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mearmi
03-12-2019, 08:50 PM
konica c284 Fuser/exit section squeaking noise when idle

please advise

thanks

Phil B.
03-12-2019, 09:09 PM
konica c284 Fuser/exit section squeaking noise when idle please advise thanks

what have you tried?
in idle the exit section shouldn't be turning...

mearmi
03-12-2019, 09:16 PM
what have you tried?
in idle the exit section shouldn't be turning...

changed Fuser Unit.

in idle mode. Which gears are turning?
Thanks

Phil B.
03-12-2019, 09:20 PM
changed Fuser Unit.
in idle mode. Which gears are turning? Thanks

i just said there shouldn't be any turning .. fuser connected to exit drive.

are you sure it isn't a FAN squeaking?
have you removed cover on that end to get a better idea of WHERE the squeak is coming from?

other than replacing fuser
WHAT HAVE YOU DONE?

Synthohol
03-12-2019, 09:20 PM
the fuser rotates so it wont develop flat spots.
i find the oil roller bushings are the squeaky culprit. replace them with brass and a drop of fuser oil. done.
in worse cases i remove the oil roller assy totally and know i will have to replace the fuse in a month or two.

Phil B.
03-12-2019, 09:24 PM
the fuser rotates so it wont develop flat spots.
i find the oil roller bushings are the squeaky culprit. replace them with brass and a drop of fuser oil. done.
in worse cases i remove the oil roller assy totally and know i will have to replace the fuse in a month or two.

maybe I don't understand his term of 'idle'.. the fuser only rotates periodically to prevent flat spots.. not constantly right?

maybe 'idle' is cool down or prepare to print cycle?

nothing should constantly be turning ....

tsbservice
03-12-2019, 11:07 PM
the fuser rotates so it wont develop flat spots.
i find the oil roller bushings are the squeaky culprit. replace them with brass and a drop of fuser oil. done.
in worse cases i remove the oil roller assy totally and know i will have to replace the fuse in a month or two.

He said the Fuser was replaced, maybe with new, maybe not.

copyman
03-12-2019, 11:11 PM
I just fired up a C284 in my shop to see operation:

Haven't had many issues with the C284 fusers making noise.
The fusers rollers don't turn all the time just every so often to prevent flat spots. Exit/fuser rollers stop immediately after last page exits and mostly exhaust fans run for a min or so, then goes into idle with sounds like just a fan running and every so often the fuser will advance slightly. There are adjustments to set how long it runs after last page exits. Doubt a fan would make a "squeaking" noise. Maybe something else is turning but not sure what it could be, only thing that would make sense is the fuser turning. But it stops and pressure is released from fuser roller & belt. You can jump the side door interlock and watch operation.

Also don't think there are cleaning rollers inside the C224/284/364/454 fusers like the IH heating type fusers C554/654/754 which have the cleaning & brush rollers that are replaceable and usually cause of noises. There was a bulletin with new style bushings for the brush roller & cleaning roller inside the C554/654/754 iducter fusers. These were poor designed fusers based on same footprint from the C451, etc!

blackcat4866
03-12-2019, 11:30 PM
Do you see rust here?

42025

You may need to replace clutch CL8.

42026

=^..^=

Phil B.
03-12-2019, 11:43 PM
I just fired up a C284 in my shop to see operation:

Haven't had many issues with the C284 fusers making noise.
The fusers rollers don't turn all the time just every so often to prevent flat spots. Exit/fuser rollers stop immediately after last page exits and mostly exhaust fans run for a min or so, then goes into idle with sounds like just a fan running and every so often the fuser will advance slightly. There are adjustments to set how long it runs after last page exits. Doubt a fan would make a "squeaking" noise. Maybe something else is turning but not sure what it could be, only thing that would make sense is the fuser turning. But it stops and pressure is released from fuser roller & belt. You can jump the side door interlock and watch operation.

Also don't think there are cleaning rollers inside the C224/284/364/454 fusers like the IH heating type fusers C554/654/754 which have the cleaning & brush rollers that are replaceable and usually cause of noises. There was a bulletin with new style bushings for the brush roller & cleaning roller inside the C554/654/754 iducter fusers. These were poor designed fusers based on same footprint from the C451, etc!Hell fans have squeaked in puter.. power sups..printers copiers as long as I have been working on them for DECADES.. sorry Dude.. I call bullshit on that part of your statement



Sent from my SM-G960U using Tapatalk

copyman
03-13-2019, 01:22 AM
No need to say sorry for your opinion. That's what these forums are for. But dude, those type of fans, they will make noises but not "squeak". That is why I put in parentheses. I maintain maybe 75 - 100 of them and never heard a fan "squeak" in a 4 series. You will get noises from the fuser area mostly and 2nd most common is if it has a floor finisher FS-534 or 535 the transport bed bushings will "squeak" and annoying as hell. That's about the only noises I've heard in the 4 series since they been out 5-6 yrs.
I guess you can call this post bullshit as well if you like. Public forums all about opinions dude!

I wanted to add maybe a squeak or squeal is different in everyone's opinion, my definition would be like metal to metal, but the type of fans used in copiers now a days, i.e. brushless, etc don't have metal touching metal parts?

copier addict
03-13-2019, 02:02 AM
No need to say sorry for your opinion. That's what these forums are for. But dude, those type of fans, they will make noises but not "squeak". That is why I put in parentheses. I maintain maybe 75 - 100 of them and never heard a fan "squeak" in a 4 series. You will get noises from the fuser area mostly and 2nd most common is if it has a floor finisher FS-534 or 535 the transport bed bushings will "squeak" and annoying as hell. That's about the only noises I've heard in the 4 series since they been out 5-6 yrs.
I guess you can call this post bullshit as well if you like. Public forums all about opinions dude!

You have been incredibly lucky. I have had plenty of fuser issues on this series. I have actually had to replace two because of bearing failures. I opened the right hand door and had ball bearings fall on the floor.

copyman
03-13-2019, 02:41 AM
Perhaps lucky but most of my accounts are low volume. Probably overkill for some of them but have my customers educated about paying more up front and getting 5-7 yrs out of a machine with just putting toners in. Nothing else. It's worked out good. And seems by over selling the customer is always happy, well most of the time ha-ha.

I've had a few fusers go prematurely or the stock customer was running ruined fuser but not many for how many machines I have.

tsbservice
03-13-2019, 09:33 AM
the fuser rotates so it wont develop flat spots.
i find the oil roller bushings are the squeaky culprit. replace them with brass and a drop of fuser oil. done.
in worse cases i remove the oil roller assy totally and know i will have to replace the fuse in a month or two.


He said the Fuser was replaced, maybe with new, maybe not.

I have to correct my post regarding Fuser noise in this case. He maybe used old and worn out Fuser for test.
Fuser on these idles at low speed and do noise. I have two C224e in our shop and one of them is quiet other not that much.
The noise is more like low humming/scrape in my case, but can imagine that later it will develops.

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