C224e/C284e/C364e/C454e/C545e cyan dev unit problems

[padedwalls]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Just attended corporate training on these segments... was told of issues with shutters (traps) not opening properly on toner install. Symptom given is depletion of Dev units... check them ''traps" & key op customer on proper toner bottle replacement. Perhaps the Cyan bottles are coming from MFG with poor design & poor shutter contact. Good luck! Word was that this is easy for customer to induce!

[yianni]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Same issue here.

[copier tech]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

70 MFD's with the same fault & at differant locations?

There must be something that links them, a local power issue, your toner supplier?

[hotfuser]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

I am very interested in following this problem, but fortunately my company has had no issues. we must have 100 out there.

Thanks for the interest in this thread.
I am very confused with this issue.
There is no rhyme or reason why this is happening it just not make sense as it only seems to be the cyan unit failing.
It seems to be frailing at around 60k onwards.
I have now had over 70 fail on a MIF of over 300.

[JR2ALTA]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

I am very interested in following this problem, but fortunately my company has had no issues. we must have 100 out there.

[allan]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

I had a C360 that did that on a cyan tank. The tank was empty when i replaced it. Striped out the laser to see where the machine dumped the dev but found nothing. I removed the HV board and cleaned all the conection points. The problem never came back. Check for corosion on the HV contacts mabe bad shipping caused corosion.

[hotfuser]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

No problem on my machines. The toner add does not work together it is the same as C360 only change is the reed switches was changed to Photo interuptors because of the developer bieng added to the toner it would get stuck to the magnet inside the sub hopper. Are you reseting the dev tanks? >dealer trick = buy only black Dev tanks and convert to color much cheaper<. The sensors cant see color only density!

No i am not resetting these units as they seem to be failing about 60k onwards.
Where the units should last 420k premature failure is becoming a bit of an issue.

[hotfuser]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Hi,

Iv also run into this problem on a c454. Spent weeks fitting parts, especially cyan dev units that drain the developer.

Recently had a KM Rep down for this and we went through the machine, checking the operation of the toner hopper section.
All seemed Ok, levels were fine. He then advised to change the HV board along with a new cyan dev unit. A week has passed and we have not heard from the customer (touch wood). Although I'm not entirely convinced it has solved the issue, I to would like to know if anyone else has experienced this problem, and how they resolved it. Spent so much money on parts for this.


Nick

Thanks Barber.

i had changed everything too on one specific machine. This was a C364e i also had a KM tech spec visit it had 4 dev units in all in a period of 6 weeks.
The copier was taken back to factory settings and re set up with the latest firmware.
This has beeen ok since but im not convinced.
This seems very unusual as it is only Cyan units i am have fail.

[allan]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

No problem on my machines. The toner add does not work together it is the same as C360 only change is the reed switches was changed to Photo interuptors because of the developer bieng added to the toner it would get stuck to the magnet inside the sub hopper. Are you reseting the dev tanks? >dealer trick = buy only black Dev tanks and convert to color much cheaper<. The sensors cant see color only density!

[barber782]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Hi,

Iv also run into this problem on a c454. Spent weeks fitting parts, especially cyan dev units that drain the developer.

Recently had a KM Rep down for this and we went through the machine, checking the operation of the toner hopper section.
All seemed Ok, levels were fine. He then advised to change the HV board along with a new cyan dev unit. A week has passed and we have not heard from the customer (touch wood). Although I'm not entirely convinced it has solved the issue, I to would like to know if anyone else has experienced this problem, and how they resolved it. Spent so much money on parts for this.


Nick

[hotfuser]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

Still having cyan units fail.
there has got to be a problem out there.
Now KM are out of stock does this not start ringing alarm bells.
it cannot be me that is having this isuue.
wait in anticipation.

many thanks guys

[vagner]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

check reveals biases in revealing the fine adjust the service mode, lack of grounding contacts in the unit fail the correct polarization of bias, already got equipment that contacts the machine background were bad had to cirrigi them and everything is back to function properly, as this so this happening to a unit specifically.

[habik]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

How does the toner container looks like? The shutter especially!
When the Cyan dev was depleted, was there any toner in the toner hopper?

I have suspicion that you may have some faulty batch of toner cartridges. I went to see customer who could not turn the cartridge inside machine. Initially thought that they misplaced color cartridges. When went there the shutter would not open properly when turned forcefully the first time.


Sent from my iDon't believe in marketing device using Tapatalk

[witech1]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

just wanted to see if anything has changed with the status of the dev units you were having trouble with. I now have 3 machines in the same building with the same problem as you have described except it is a black dev unit, all readings are fine but CQ is poor and this would be the 2nd dev unit on 2 out of 3 machines and I have opened tickets with KM.

[hotfuser]

Re: C224e/C284e/C364e/C454e/C545e cyan dev unit problems

HotFuser any news since last week ?

I'm experincing problems on 2 machines (C454e), the developer is lasting only 250K pages (out of expected 590k) on all colors , the environment conditions are not the best . The machines are on a air-conditioned cabin on a construction site , room temp set to around 22 deg C (72 F), but it is a very dusty environment. We have also other models on the same site , but never faced problems concerning Dev Yield (life)

Does someone has any clue ?

Many tks,

No nothing. It is very unusual that no one else had had this issue. I have checked my orders and since release i have ordered 62 cyan units aginst 12 of all the other colours.