C-4520

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  • methogod
    Senior Tech

    Site Contributor
    500+ Posts
    • Dec 2008
    • 917
    #1

    [Error Code] C-4520

    Was happening when machine was at 280K on PM, and drums at the 150% (even though they are DU104's and prints looked good) i can tell it was starting to act up...
    But to make it through the week i turned off auto registration as prints were still usable.

    Did both PM kits - 100K and 200K, and All DV's and even replaced the black DV unit that was at 1.6million (i know shouldnt let it go that far)
    Did all the adjustments... Cleared all counters, put the density's back to norm (as machine get past 100% we up the density to compensate)....
    And turn Auto Registration back on...

    Then later the same day ran 1st job with all new supplies - looks great.

    Boom at 650 of 1000 pages (12x18 2 sided) Code trips - machine turns off...


    C-4520


    1st - if my colors are all good - and shutters open and close in I/O, where do i look next??

    2nd - Can someone post or msg all relevant info from MKM on this code...

    I do have a spare registration board assembly but i heard its impossible to replace with out go go gadget arms....



    thanks,
    Tags: None
    • Herrmann
      Senior Tech

      Site Contributor
      500+ Posts
      • Jan 2006
      • 792
      #2
      Re: C-4520

      I do have a spare registration board assembly but i heard its impossible to replace with out go go gadget arms....
      It is tricky, but it is not impossible, so go for excanging the sensor assy as next step, if you are sure, that the transfer belt is running smooth and not wobbling... only one screw to loosen and the connector is at the inner backside, but you can manage it without removing the Process Unit.
      BTDT
      If sometimes you feel a little useless, offended and depressed always remember that you were once the fastest and most victorious sperm of hundreds of millions!

        Comment

        • laitang
          Senior Tech

          500+ Posts
          • Nov 2012
          • 627
          #3
          Re: C-4520

          You should:
          1/ Perform color Registration Adj. (in sm)
          2/ Check Color registration sensor (front, rear)

            Comment

            • blackcat4866
              Master Of The Obvious

              Site Contributor
              10,000+ Posts
              • Jul 2007
              • 22997
              #4
              Re: C-4520

              These patch sensors are often neglected, because when you're in there servicing, the sensor is hidden under a protective shutter.

              every time I have the primary transfer belt out, I take the time to swab out the patch sensors with a Q-tip. Maybe it's overkill, but I don't seem to have very many problems with them. =^..^=
              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

                • Herrmann
                  Senior Tech

                  Site Contributor
                  500+ Posts
                  • Jan 2006
                  • 792
                  #5
                  Re: C-4520

                  A word of a warning: never ever blow out the sensors with canned air, the static charge will kill them immedeatly.
                  If sometimes you feel a little useless, offended and depressed always remember that you were once the fastest and most victorious sperm of hundreds of millions!

                    Comment

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