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denvertan
12-02-2019, 04:05 PM
I have few of this copier having "Bizzzzz...." sound at specific internal at the right of machine.
The "Bizzz..." sound is clearly audible in some of the copier.:p

Any idea how can I fix it ?

Phil B.
12-02-2019, 04:16 PM
I have few of this copier having "Bizzzzz...." sound at specific internal at the right of machine.
The "Bizzz..." sound is clearly audible in some of the copier.:p

Any idea how can I fix it ?

sure it wasn't a BUZZZ or Zizzzzzt?

you really expect us to help with that GRAND accounting of your problem?

have you compared the sound to the timing chart in the SM?
did you pull covers in that area to better define the issue?

post a video of sound
what are page counts on the supplies/parts?
what have you done to try and isolate the problem?

as much as you post here, you should be well aware of the prerequisites to requiring help.

mo0651
12-02-2019, 04:24 PM
They are BIZZZhubs. LOL sounds like a power supply cooling fan may have popped loose.:cool:

Bix
12-02-2019, 04:25 PM
Hi, it depends on what kind of noise you hear. A video could help


I have had several C364e with a hum coming from the power supply. If instead it comes from the fuser, you could try to adjust the Warp Up in the Service Mode (from Mode 1 to Mode 2, from mode 2 to mode 3 etc.)

DigiMan
12-02-2019, 06:47 PM
They are BIZZZhubs. LOL sounds like a power supply cooling fan may have popped loose.:cool:

Damn you beat me to it!

tsbservice
12-02-2019, 07:19 PM
They are BIZZZhubs. LOL sounds like a power supply cooling fan may have popped loose.:cool:


Damn you beat me to it!
Me too!

JR2ALTA
12-02-2019, 07:46 PM
Known issue on many bizhubs. I'm not a current KM tech but it was a capacitor on the power supply I think. It would buzz every 30 seconds or so. Sounded like a bug zapper. I think there was a update or bulletin in sure someone here can help.

copyman
12-02-2019, 11:10 PM
Normal noise from power supply. Well not really normal but for Kon/Min it is.

Wanted to add that I believe the noise happens when the fuser lamps / inductherm sys turns on and off. When sitting idle it happens periodically turning fuser on / off.

If on the 554 and higher the squealing noise from fuser drive drowns it out so don't hear the customer complain as much. I had an electrical contracter almost sue me over a C220 buzzing to a point it was also buzzing at the circuit breaker. Once I saw that I had no choice but to take back machine and refund money. That wasn't normal. Would of sucked if a Biz C220 burned down a brand new building!

allan
12-03-2019, 02:03 AM
Its the TRIAC controlling the lamp current.
The white silicone blobs on the power supply capacitors and coils help to keep them from vibrating to much.
Really eerie noise, customers complain about it.

denvertan
12-03-2019, 02:49 AM
Current meter is @
552,251 for total black
382,843 for total colour

The sound happen in 5 second internal.

https://youtu.be/4EvaA_gh3vE

The sound is clearer when am nearer to this area of this board.
44258

copier addict
12-03-2019, 04:52 AM
There is a bulletin concerning this issue.

Problem
Abnormal faint buzzing/crackling noise.

Solution
CAUSE: Transformer on the DCPS.

SOLUTION: Perform the following setting in Service Mode.
1. Enter Service Mode.
2. Select Machine.
3. Select Heater Control Level.
4. Set from Level 1 to Level 4.
5. Power machine OFF/ON.




I have tried this "fix" on several machines. It has actually solved the problem a couple times.

denvertan
12-03-2019, 01:04 PM
There is a bulletin concerning this issue.

Problem
Abnormal faint buzzing/crackling noise.

Solution
CAUSE: Transformer on the DCPS.

SOLUTION: Perform the following setting in Service Mode.
1. Enter Service Mode.
2. Select Machine.
3. Select Heater Control Level.
4. Set from Level 1 to Level 4.
5. Power machine OFF/ON.




I have tried this "fix" on several machines. It has actually solved the problem a couple times.

Do you have the bulletin to shaee wirh me ?

copiertec
12-03-2019, 01:57 PM
Do you have the bulletin to shaee wirh me ?

Copier Addict just offered you a solution to your problem! Now you ask him for the TSB? How about thanking him and trying what he has suggested! ... After all it was just Thanksgiving here in the USA.

copier addict
12-03-2019, 02:40 PM
Do you have the bulletin to shaee wirh me ?

That is the bulletin, I just copied and pasted it here.

Copier repairman
12-03-2019, 04:27 PM
There is a bulletin concerning this issue.

Problem
Abnormal faint buzzing/crackling noise.

Solution
CAUSE: Transformer on the DCPS.

SOLUTION: Perform the following setting in Service Mode.
1. Enter Service Mode.
2. Select Machine.
3. Select Heater Control Level.
4. Set from Level 1 to Level 4.
5. Power machine OFF/ON.


I have tried this "fix" on several machines. It has actually solved the problem a couple times.

If you switch to Level 4, you will hear less or no sound.

denvertan
12-03-2019, 05:13 PM
Thank you all for such great help.

I am really really appreciating all help given to me.

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