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  1. #1
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    ¿c654 Fuster Bushing & Upper Pressure Roller?

    *title edit (cannot change)****¿c654 Fuser Bushing & Upper Pressure Roller?**

    I am "rebuilding" two c654 fusers, but cannot find two parts.

    The important part is the bushing for the soaking roller (the black roller between the white cleaning roller and the inside or "lower" orange roller.
    I don't know that the material is, but I have seen it recently in motors for laminators and it is GARBAGE.

    Additionally I cannot find the outside or "upper" orange/pressure roller (perhaps I am blind?).
    (I only need one as one has what looks like a puncture wound about 1.5mm in size; however, I gently cut it smooth and does not affect print quality--amazingly.)

    Also, curious on opinions regarding simply cleaning the white felt-like cleaning roller? They look pretty sturdy, just crusty. Never played with one new, are the bristles supposed to be soft or stiff?

    As always, thanks!

  2. #2
    Service Manager 1,000+ Posts Bix's Avatar
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    Re: ¿c654 Fuster Bushing & Upper Pressure Roller?

    The fuser is supplied as a single block

  3. #3
    Service Manager 5,000+ Posts tsbservice's Avatar
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    Re: ¿c654 Fuster Bushing & Upper Pressure Roller?

    Quote Originally Posted by Bix View Post
    The fuser is supplied as a single block
    He "rebuilds", either by making from two or more worn fusers one good, or buying aftermarket parts and changing bad ones.
    But bushings and such can be tricky to find supplier.
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  4. #4
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    Re: ¿c654 Fuster Bushing & Upper Pressure Roller?

    Quote Originally Posted by tsbservice View Post
    He "rebuilds", either by making from two or more worn fusers one good, or buying aftermarket parts and changing bad ones.
    But bushings and such can be tricky to find supplier.
    Exactly, still haven't found the "upper" orange roller (but was busy today so haven't looked further).
    I actually replaced the bushing and bearing for the black soaking roller by using one of those little black clutches used between the separation roller on a paper feed section (A00J563500).

    The shaft itself was worn down to about half its original diameter due to the bushing failing (why the clutch works worry free). I plan on grinding down two of the brass busing for a paper feed section and JB welding together onto the shaft (grinding to the ID of the bearing not the shaft). Just a side weekend experiment I will try to remember to take some picts if it works

    It is amazing that engineering did not machine the shaft so it would not grind on the side of the bearing to eliminate the need of a bushing. This is the only reason I can figure for this, but even at that, why in the world they didn't use a brass bushing is beyond me. I get cost, but something that is supposed to be relatively high yield, they really screwed the pooch on that one.

    Further looking at various used cx50 and up series fuser cleaning rollers I have; I made the educated guess that the bristles are not doused with any oil...
    Quote Originally Posted by Bix View Post
    The fuser is supplied as a single block
    Yeah I know

  5. #5
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    Re: ¿c654 Fuster Bushing & Upper Pressure Roller?

    I've rebuilt several with aftermarket sleeved rollers, belts,etc. Also aftermarket cleaning roller & brush roller (copylite). As you know what happens with these is the weird bushing you are talking wears then shaft is direct contact with bearing, metal to metal. There are bulletins addressing this and made part #'s for that bushings, etc. Supposedly the bushing material is different and is a different color now.

    I would say they miscalculated when designing this fuser, thinking that cleaning setup would last 1.2 million pages! You are lucky to get 200K before needing to rebuild the cleaning part of the fuser. I do think you could get 1.2 mil or more out of those fusers if you check and change the cleaning & brush rollers. And of course any bushing, bearings, etc. that look worn.

  6. #6
    Senior Tech 100+ Posts escalante's Avatar
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    Re: ¿c654 Fuster Bushing & Upper Pressure Roller?

    Which of the two bushingsIMG-20190622-WA0044.jpg

    Enviado desde mi SM-J701M mediante Tapatalk

  7. #7
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    Re: ¿c654 Fuster Bushing & Upper Pressure Roller?

    The red circle is one that K/M changed material.

  8. #8
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    Re: ¿c654 Fuster Bushing & Upper Pressure Roller?

    It's the yellow square in your picture that I've see fail:

    bizhub C654e bushing_1.JPGbizhub C654e bushing_2.JPG

    =^..^=
    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 =^..^=

  9. #9
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    Re: ¿c654 Fuster Bushing & Upper Pressure Roller?

    Quote Originally Posted by blackcat4866 View Post
    It's the yellow square in your picture that I've see fail:

    bizhub C654e bushing_1.JPGbizhub C654e bushing_2.JPG

    =^..^=
    Hey BC, think you have them backwards. The brush roller uses a black bushing only and that is in the yellow square. They do fail but not nearly as often as the teflon cleaning roller which uses a bushing inside a bearing and that is in the red circle. Also the picture on your post clearly shows this. I have done so many of these I could do blindfolded!

  10. #10
    Master Of The Obvious 10,000+ Posts


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    Re: ¿c654 Fuster Bushing & Upper Pressure Roller?

    Quote Originally Posted by copyman View Post
    Hey BC, think you have them backwards. The brush roller uses a black bushing only and that is in the yellow square. They do fail but not nearly as often as the teflon cleaning roller which uses a bushing inside a bearing and that is in the red circle. Also the picture on your post clearly shows this. I have done so many of these I could do blindfolded!
    You're right. Often as not, the shaft is so damaged that replacement bushings and bearings are not enough. The first clue is the squeaking. The second clue is the immediate pile of rust when you set the fuser on the countertop. =^..^=
    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 =^..^=

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