Random lead edge dirty on MP7500

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • mrwho
    Major Asshole!

    Site Contributor
    2,500+ Posts
    • Apr 2009
    • 4299
    #1

    [CQ] Random lead edge dirty on MP7500

    Good morning, commuters!

    I'm having this problem on a customer's machine. Randomly the first page of a job will come out like this.

    leadedge.jpg

    Leading edge, simplex (or duplex, doesn't matter).

    The stupid thing is I believe I had this one before on another customer and I can't remember how I managed to solve it.

    I'm in the process of ordering parts for the drum and transfer belt units, but I'd like some assurance that it isn't something else entirely.

    Cheers!
    ' "But the salesman said . . ." The salesman's an asshole!'
    Mascan42

    'You will always find some Eskimo ready to instruct the Congolese on how to cope with heat waves.'
    Ibid

    I'm just an ex-tech lurking around and spreading disinformation!
    Tags: None
    • Polo-022
      Trusted Tech

      250+ Posts
      • Sep 2007
      • 486
      #2
      Re: Random lead edge dirty on MP7500

      Drum 100%.

        Comment

        • slimslob
          Retired

          Site Contributor
          25,000+ Posts
          • May 2013
          • 37490
          #3
          Re: Random lead edge dirty on MP7500

          Also charge corona is past recommended PM.

            Comment

            • fshead
              Service Manager

              1,000+ Posts
              • Jan 2009
              • 2376
              #4
              Re: Random lead edge dirty on MP7500

              I would clean drum shaft and clean all around the develioper unit,esp the mag roller ends and contacts...
              looks like bias might be dropping out and it could be drum too..

                Comment

                • slimslob
                  Retired

                  Site Contributor
                  25,000+ Posts
                  • May 2013
                  • 37490
                  #5
                  Re: Random lead edge dirty on MP7500

                  FYI, this is very common when the machine is considerably past PM cycle. First one or two copies/prints after the machine has set for any length of time. Incomplete charging at the start of drum rotation. Raising charge voltage sometimes help long enough to get in PM parts to include drum.

                    Comment

                    • Gary Bowen
                      Bowdog

                      250+ Posts
                      • Mar 2008
                      • 250
                      #6
                      Re: Random lead edge dirty on MP7500

                      I have also seen a loose Flywheel on the Drum shaft cause a similar problem.

                        Comment

                        • mrwho
                          Major Asshole!

                          Site Contributor
                          2,500+ Posts
                          • Apr 2009
                          • 4299
                          #7
                          Re: Random lead edge dirty on MP7500

                          Welp, policy here is "let it roll until it lasts", so...

                          Going there today - will keep you posted!
                          ' "But the salesman said . . ." The salesman's an asshole!'
                          Mascan42

                          'You will always find some Eskimo ready to instruct the Congolese on how to cope with heat waves.'
                          Ibid

                          I'm just an ex-tech lurking around and spreading disinformation!

                            Comment

                            • yuan797
                              Junior Member
                              • Feb 2017
                              • 2
                              #8
                              Re: Random lead edge dirty on MP7500

                              Drum 100% +1

                                Comment

                                Previous template Next
                                Working...