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

[Tech Helpdesk]

This bulletin was recently released.

It basically says not to let ANY unit run over life & keep the FW up to date.

Most of my Bizhub users have high expectations so I replace all units before they cause a print quality issue, hence I rarely see this issue.

Attachment 36145

I don't understand why this bulletin was recently released as my bulletin KM UK was dated 25th March 2015 and it is word for word the same as yours. If you were fortunate to be at the Dealer meeting last year KM Japan admitted that you cannot run any of the units over 150% of life.
With these machines you can get away with a lot providing you replace the drums between 100 and 150% (latest) , TBU at around 100-150%, and feed the machine decent toner and you will be able to reset the units for a second life comfortably.

[Drcopy]

I have just read all the posts from the start, because one of my techs is now having this issue with the cyan depleting and causing print quality problem.
Replaced the parts mentioned in this thread and as we speak now updating the firmware, drum life (C,M,Y,K) are below 100% as well.

Waiting to hear from the tech after the update.

[Drcopy]

I have just read all the posts from the start, because one of my techs is now having this issue with the cyan depleting and causing print quality problem.
Replaced the parts mentioned in this thread and as we speak now updating the firmware, drum life (C,M,Y,K) are below 100% as well.

Waiting to hear from the tech after the update.

Just recieved confirmation firmware made no difference.

[copier tech]

The firmware wont correct a faulty dev unit, the firmware is designed to prevent a future cyan dev failure.

You will still need to replace the cyan dev unit, or as I do keep the old units, pour out the dev & use it to top out others as they fail, its a cheap option but works very well.

[Tech Helpdesk]

The firmware wont correct a faulty dev unit, the firmware is designed to prevent a future cyan dev failure.

You will still need to replace the cyan dev unit, or as I do keep the old units, pour out the dev & use it to top out others as they fail, its a cheap option but works very well.

Good news, Katun are selling developers for the black units now !!!!

[copier addict]

Good news, Katun are selling developers for the black units now !!!!

Now, that's just asking for trouble. Lol

[femaster]

Now, that's just asking for trouble. Lol

Was thinking the same thing. With as many issues as they have with the OEM stuff, I wouldn't even want to fathom the problems with non-OEM!

Sent from Tapatalk.

[rinser]

Has anyone come to a solid conclusion on what causes these cyan developers to fail?

We have a few of these causing problems,

On one 224e machine, only the drums were over life and the developer failed at 27k mono 65k colour, the machine was running oem toner

We replaced the following:
Cyan Dev
all drum units
High Voltage board
updated the fw

but the problem returned after 35k again.

any ideas?

[habik]

Has anyone come to a solid conclusion on what causes these cyan developers to fail?

We have a few of these causing problems,

On one 224e machine, only the drums were over life and the developer failed at 27k mono 65k colour, the machine was running oem toner

We replaced the following:
Cyan Dev
all drum units
High Voltage board
updated the fw

but the problem returned after 35k again.

any ideas?

Try vacuuming the ducts and change TX belt + TR.

[jonbonse]

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!

Can you get colour dev rather than buying the whole dev unit then?