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Thread: C1085

  1. #1
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    C1085

    Hello all. Does anyone have active solutions for a press c1085 they'd be willing to share? I'm have a heck of an issue.

    C4661 error. New registration sensors. New pwcb, new belt, swapped drums, new charge rollers. I'm out of ideas.

    Thanks for the help.

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    Re: C1085

    Yes,if you have SM search for this sensors.
    Remove and clean Intermediate transfer belt encoder sensor/2 (PS82) and Intermediate transfer belt encoder sensor/1 (PS81) problem solved 99%.
    Its pain in the as... to remove them from the rear side but it must be done.
    Last edited by Toxic; 03-23-2019 at 03:23 PM.

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    Re: C1085

    Quote Originally Posted by Toxic View Post
    Yes,if you have SM search for this sensors.
    Remove and clean Intermediate transfer belt encoder sensor/2 (PS82) and Intermediate transfer belt encoder sensor/1 (PS81) problem solved 99%.
    Its pain in the as... to remove them from the rear side but it must be done.
    At the price of sounding foolish, Is that accessible through the back of the machine where the fly wheels are?

    The manual doesn't show that being a possibility for C4661. Are you fairly certain its a possibility?

    Thank you for helping!

  4. #4
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    Re: C1085

    Have same problem recently on C1085.
    I dont have my log book to look now but i think it was this error C-4661 and sometimes C-2220.
    When machine rarely managed to turn on without errors prints have high color registration mismatch,that guide us to think about this sensors fault readings.
    Before, i tried to replace color registration sensors,no success,check transfer belt...
    Solution was to clean this sensors,and yes you have to access from back.
    You can get to them without too much disassembly but can not clean proper without removing them out completely.
    My colleague done that and i take a look from time to time and i see its pretty much hard to remove them (must remove board,fly wheels,some cable harness,...)
    Can not guarantee with my life that is your problem too but i am pretty sure.
    After all you done already worth trying this at least and if it solve your problem you can thank me

    Ps:i have more than once situations when solution was not written in service manual.

  5. #5
    Senior Tech 100+ Posts alamsandhu's Avatar
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    Re: C1085

    Quote Originally Posted by afterhours View Post
    Hello all. Does anyone have active solutions for a press c1085 they'd be willing to share? I'm have a heck of an issue.

    C4661 error. New registration sensors. New pwcb, new belt, swapped drums, new charge rollers. I'm out of ideas.

    Thanks for the help.
    check any of the Primary roller out of Position. Check for the DC Blocks inside the 1st Transfer Belt..!!!

  6. #6
    Senior Tech 100+ Posts Haroldbfix's Avatar
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    Re: C1085

    Quote Originally Posted by Toxic View Post
    Have same problem recently on C1085.
    I dont have my log book to look now but i think it was this error C-4661 and sometimes C-2220.
    When machine rarely managed to turn on without errors prints have high color registration mismatch,that guide us to think about this sensors fault readings.
    Before, i tried to replace color registration sensors,no success,check transfer belt...
    Solution was to clean this sensors,and yes you have to access from back.
    You can get to them without too much disassembly but can not clean proper without removing them out completely.
    My colleague done that and i take a look from time to time and i see its pretty much hard to remove them (must remove board,fly wheels,some cable harness,...)
    Can not guarantee with my life that is your problem too but i am pretty sure.
    After all you done already worth trying this at least and if it solve your problem you can thank me

    Ps:i have more than once situations when solution was not written in service manual.
    I know its been awhile. Where you able to find out what caused the issue.

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    Re: C1085

    In my case cause of this is dusty environment and there is tobacco smoke also so sensors get dirty very fast.
    That is my theory and this sensors is very sensitive and looks like small mirrors and when we get them put we can see reflective sensor surface was blurry ,not shine like it should be.
    Some ear cleaning sticks done the cleaning job.

  8. #8
    Senior Tech 100+ Posts Haroldbfix's Avatar
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    Re: C1085

    Quote Originally Posted by Toxic View Post
    In my case cause of this is dusty environment and there is tobacco smoke also so sensors get dirty very fast.
    That is my theory and this sensors is very sensitive and looks like small mirrors and when we get them put we can see reflective sensor surface was blurry ,not shine like it should be.
    Some ear cleaning sticks done the cleaning job.
    ok thanks I give that a try.

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