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  1. #1
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    FS-C8520 Magenta light on one side...

    hi, I've got a strange one too. I've got a FS-C8520 with a very light magenta, mainly on the rear side of the machine, I am in the process of ordering a new magenta dev unit. I've now had a closer look at the maint. report and noticed a whole lot of C7620 errors!!! the colour registration is not shifting at ALL, its just on the one side of the printouts that the magenta is far too light.
    can it be one of the ID sensors 1 or 2... (which one???) or the image transfer belt, or is it the magenta dev unit???

  2. #2
    Field Supervisor 1,000+ Posts Eric1968's Avatar
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    Re: FS-C8520 Magenta light on one side...

    If the density of the patterns on the transfer belt is too low, color registration will fail, so ordering a new magenta dev-unit is a good idea. Make sure the firmware is up to the latest.

  3. #3
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    Re: FS-C8520 Magenta light on one side...

    Firmware is up to date, the density is only real bad at the far edge of the page... In landscape mode, you can see it, in portrait mode it looks 100%
    its that error code 7620 that is bugging me... Don't know if replacing the dev unit will solve it. The machine only has 8000 prints on it...

  4. #4
    Field Supervisor 1,000+ Posts Eric1968's Avatar
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    Re: FS-C8520 Magenta light on one side...

    Found a bulletin about the C7620. I think this is your solution.
    Attached Files Attached Files

  5. #5
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    FS-C8520 Magenta light on one side...


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    Lightbulb Re: FS-C8520 Magenta light on one side...

    This Parts & Service manual can now be purchased for $12.77 and downloaded immediately after payment from:

    Just Manuals, The Internet's largest selection of manuals ~ Instant Downloads


    Paul@justmanuals.com

  6. #6
    Senior Tech 100+ Posts kaborwen's Avatar
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    Re: FS-C8520 Magenta light on one side...

    Quote Originally Posted by cmpelser View Post
    Firmware is up to date, the density is only real bad at the far edge of the page... In landscape mode, you can see it, in portrait mode it looks 100%
    its that error code 7620 that is bugging me... Don't know if replacing the dev unit will solve it. The machine only has 8000 prints on it...
    Check all so LSU M unit.

  7. #7
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    Re: FS-C8520 Magenta light on one side...

    It was bad power... I put in a ups and by the second day the machine was perfectly fine. The c7620 code never came back, and it's been running fine ever since...

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