background di 620

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  • roniirawan
    Technician
    • Nov 2008
    • 15
    #1

    background di 620

    hi.....
    can anyone to help me how to solve the background problem on DI 620, drum, developer, cleaning blade are new

    thanks for your help
    Tags: 620, background, cleaning blade, stalling
    • fixthecopier
      ALIEN OVERLORD

      2,500+ Posts
      • Apr 2008
      • 4714
      #2
      what is the problem? Too dark? too fuzzy? spots? lines? You are aware that the term background problem is not a term that means the same thing every time. And what is the meter?
      The greatest enemy of knowledge isn't ignorance, it is the illusion of knowledge. Stephen Hawking

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        • alonzo
          Technician

          50+ Posts
          • Feb 2009
          • 63
          #3
          Did you clean optics and white srtip on glass?

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            • albasoul06
              #4
              Gray/fuzzy background on copies.

              PROBABLE CAUSES:
              1. PM is due. Consider replacing starter, drum, cleaning drum grounds, and installing different developer.
              2. Counters were not cleared. Check that your developer and drum counters had been cleared.
              3. No ATDC set value was entered. Make sure that a value for ATDC was set in the adjust mode (see page S-52 of the Service Manual). A value must be entered after running the F8.
              4. No pre-drive. Also make sure that pre-drive is working, checking that the rear cover interlock (photo type) and the front door (magnet type) are functioning.
              (The I/O check mode can be used to do this.) Please see page T-3 in the trouble shooting manual for additional information. The Pre-Drive front and Rear are located under "Sensors 5" in the I/O check list.

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