CS-2560 Dark Copies & Spots

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  • blackcat4866
    Master Of The Obvious

    Site Contributor
    10,000+ Posts
    • Jul 2007
    • 22929
    #1

    CS-2560 Dark Copies & Spots

    This machine has been bugging the crap out of me, an ongoing thing over the last 4 months.

    Stratos Main Charge Loss 001.jpg

    I'd change a primary unit, or just do a thorough cleaning and the image quality would clean right up (for a day or two). It's had two different used drum units, two primary charge units, and each time the image quality would clean up. I had the delusion that I was fixing something.

    I wasn't entirely wrong though. It was a primary charge issue (charge loss), just not what I was doing. There is a contact on the rear frame that connects with a contact on the rear of the drum unit. The contact on the rear frame was slightly flattened, and there was some obvious arcing. At first I wanted to remove the rear frame contact to examine it, then my common sense kicked in. I would have had to remove the laser, and possibly strip the back of the machine to gain access to the contact strip.

    Stratos Primary Charge Arcing.JPG

    I was able to re-shape the contact with dental picks, then clean off the corrosion with a diamond grit file. I hope it's a good long term fix, because it looks like a PITA to get the contact strip off. I hope this helps somebody. =^..^=
    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 =^..^=
    Tags: act, change, copies, file, fixing, image, image quality, issue, laser, quality, time, unit
    • JR2ALTA
      Service Manager

      Site Contributor
      1,000+ Posts
      • Feb 2010
      • 2028
      #2
      Awesome. Why do you think it only effected half the page? Did all those little dots clear up amongst the dark clouds?

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 22929
          #3
          Yes, the dots did disappear. That what was blowing my mind. I knew for certain that it was some sort of primary charge grid or wire issue, yet it kept coming back in a very similar incarnation, even with new parts.

          I don't have a good explanation why it was darker at the machine rear. On the first few calls I thought it might be the customer fiddling with the primary charge cleaner, but that produces the opposite effect. Dark at front, normal at rear, but the dots are clearly visible. Definitely related. =^..^=
          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

            • dickierock
              Trusted Tech

              Site Contributor
              250+ Posts
              • Jan 2010
              • 252
              #4
              Hi, had something very similar,think it was the prongs of the contact in the rear of the machine can somehow slip into the small opening in the black plastic holder behind the prongs giving poor contact with the charge unit.The solution was to cover the hole with a small square of stickybacked plastic.Think there is a bulletin about this issue.Anyways had this ongoing for a long time on one machine until this fix,no issues now for 5 months.

                Comment

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