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  1. #1
    Service Manager 1,000+ Posts
    C308 unresponsive touch screen everywhere except CE mode


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    C308 unresponsive touch screen everywhere except CE mode

    C308.

    Unresponsive touch screen.

    The touch is unresponsive and even opening front door doesn't display the open cover message. After about 30 seconds it eventual becomes responsive again.

    Replaced the touch screen

    Ran the Stop Clear 1166 Start calibration.

    Still occurring. It hasn't got any C code errors at all this year.

    Would bad RAM do it?

    I seem to recall having same issue on a 4 series and from memory it was bad SSD?

  2. #2
    KonicaMinolta Senior Tech 500+ Posts srvctec's Avatar
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    Re: C308 unresponsive touch screen everywhere except CE mode

    Quote Originally Posted by rrrohan View Post
    C308.

    Unresponsive touch screen.

    The touch is unresponsive and even opening front door doesn't display the open cover message. After about 30 seconds it eventual becomes responsive again.

    Replaced the touch screen

    Ran the Stop Clear 1166 Start calibration.

    Still occurring. It hasn't got any C code errors at all this year.

    Would bad RAM do it?

    I seem to recall having same issue on a 4 series and from memory it was bad SSD?
    First thing I'd do is re-secure all plugs to MFPB, memory, HDD (both ends of connectors) and pretty much anything connected to the MFPB. It's crazy how many times doing this has fixed issues for me over the years. Also, check the cable to the control panel and maybe switch it out if you have a spare machine to take one from.
    Started in the copier service business in the fall of 1988 and have worked at the same company since then, now the senior tech, since 2004.

  3. #3
    Service Manager 1,000+ Posts
    C308 unresponsive touch screen everywhere except CE mode


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    Re: C308 unresponsive touch screen everywhere except CE mode

    i think the cable and screen are good because when in service mode it works 100% perfectly its only in standard operating mode its is screwy.

  4. #4
    KonicaMinolta Senior Tech 500+ Posts srvctec's Avatar
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    Re: C308 unresponsive touch screen everywhere except CE mode

    Might have to do a clear all data (after backing up any one touches) and see if that fixes it.
    Started in the copier service business in the fall of 1988 and have worked at the same company since then, now the senior tech, since 2004.

  5. #5
    Field Supervisor 500+ Posts Woxner's Avatar
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    Re: C308 unresponsive touch screen everywhere except CE mode

    firmware has been known to fix this. also backup HDD and do logical formate

  6. #6
    Service Manager 5,000+ Posts
    C308 unresponsive touch screen everywhere except CE mode

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    Re: C308 unresponsive touch screen everywhere except CE mode

    Quote Originally Posted by rrrohan View Post
    C308.

    Unresponsive touch screen.

    The touch is unresponsive and even opening front door doesn't display the open cover message. After about 30 seconds it eventual becomes responsive again.

    Replaced the touch screen

    Ran the Stop Clear 1166 Start calibration.

    Still occurring. It hasn't got any C code errors at all this year.

    Would bad RAM do it?

    I seem to recall having same issue on a 4 series and from memory it was bad SSD?
    We've seen a failing HDD cause this, you could try unplugging it see if this has any affect.

    As others have said there is a firmware bug known to cause random HDD errors etc you might also want to try that.

    Bizhub C258 C308 C368 SATA errors.pdf
    Let us eat, drink, and be merry, because tomorrow we may die!

    For all your firmware & service manual needs please visit us at:

    www.copierfirmware.co.uk - www.printerfirmware.co.uk




  7. #7
    Service Manager 1,000+ Posts
    C308 unresponsive touch screen everywhere except CE mode


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    Re: C308 unresponsive touch screen everywhere except CE mode

    ill try hdd and a initialization. cheers for the tips ill let you know. always better to replace hdd before it dies fully anyway

  8. #8
    Service Manager 1,000+ Posts
    C308 unresponsive touch screen everywhere except CE mode


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    Re: C308 unresponsive touch screen everywhere except CE mode

    i disabled the hdd and it seemed to work well. i formatted hdd and re imported settings and movie data. so far so good

  9. #9
    Service Manager 1,000+ Posts Gift's Avatar
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    Re: C308 unresponsive touch screen everywhere except CE mode

    Good to know, thanks. I think there was a panel freeze bug when this series came out and that "slide menu" was activated but that has been fixed via FW ages ago.

  10. #10
    Senior Tech 250+ Posts
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    Re: C308 unresponsive touch screen everywhere except CE mode

    I had unresponsive touch screen caused by network/router issue.
    The moment I unplugged the network cable screen became responsive again.
    Network port tested on another ndtwork and worked OK.

    Just an additional info....

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