C454e Cyan prints

[positiveg]

Happy New Year to all.
Hope it's going well


We got a colour drum for the 454 so I was like let me run a cyan print to see what it will look like and if that's the drum needed changing. Cause I think we changed all the rest larder.
This is how it came out https://uploads.tapatalk-cdn.com/20210114/70881599502935f74b87d73d73889b93.jpghttps://uploads.tapatalk-cdn.com/20210114/f3fd8170a4a324809fddd1bde4579068.jpg

Sent from my SM-G955F using Tapatalk

[copier tech]

Happy New Year to all.
Hope it's going well


We got a colour drum for the 454 so I was like let me run a cyan print to see what it will look like and if that's the drum needed changing. Cause I think we changed all the rest larder.
This is how it came out https://uploads.tapatalk-cdn.com/20210114/70881599502935f74b87d73d73889b93.jpghttps://uploads.tapatalk-cdn.com/20210114/f3fd8170a4a324809fddd1bde4579068.jpg

Sent from my SM-G955F using Tapatalk

You will need to replace the cyan developer unit.

But check this bulletin for the most likely cause it failed.

47864

[tech51]

The developer unit is no good.

I would replace the developer unit, drum and toner filter.

Vacuum out the ports on the drive unit for the toner filtration as well.

[tsbservice]

You will need to replace the cyan developer unit.


And maybe few other things.

[positiveg]

Thanks guys I figured will be something like this. As something similar happen on black unit a few months back. I got a new drum so it's just the unit and definitely check to see if there's a leak as well. Cause this went from 100 to 0 just like that

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[Phil B.]

classic case of a bed dev unit

[copier tech]

Thanks guys I figured will be something like this. As something similar happen on black unit a few months back. I got a new drum so it's just the unit and definitely check to see if there's a leak as well. Cause this went from 100 to 0 just like that

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See the bulletin I attached, if you don't address this issue you will be replacing dev units not stop way before they reach life.

[rrrohan]

Make sure the Dev box has to black dots by part number so you have the latest revision.

Sent from my Pixel 4 XL using Tapatalk

[copyman]

Happy New Year to all.
Hope it's going well


We got a colour drum for the 454 so I was like let me run a cyan print to see what it will look like and if that's the drum needed changing. Cause I think we changed all the rest larder.
This is how it came out https://uploads.tapatalk-cdn.com/20210114/70881599502935f74b87d73d73889b93.jpghttps://uploads.tapatalk-cdn.com/20210114/f3fd8170a4a324809fddd1bde4579068.jpg

Sent from my SM-G955F using Tapatalk

Like the others said the cyan developer dumped. Make sure "any" over life consumables are replaced as well or it will dump again. It can be any other over life drum or transfer belt that will short out causing it to crash. Usually the cyan developer unit that takes the hit! You can use a good one from another machine or since new are so expensive (around $500) you can convert a less expensive black dev unit into any color. Search this forum I've posted procedure here before. or PM me

[allan]

Vacuum out the ports on the drive unit for the toner filtration as well.


Most techs neglect to do this after it over tones the firsts time. That leads to future failures.
It can dump an unbelievable amount of toner in the suction port that need to clear toner dust from the parts on the drum.

[tsbservice]

Make sure the Dev box has to black dots by part number so you have the latest revision.

Sent from my Pixel 4 XL using Tapatalk

Any bulletin about this?

[positiveg]

You will need to replace the cyan developer unit.

But check this bulletin for the most likely cause it failed.

47864Not getting access to the file. When I'm logged out shows me it's a pdf file. When I log in shows up like file is corrupted.

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[Oystercopy]

The last couple times I had this issue, and it seems to happen more with Cyan for some reason, I replaced the DRUM and the Developer Unit together, and I have not heard back from the customers/machines. There was a bulletin floating around regarding lost HVT connections, but I never went that far.
OC

[copyman]

The last couple times I had this issue, and it seems to happen more with Cyan for some reason, I replaced the DRUM and the Developer Unit together, and I have not heard back from the customers/machines. There was a bulletin floating around regarding lost HVT connections, but I never went that far.
OC

I've never had it be the HVPS. Always over life consumables. 90% of the time it's the Cyan dev that crashes. Only thing that makes sense why mostly Cyan is location in machine. I've had black dev crash 2 times, yellow & magenta 1 time each. Cyan maybe 30 times. Usually ok with just replacing developer & drum of the color that crashes.

[tsbservice]

I've never had it be the HVPS. Always over life consumables. 90% of the time it's the Cyan dev that crashes. Only thing that makes sense why mostly Cyan is location in machine. I've had black dev crash 2 times, yellow & magenta 1 time each. Cyan maybe 30 times. Usually ok with just replacing developer & drum of the color that crashes.
Most probably internal machine airflow firstly contaminating Cyan drum grid and from there chain reaction is triggered, machine increase potential of drum and developer is sucked.

[copier tech]

Not getting access to the file. When I'm logged out shows me it's a pdf file. When I log in shows up like file is corrupted.

Sent from my SM-G955F using Tapatalk

Link works fine. PM if you need a copy with the firmware.

[copier tech]

Not getting access to the file. When I'm logged out shows me it's a pdf file. When I log in shows up like file is corrupted.

Sent from my SM-G955F using Tapatalk

Link works fine. PM if you need a copy with the firmware.

[afterhours]

I had the same problem. The developer is depleted. I Replaced the filters, drum, but didn't want to spend the money on a new DV unit so I got an old bad Cyan developer unit and poured some of its developer in the depleted one. Honestly, I eye balled it and it worked. Problem solved no issues in over a year.

Sent from my SM-G981U using Tapatalk

[rrrohan]

Any bulletin about this?Not read it myself but supervisor told me. Apparently changed seals and the way it distributes toner around

I'll link it on monday

Sent from my Pixel 4 XL using Tapatalk

[rrrohan]

Here is pic of parthttps://uploads.tapatalk-cdn.com/20210118/ea317fbdb2d4f252b7eed1e82ee1621f.jpg

Sent from my Pixel 4 XL using Tapatalk

[copier tech]

I had the same problem. The developer is depleted. I Replaced the filters, drum, but didn't want to spend the money on a new DV unit so I got an old bad Cyan developer unit and poured some of its developer in the depleted one. Honestly, I eye balled it and it worked. Problem solved no issues in over a year.

Sent from my SM-G981U using Tapatalk

You can actually use developer from most Bizhub models, I even used some from an old C552 cyan image unit I was about to throw away!

So now before I throw these units away I decant out the old developer & use it to top up depleted ones.

[Bix]

You can actually use developer from most Bizhub models, I even used some from an old C552 cyan image unit I was about to throw away!

So now before I throw these units away I decant out the old developer & use it to top up depleted ones.


How do you go about dividing the developer from the toner? With a magnet?

[copier tech]

How do you go about dividing the developer from the toner? With a magnet?

Well no, pretty much all KM toner is the same.

Believe it or not I have even used the waste toner to top up depleted dev units as that's where the developer ends up. I only do this as a last resort, it takes a lot more to top up as there is a lot more toner in the waste than developer. The machine will now obviously have too much toner & will be brown! However running around 50 full bleed prints out of the colour I topper up the prints will eventually look perfect again.

[Bix]

This is interesting. I have found it easy to replace the toner bottle cap. So theoretically they are doing this just to get money spent on new toners? I hope there is a difference.

[Gift]

Well no, pretty much all KM toner is the same.

Believe it or not I have even used the waste toner to top up depleted dev units as that's where the developer ends up. I only do this as a last resort, it takes a lot more to top up as there is a lot more toner in the waste than developer. The machine will now obviously have too much toner & will be brown! However running around 50 full bleed prints out of the colour I topper up the prints will eventually look perfect again.

Kinda like converting goold old C253 series imaging units back in the days. Theres also "non oem" dev available - tried that a few times with no issues occuring (surpringsingly^^).

[copier tech]

Kinda like converting goold old C253 series imaging units back in the days. Theres also "non oem" dev available - tried that a few times with no issues occuring (surpringsingly^^).

Not sure I would trust compatible developer, even my way is a bodge, its still using genuine KM developer.

[allan]

Well no, pretty much all KM toner is the same.

Believe it or not I have even used the waste toner to top up depleted dev units as that's where the developer ends up. I only do this as a last resort, it takes a lot more to top up as there is a lot more toner in the waste than developer. The machine will now obviously have too much toner & will be brown! However running around 50 full bleed prints out of the colour I topper up the prints will eventually look perfect again.

That is some MacGuyver moves there.
Well when the going gets rough....

[allan]

Kinda like converting goold old C253 series imaging units back in the days. Theres also "non oem" dev available - tried that a few times with no issues occuring (surpringsingly^^).


Now the toners are not all the same. Up to the C253 range the toner is not changeable with the newer stuff. Been there done that and cried.
All the current toner is just if it has developer add or not. TN414 works on TN015 and in reverse then TN414 works on the color machines like a C364.

[copier tech]

That is some MacGuyver moves there.
Well when the going gets rough....

Oh yeah deffo not recommended but has dug me out of a hole a few times, especially now when getting parts ordered are delayed due to some virus or something.

[allan]

How do you go about dividing the developer from the toner? With a magnet?


Never done it but i think trowing it in a bowl of water could help. Skim off the floating toner and the dev should drop to the bottom.
Then sundry the developer?

[copier tech]

Never done it but i think trowing it in a bowl of water could help. Skim off the floating toner and the dev should drop to the bottom.
Then sundry the developer?


Ha Ha i'm not that brave, however I will try that at home, I guess then dry the dev in a saucepan on very low heat, will feel like i'm gold mining if nothing else!

[tsbservice]

Never done it but i think trowing it in a bowl of water could help. Skim off the floating toner and the dev should drop to the bottom.
Then sundry the developer?

Lol it will rust and give you 5th color CMYKR :cool:

[srvctec]

Here is pic of parthttps://uploads.tapatalk-cdn.com/20210118/ea317fbdb2d4f252b7eed1e82ee1621f.jpg

Sent from my Pixel 4 XL using Tapatalk

Just checked ours and they all have just one black dot on all the color developing unit boxes. I'm guessing the 2 black dots is the latest and greatest?