            Hi guys the problem fixed when i cleaned the Developing clutch, CL4 and Developing cylinder deceleration clutch, CL20 at the back of machine without changing a new one, wondering why theres an oily around those clutchs. Tested 2 days and it was find till now but we need to monitor again for another few days.

                            Comment

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