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  1. #1
    Step aside, noob 1,000+ Posts EarthKmTech's Avatar
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    c3350i adf failing to bring pickup rollers back up

    noticing this is a common theme in dusty environments.

    the reverse torsion clutch, the first one on the shaft after the main drive gear gets a groove on the insert that the spring runs on. There is then insufficient torque applied to the pickup roller assembly in the reverse direction to overcome the spring pressure of the home position hook. This results in the rollers permanently hanging down instead of returning upwards after sheets are fed.

    What i am doing when I have no parts to fix it, is reducing the spring tension of the home position hook by cutting 3-4 loops off the spring. Lubrication of the hook with silicon grease can also assist but is not as effective as the spring tension reduction.

    i have pictures but too hard to post on this forum.

  2. #2
    Service Manager 5,000+ Posts
    c3350i adf failing to bring pickup rollers back up

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    Re: c3350i adf failing to bring pickup rollers back up

    Quote Originally Posted by EarthKmTech View Post
    noticing this is a common theme in dusty environments.

    the reverse torsion clutch, the first one on the shaft after the main drive gear gets a groove on the insert that the spring runs on. There is then insufficient torque applied to the pickup roller assembly in the reverse direction to overcome the spring pressure of the home position hook. This results in the rollers permanently hanging down instead of returning upwards after sheets are fed.

    What i am doing when I have no parts to fix it, is reducing the spring tension of the home position hook by cutting 3-4 loops off the spring. Lubrication of the hook with silicon grease can also assist but is not as effective as the spring tension reduction.

    i have pictures but too hard to post on this forum.
    When this happens I use WD-40 you would think this would make it worse but it does the trick.

    30 second fix.
    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




  3. #3
    Step aside, noob 1,000+ Posts EarthKmTech's Avatar
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    Re: c3350i adf failing to bring pickup rollers back up

    Quote Originally Posted by copier tech View Post
    When this happens I use WD-40 you would think this would make it worse but it does the trick.

    30 second fix.
    you blast that reversing torsion clutch with the wd-40?

    I guess it might be washing the filth or or doing something else like making the spring grip better. How long does this last? This is a mine site so i would be concerned about even more dust being attracted to anything oily

  4. #4
    Service Manager 5,000+ Posts
    c3350i adf failing to bring pickup rollers back up

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    Re: c3350i adf failing to bring pickup rollers back up

    Quote Originally Posted by EarthKmTech View Post
    you blast that reversing torsion clutch with the wd-40?

    I guess it might be washing the filth or or doing something else like making the spring grip better. How long does this last? This is a mine site so i would be concerned about even more dust being attracted to anything oily
    Exactly that, my theory is, as you say WD-40 flushes the rust away & creates new surface for the clutch to grip.

    I also have had the same success using IPA/Alcohol spray.

    Try this, if it works for you walk away, or advise your client this was a temporary fix & that you'll return with new parts (the clutch etc)
    Last edited by copier tech; 01-18-2021 at 10:30 AM.
    Let us eat, drink, and be merry, because tomorrow we may die!

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

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  5. #5
    Master Of The Obvious 10,000+ Posts
    c3350i adf failing to bring pickup rollers back up

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    Re: c3350i adf failing to bring pickup rollers back up

    WD40= water drier formula 40

    It doesn't lubricate anything. It does attack most plastics, and what is a a copier made most of? Plastic!

    The only thing I use it for is to make over-worn rubber rollers work a little better while waiting for the new rollers to arrive. It does a pretty good job of dissolving fused toner off of the fuser inlet guides.
    =^..^=
    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 =^..^=

  6. #6
    Service Manager 5,000+ Posts
    c3350i adf failing to bring pickup rollers back up

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    Re: c3350i adf failing to bring pickup rollers back up

    Quote Originally Posted by blackcat4866 View Post
    WD40= water drier formula 40

    It doesn't lubricate anything. It does attack most plastics, and what is a a copier made most of? Plastic!

    The only thing I use it for is to make over-worn rubber rollers work a little better while waiting for the new rollers to arrive. It does a pretty good job of dissolving fused toner off of the fuser inlet guides.
    =^..^=
    Well no, the WD means 'Water Displacement'

    The DF clutch in this post is a metal, so a spring clutch, WD-40 works a treat. (lubricating it)

    Homepage - WD-40 Company
    Let us eat, drink, and be merry, because tomorrow we may die!

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

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  7. #7
    Service Manager 2,500+ Posts
    c3350i adf failing to bring pickup rollers back up


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    Re: c3350i adf failing to bring pickup rollers back up

    Quote Originally Posted by blackcat4866 View Post
    WD40= water drier formula 40

    It doesn't lubricate anything. It does attack most plastics, and what is a a copier made most of? Plastic!

    The only thing I use it for is to make over-worn rubber rollers work a little better while waiting for the new rollers to arrive. It does a pretty good job of dissolving fused toner off of the fuser inlet guides.
    =^..^=
    I've been using WD-40 on plastic for years and never had a problem, i.e. to clean labels off covers, baked on toner. And what I've been doing lately is right before delivering copier I wipe down the covers with it. Makes them look like new! Never had a problem with eating ANY plastic.

    WD-40 has over 1,000 uses. Heck I've even heard of people rubbing into their knees, etc to help with arthritis pain!

  8. #8
    Service Manager 5,000+ Posts
    c3350i adf failing to bring pickup rollers back up

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    Re: c3350i adf failing to bring pickup rollers back up

    Quote Originally Posted by copyman View Post
    I've been using WD-40 on plastic for years and never had a problem, i.e. to clean labels off covers, baked on toner. And what I've been doing lately is right before delivering copier I wipe down the covers with it. Makes them look like new! Never had a problem with eating ANY plastic.

    WD-40 has over 1,000 uses. Heck I've even heard of people rubbing into their knees, etc to help with arthritis pain!
    I totally agree, it does not dissolve plastic.

    We buy/sell laptops & use WD-40 to clean up the plastic, even on the TFF screen never had an issue.

    There used to be a cleaning solvent called amberclean, this was awful stuff extremely strong, it looked very similar to the foam cleaner & if you spayed this on pretty much any plastic it would ruin it. I think they banned it now.
    Let us eat, drink, and be merry, because tomorrow we may die!

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

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  9. #9
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: c3350i adf failing to bring pickup rollers back up

    Will not believe it but simply remove those white (or black) fingers that drops to create a back stop for the document.
    Or i am thinking of a another model.
    Whatever

  10. #10
    Service Manager 5,000+ Posts
    c3350i adf failing to bring pickup rollers back up

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    Re: c3350i adf failing to bring pickup rollers back up

    Quote Originally Posted by allan View Post
    Will not believe it but simply remove those white (or black) fingers that drops to create a back stop for the document.
    Or i am thinking of a another model.
    From memory they have done away with those now on this new i series.
    Let us eat, drink, and be merry, because tomorrow we may die!

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

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