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  1. #1
    Junior Member
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    C35 Not printing Yellow

    Anyone here help me out?
    I have a C35 that isnt printing yellow at all.
    Unit does not have any errors. Everything looks good with the IU/Toner.

    Where should I start first? I cant tell if its in the PU, HVPS, or maybe I have a bad IU.

    Thoughts? Appreciated.

    Jason

  2. #2
    Service Manager 2,500+ Posts
    C35 Not printing Yellow

    Synthohol's Avatar
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    Re: C35 Not printing Yellow

    i would start with an IU. then the belt unit.

  3. #3
    Senior Tech 250+ Posts
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    Re: C35 Not printing Yellow

    After IU check contacts from IU to HV board.
    What is IU life anyway?

  4. #4
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: C35 Not printing Yellow

    Had this before.
    Broken part inside the transfer belt unit. The levers that puts pressure on the yellow transfer roller.
    But sometimes will give a half print if one side is broken.
    I have fixed it with glue before but not worth the time.
    Just lift the belt and have a peek compare the yellow with the rest.
    Whatever

  5. #5
    Service Manager 5,000+ Posts
    C35 Not printing Yellow

    Phil B.'s Avatar
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    Re: C35 Not printing Yellow

    Quote Originally Posted by jpotts View Post
    Anyone here help me out?
    I have a C35 that isnt printing yellow at all.
    Unit does not have any errors. Everything looks good with the IU/Toner.
    Where should I start first? I cant tell if its in the PU, HVPS, or maybe I have a bad IU.
    Thoughts? Appreciated.
    Jason
    why do newbie techs ALWAYS look to boards first....
    much like you car .. it will be better to diagnose the issue than heading straight to $$$$$ parts.
    have you checked in SM the operation of parts?
    are the supply lines clogged?

    K.I.S.S.

  6. #6
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    Re: C35 Not printing Yellow

    Quote Originally Posted by Phil B. View Post
    why do newbie techs ALWAYS look to boards first....
    Because when I was going through it I found a broken trace because the PCB was cracked at the screw mount.
    I fixed it.


    much like you car .. it will be better to diagnose the issue than heading straight to $$$$$ parts.

    have you checked in SM the operation of parts?
    Yep. surprisingly the SM for the C35 gives you more about issues with the scanner and fax machine than anything else.
    Its pretty weak at best. not really helpful when most of the flowchart concludes with "replace printer"


    are the supply lines clogged?
    All clear

    K.I.S.S.
    Thanks for the pro tips and assistance

  7. #7
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    Re: C35 Not printing Yellow

    Quote Originally Posted by Toxic View Post
    After IU check contacts from IU to HV board.
    What is IU life anyway?
    62% on the Yellow.

  8. #8
    Service Manager 5,000+ Posts
    C35 Not printing Yellow

    Phil B.'s Avatar
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    Re: C35 Not printing Yellow

    Quote Originally Posted by jpotts View Post
    Thanks for the pro tips and assistance
    Well.
    Good catch on the broken trace..sorry if I knew that wouldn't have queried.
    Glad to see some still can diag/repair such..

    Sent from my SM-G960U using Tapatalk

  9. #9
    Service Manager 5,000+ Posts
    C35 Not printing Yellow

    Phil B.'s Avatar
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    Re: C35 Not printing Yellow

    Quote Originally Posted by jpotts View Post
    Thanks for the pro tips and assistance
    So did the repaired trace fix the prob.. or are you still stuck?

    Sent from my SM-G960U using Tapatalk

  10. #10
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    Re: C35 Not printing Yellow

    Last time I had an issue with one of those machines not printing a single colour, it was the drive coupling on the back wall which is spring loaded, it was stuck in and not engaging the IU drive.

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