Canon IR-9070 strange CQ problem

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  • antonfer
    Junior Member
    • Sep 2019
    • 2

    [CQ] Canon IR-9070 strange CQ problem

    Hello,,
    Have a IR-9070 with this strange cq problem..
    First 2 prints come out with little background and 3 lines running on sides (these lines are somehow offset from the 3 stripper fingers under the drum)..all following prints are dark back ground and double image on prints, problem is when printing and copies as well.
    Work done sofar: Replaced all the coronas, replaced the dev housing, swapped the whole drum assembly from another machine, reseat all connectors on HV Board, checked all values on copier > adjust all are ok
    Note: if pot control turned off..all prints come out blank!
    Anny help or ideas appreciated.
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