bizhub C452, C2253

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  • blackcat4866
    Master Of The Obvious

    Site Contributor
    10,000+ Posts
    • Jul 2007
    • 22999
    #16
    Re: bizhub C452, C2253

    ** follow up **

    Going in the right direction. After installing the PRCB and loading firmware the color drum motor now spins during initialization, but still errors out with the same error. I'm thinking that the motor speed is being detected on the color drum motor M16 itself. There may have been some kind of a short in the motor itself taking out the PRCB.

    After a few times of powering up and watching it spin, I thought I'd better not continue or I'll blow the new PRCB also. M16 is on order. More to follow. =^..^=
    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

      • JR2ALTA
        Service Manager

        Site Contributor
        1,000+ Posts
        • Feb 2010
        • 2031
        #17
        Re: bizhub C452, C2253

        Originally posted by blackcat4866
        ** follow up **

        Going in the right direction. After installing the PRCB and loading firmware the color drum motor now spins during initialization, but still errors out with the same error. I'm thinking that the motor speed is being detected on the color drum motor M16 itself. There may have been some kind of a short in the motor itself taking out the PRCB.

        After a few times of powering up and watching it spin, I thought I'd better not continue or I'll blow the new PRCB also. M16 is on order. More to follow. =^..^=
        Only Konica's can a customer call in with a broken Waste Bottle Flag and....

          Comment

          • blackcat4866
            Master Of The Obvious

            Site Contributor
            10,000+ Posts
            • Jul 2007
            • 22999
            #18
            Re: bizhub C452, C2253

            Originally posted by JR2ALTA
            Only Konica's can a customer call in with a broken Waste Bottle Flag and....
            This has been a real old fashioned mind bender. I started out on Mita copiers where you could open up one of those nice 36 x 48 circuit diagrams and follow every wire and circuit trace, without even being in the same county as the copier. Sans a good circuit diagram, I've resorted to holding the power supply up to a bright light, following the traces, and drawing "maps" of the component configuration. =^..^=
            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

              • blackcat4866
                Master Of The Obvious

                Site Contributor
                10,000+ Posts
                • Jul 2007
                • 22999
                #19
                Re: bizhub C452, C2253

                The combination of the PRCB, color drum motor, and firmware brought it back. A gradation brought back the copy quality. It would have been even better it it hadn't taken 4 calls to conclude.

                I mis-spoke in the first post: it's a color drum motor, not color developer motor.
                Thanks to everyone that posted. =^..^=
                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

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