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  1. #11
    Service Manager 1,000+ Posts
    Mpc3001 acc sheet

    teebee1234's Avatar
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    Re: Mpc3001 acc sheet

    The few times I've seen backgrounding on copies only was when the gray balance was whacked. I don't know that it would affect the calibration sheet but you should give it a check anyway.

    Background when ADS Mode is turned Off
    In Full Color the background is a process black, In Black and White mode the background is gray. With ADS on there is no evident backgrounding. When ADS is turned off and exposure is at the center setting, backgrounding is exhibited. Print Jobs and internal prints do not have background




    [Cause]
    The gray balance adjustment NV RAM Data has been corrupted and has reverted to the default value
    [Resolution]
    Reset the value of SP 4685 - 001 and 002, SP4686 - 001 and 002 and SP4687 - 001 and 002 to the value on the Factory Data Sheet.(Located under Jam Instruction Sheet on the Front Cover)
    If the Factory Data Sheet is not available try starting with these settings and fine tuning as needed.

    • SP4685-001 to -26 SP4685-002 to -26
    • SP4686-001 to -6 SP4686-002 to -6
    • SP4687-001 to -16 SP4687-002 to -16





  2. #12
    Trusted Tech 50+ Posts knobby's Avatar
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    Oct 2008
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    Cheers all...
    it was the BICU, swapped with office machine and fault went with it.

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