brand new machine out of the box.
Can save a lot of time by simply slipping the belt off and spinning the coupling in both directions by hand. If the noise is there you got your answer.
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brand new machine out of the box.
Can save a lot of time by simply slipping the belt off and spinning the coupling in both directions by hand. If the noise is there you got your answer. -
REACH FOR THE STARS!!!
Konica Minolta Planetariums!
https://www.konicaminolta.com/planet...gma/index.html -
Re: C250i tick tick tick at idle demo and cause
Ok, its done...
Do not replace with a new drive gear. In my case i made a modification.
If you make it for the first time calculate with 60min its really tight. And after i think you need about 35min maybe less with a bit practice.
1. take out fuser
2. take away upper and lower backcover
3. take out your drive gear, 4 cable-connections, 1 fan
4. put in washers to the movable gear to bridge the gap total 2.5mm with washers 6mm inside diameter, put in your drive gear
5. important! reseat the transferbelt again, or remove it at the beginning. (you get an error code, gap between gears)
6. enjoy the silents
Modifikation_occus.jpg
Now i'm off work and on the weekend... a longer test run will be done next week.Last edited by occus; 02-26-2021, 08:17 PM.Comment
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Re: C250i tick tick tick at idle demo and cause
I will be very interested how your mode is performing after few thousand prints. Please keep us informed.Ok, its done...
Do not replace with a new drive gear. In my case i made a modification.
If you make it for the first time calculate with 60min its really tight. And after i think you need about 35min maybe less with a bit practice.
1. take out fuser
2. take away upper and lower backcover
1. take out your drive gear, 4 cable-connections, 1 fan
2. put in washers to the movable gear to bridge the gap total 2.5mm with washers 6mm inside diameter
3. put in your drive gear
4. important! reseat the transferbelt again, or remove it at the beginning. (you get an error code, gap between gears)
5. enjoy the silents
[ATTACH=CONFIG]48447[/ATTACH]
Now i'm off work and on the weekend... a longer test run will be done next week.A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.Comment
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Re: C250i tick tick tick at idle demo and cause
So it's probably clicking at the helical gear face. That looks very similar to the 454e, 554e fuser drive packs, sans the clutches.
=^..^=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 =^..^=Comment
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Re: C250i tick tick tick at idle demo and cause
Are you sure it's okay in the long run? That detachment appears to be intended to allow the fuser roller hook to be flexible without creating damage. It could wear out the plastic quickly and create new squeaks in the futureOk, its done...
Do not replace with a new drive gear. In my case i made a modification.
If you make it for the first time calculate with 60min its really tight. And after i think you need about 35min maybe less with a bit practice.
1. take out fuser
2. take away upper and lower backcover
3. take out your drive gear, 4 cable-connections, 1 fan
4. put in washers to the movable gear to bridge the gap total 2.5mm with washers 6mm inside diameter, put in your drive gear
5. important! reseat the transferbelt again, or remove it at the beginning. (you get an error code, gap between gears)
6. enjoy the silents
[ATTACH=CONFIG]48447[/ATTACH]
Now i'm off work and on the weekend... a longer test run will be done next week.Comment
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Re: C250i tick tick tick at idle demo and cause
After a test of 3'000 papers in testmode the drive gear is still silent.
If you look at the detail metall motor gear and spaced plastik gear, this picture is before i put in the washers
before.jpg
and after
after.jpg
I had time today to play around.
On the original drive gear it works perfekt 100% silence. On the drive gear that i have ordered you can hear the ticking noise sometime but ony if you now there is a ticking noise so 95% silence.
@Bix
What do you mean with " to allow the fuser roller hook to be flexible without creating damage". I can't see any relation to the fuser roller?
Now i haven't time any more for this...
Open question:
- Why i got a new drive gear with the same problem? I guess this was delivered from stock with older production date. The older manufactured c250i does not have this ticking noise so it's not logical.
- will this mod persists more than 100'000 sheets
- maybe if you add spacer under the 4 screws on the motor plate you have the same effect and without removing the drive gear, it will be mucht faster.
Comment
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Re: C250i tick tick tick at idle demo and cause
1. Mine is just a hypothesis about the reason for that space. I am talking about the component indicated by the arrow.
arrow.jpg
To facilitate insertion of the fuser unit, it retracts inward. From what I have seen, the motor starts all those gears.
2. The problem also occurs in the second piece because perhaps the problem comes from somewhere else. Don't get me wrong. The problem is definitely in that area but maybe other part of the c250i pushes that gear incorrectly, always causing the noise.
For example, I have discovered that I have a defective paper exit unit. After replacing the fuser, the squeaking problem disappeared for a month. But strangely it's back. I took apart the paper exit unit and discovered that an internal plastic part was broken. So why had replacing the fuser solved my problem for a while? These are the mysteries of the machines.Comment
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Re: C250i tick tick tick at idle demo and cause
The space that i have fixed is not in relation with any other gear then the metal motor gear so i can't imaging, there is no reason not to try this modification.
Last friday i found out if you press the movable gear on the machine side the noise disappears immediately, thats why i fix the gear.
I guess the helical teeths runs not synchron, because the angles of the shafts are not perfect. Any change can make more or less tollerance.Comment
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Re: C250i tick tick tick at idle demo and cause
Hi occus, how your fix holds after some time? Do you have other machines like that?A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.Comment
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Re: C250i tick tick tick at idle demo and cause
Hi, it was the only one.
And yes the fix holds until today. The gear can't slip left/right on the axis anymore.Comment
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