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  1. #1
    RTFM!! 2,500+ Posts allan's Avatar
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    Pro 951 C2206 and C2238

    Been driving me nuts on this one machine.
    Motor checks out the 2 sensors checks out. Mechanically the blade is free to move and as a habit I always leave it set in position 2. Will change the blade manually at around 500K. That blade switching patent is a service call waiting to happen.

    Read the trouble shooting guide and as per that i changed the short harness between the cleaning unit and the cradle.
    Its consistently intermittently. Will error out a bunch of times if not C2206 then C2238. Will fiddle with it and then it will be ok for weeks. Other wise it will happen once every other day. Changed the cleaning unit out twice now but with used parts with no history.

    Thinking to change out the drum cradle and cleaning unit at once.

    Any one know why it bombs out?
    Whatever

  2. #2
    Senior Tech 100+ Posts
    Pro 951 C2206 and C2238

    wjurls's Avatar
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    Re: Pro 951 C2206 and C2238

    There are about 6 different connections between the cleaning unit and the printer control board. Each connection drops a little voltage. It really doesn't take much to cause these errors as a result. We have had great success correcting this issue by simply hitting all the connections with "Deoxit" contact treatment.

    https://www.amazon.com/Hosa-D5S-6-De...6854535&sr=8-1

    You must also re-index the cleaning blade gears to the right position before powering the machine back up as well.

    Lee

  3. #3
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: Pro 951 C2206 and C2238

    Quote Originally Posted by wjurls View Post
    There are about 6 different connections between the cleaning unit and the printer control board. Each connection drops a little voltage. It really doesn't take much to cause these errors as a result. We have had great success correcting this issue by simply hitting all the connections with "Deoxit" contact treatment.

    https://www.amazon.com/Hosa-D5S-6-De...6854535&sr=8-1

    You must also re-index the cleaning blade gears to the right position before powering the machine back up as well.

    Lee
    Yes i remove the two screws holding the gear assy then let it drop back then reinstall it.
    Tend to agree with you about the contacts.
    Whatever

  4. #4
    Senior Tech 100+ Posts
    Pro 951 C2206 and C2238

    wjurls's Avatar
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    Re: Pro 951 C2206 and C2238

    Quote Originally Posted by allan View Post
    Yes i remove the two screws holding the gear assy then let it drop back then reinstall it.
    Tend to agree with you about the contacts.

    We have a fleet of over 100, 951's here and have seen this particular problem more times than we can count. Deoxit was our saving grace.

  5. #5
    Senior Tech 100+ Posts kmcopytech's Avatar
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    Re: Pro 951 C2206 and C2238

    IMG_20201202_111345.jpg

    Remove this circle. it's done!

    Good Luck!

  6. #6
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: Pro 951 C2206 and C2238

    Quote Originally Posted by kmcopytech View Post
    IMG_20201202_111345.jpg

    Remove this circle. it's done!

    Good Luck!
    You mean disable the retraction and let the blade run free on the drum?
    Whatever

  7. #7
    Master Of The Obvious 10,000+ Posts
    Pro 951 C2206 and C2238

    blackcat4866's Avatar
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    Re: Pro 951 C2206 and C2238

    Quote Originally Posted by kmcopytech View Post
    IMG_20201202_111345.jpg

    Remove this circle. it's done!

    Good Luck!
    Sure, you'll get past th the error code, but the blade will never flip at 500K.

    I've seen those sensors get dirty, and the blade flip mechanism can get caked in toner making it hard to move. We've also seen a few bad PRCB boards cause this. In all cases I've been able to trick the machine into thinking that the blade flipped, and it finishes the PM cycle with no problem. =^..^=
    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 =^..^=

  8. #8
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: Pro 951 C2206 and C2238

    Quote Originally Posted by blackcat4866 View Post
    Sure, you'll get past th the error code, but the blade will never flip at 500K.

    I've seen those sensors get dirty, and the blade flip mechanism can get caked in toner making it hard to move. We've also seen a few bad PRCB boards cause this. In all cases I've been able to trick the machine into thinking that the blade flipped, and it finishes the PM cycle with no problem. =^..^=

    I don't even bother with the automatic blade change any more. On a 951 i think its 375K and 1250 500K.
    The drums can do anything from 1.2M past 2M depending on environment, the blades fail before the drum.
    I just mark the blades properly and let it run in position 2 only. Blade can do 600K before the patches starts showing up on the copies.

    Was there this morning and did the same old thing, set it proper but this time i washed the harness and connectors in WD40.
    Must get some proper electrical spray first.

    Did not come back yet. Now more sure its an electrical contact issue.


    If you remove that linkage the blade will run against the drum with more pressure than normal i would think.
    The error codes can still occur with this removed.
    Whatever

  9. #9
    Senior Tech 100+ Posts kmcopytech's Avatar
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    Re: Pro 951 C2206 and C2238

    After removal,

    The machine has printed 2050K,

    It will be no more c2206 / C2238 error code.

    4b4697c8e71b1fdb697c50cc5956c91.jpg
    3ba797808788d4001c7320f8ac33049e.jpg
    16f2f77705f868d881b3d313fd41daf.jpg

  10. #10
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: Pro 951 C2206 and C2238

    Quote Originally Posted by kmcopytech View Post
    After removal,

    The machine has printed 2050K,

    It will be no more c2206 / C2238 error code.

    4b4697c8e71b1fdb697c50cc5956c91.jpg
    3ba797808788d4001c7320f8ac33049e.jpg
    16f2f77705f868d881b3d313fd41daf.jpg

    Will give that a go if nothing else solves the problem. Don't like the idea of the blade permanently running on the drum surface. But if it comes to that.
    Still need to get proper water repelling electrical spray. Must get what i can locally, Ordering stuff from ZA takes forever.

    After washing the connector and harness by submersing it in Q20(same as WD40 only better) the codes are gone for now.
    Leading me to belief that its a fault on the wiring.
    Whatever

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