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  1. #1
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    Intermittent C9404 code on C754

    This machine intermittently has a C9404 code which also can be a C9403. Machine wont clear code by resetting, have to go into Service mode and do a system error clear to get it running again. When its not in error the CIS works fine. Service manual says that when you replace the CIS unit you should run CCD Calibration for the CIS unit. You do this by setting the values set prior to shipping. On this machine those values come up as zeros for the CIS. I've checked other machines and they have some data in these fields. I'm not sure if this is significant or not but if I were to put a new CIS (expensive) in this machine I wouldn't be able to run this adjustment since no data appears to be stored. Has anyone exchanged a CIS and made this adjustment? Is there a way to restore this data? Is there firmware or a tech. bulletin to fix this issue? This is not an "E" model. any help would be appreciated.

  2. #2
    Senior Tech 250+ Posts
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    Re: Intermittent C9404 code on C754

    Must upgrade firmware to K7

  3. #3
    Vulcan Inventor of Death 1,000+ Posts Mr Spock's Avatar
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    Re: Intermittent C9404 code on C754

    Quote Originally Posted by antone View Post
    Must upgrade firmware to K7
    K7 is only available on the "e" version.
    I have had to replace the cis and the the little power supply to get rid of this code.
    Also flash to latest firmware (version 72 or e4 I think).
    And Star Trek was just a tv show...yeah right!

  4. #4
    Senior Tech 250+ Posts
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    Re: Intermittent C9404 code on C754

    K6 worked for me

  5. #5
    Field Supervisor 2,500+ Posts
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    Re: Intermittent C9404 code on C754

    Not on a C754e, and BTW, the firmware usually doesn't help if you are already seeing the codes...Replace the CCD assy. Emujo
    If you don't see your question answered in the forum, please don't think it's OK to PM me for a personal reply...I do not give out firmware and/or manuals.

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