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suomi
05-27-2021, 01:09 PM
Especially the magenta toner wears out quickly and fills the waste toner box...No error codes. Print quality is good

robinsonad86
05-27-2021, 02:17 PM
There's a bulletin about this on the KM tech site. Replace image unit following instructions and fw update

emujo2
05-27-2021, 03:12 PM
Check your TCR levels..if they are very high you will need to update f/w replace the IU and run the out of the box setup. You should be good to go after this (assuming you see very very high TCR ratios). E

copier tech
05-27-2021, 06:40 PM
Especially the magenta toner wears out quickly and fills the waste toner box...No error codes. Print quality is good

I've had this exact issue.

The resolution is to update the firmware (no surprise it's a KM) then run initialisation + stabilise with the paper tray out.

ionutkok
05-27-2021, 06:46 PM
Chek TCR value ( aprox 6.5 % is normal) for every color ! Update last firmware !

tsbservice
05-27-2021, 06:46 PM
As much as I like KonicaMinolta machines the ultimate resolution is to buy color A4 Ricoh MFPs. A4 color models simply aren't KM mainstream.

ionutkok
05-27-2021, 06:57 PM
As much as I like KonicaMinolta machines the ultimate resolution is to buy color A4 Ricoh MFPs. A4 color models simply aren't KM mainstream.

Which models? Some are more successful others are not. But for any model there are "good" service solutions.

I.M.

copier tech
05-27-2021, 10:47 PM
As much as I like KonicaMinolta machines the ultimate resolution is to buy color A4 Ricoh MFPs. A4 color models simply aren't KM mainstream.


Totally agree, when I install a new Ricoh MFP I very rarely need to go back.

suomi
05-28-2021, 01:27 PM
I've had this exact issue.

The resolution is to update the firmware (no surprise it's a KM) then run initialisation + stabilise with the paper tray out.





Paper tray out..Why??

I replaced the magenta drum unit. Update firmware GC2-E9. Clean the toner filter(full off magenta toner), change new M toner and waste toner box.
Now just waiting to see what happens...

B0265
05-28-2021, 03:13 PM
Paper tray out..Why??

If you pull out tray 1 and run "Initialize + Image Stabilization" the printer will perform the “High Speed Developer Stirring” (mixing toner and dev) for about 4 minutes.
This will (can) fix the TCR values and it might not be neccesary to replace the IU.

Sysco
05-28-2021, 07:13 PM
Same issue in my field machines with C3300i.
Print halftone pattern and if it is ok update fw.
The only help, if you can't see the first error messages when drop the machine which is 2555 or 2553 the fw. update to E9 and
change the IU unit to new..
If you catch the problem in the first time and not updated the fw version you need update to this and hope it's enought to the machines
not dropping to the developer from the IU unit.

suomi
05-28-2021, 08:47 PM
Same issue in my field machines with C3300i.
Print halftone pattern and if it is ok update fw.
The only help, if you can't see the first error messages when drop the machine which is 2555 or 2553 the fw. update to E9 and
change the IU unit to new..
If you catch the problem in the first time and not updated the fw version you need update to this and hope it's enought to the machines
not dropping to the developer from the IU unit.


The problem is that the device eats toner (magenta on this case). 3000 pages and 2 colors(magenta) and 2 waste toner boxes (full magenta)...Other colors OK(60%)
Print quality good. No error code. Toner filter full magenta toner (vacuumed all pipes etc)

Phil B.
05-28-2021, 08:51 PM
I'm surprised no one has asked this question!

are they using genuine OEM toner or some turd party toner?

B0265
05-28-2021, 09:37 PM
The problem is that the device eats toner (magenta on this case). 3000 pages and 2 colors(magenta) and 2 waste toner boxes (full magenta)...Other colors OK(60%)
Print quality good. No error code. Toner filter full magenta toner (vacuumed all pipes etc)
Have u checked the TCR values?

tsbservice
05-28-2021, 09:43 PM
I'm surprised no one has asked this question!

are they using genuine OEM toner or some turd party toner?

Not this time Phil. Those models are flawed even new machine will eat its install toners.

B0265
05-28-2021, 09:44 PM
I'm surprised no one has asked this question!

are they using genuine OEM toner or some turd party toner?
That is a relevant question, but in this case it is a known problem even if if you use oem toner.

copiertec
05-28-2021, 09:52 PM
I'm surprised no one has asked this question!

are they using genuine OEM toner or some turd party toner?

My first thought, when seeing the post.

suomi
05-28-2021, 11:21 PM
My first thought, when seeing the post.

20 years konica service now. I use orginal toner.

Phil B.
05-28-2021, 11:25 PM
ok thanks guys... i've been spanked enough ;-)

Sysco
05-29-2021, 07:47 AM
The problem is that the device eats toner (magenta on this case). 3000 pages and 2 colors(magenta) and 2 waste toner boxes (full magenta)...Other colors OK(60%)
Print quality good. No error code. Toner filter full magenta toner (vacuumed all pipes etc)
Update FW.

danifuenca
05-30-2021, 09:45 PM
We have a advice from KM Support to reseting PWB (remove and place again sure all contacts are in correct position)in all machines C3350i/C4050i because high toner consumtion

avecosat
05-31-2021, 07:35 AM
Always change a IU make a Image Stabilization

Albonline
06-02-2021, 01:46 PM
These models need to have gradation, done properly, at setup or they will never be right. save replacing all units and doing a proper setup.

jwai
06-25-2021, 08:35 AM
now i have one C450i also ate toner.
one new Y toner only used 1 week and about 10k copies.
the waste bottle are filled with Y toner.

robinsonad86
06-25-2021, 09:29 AM
Toner or dev?

jwai
06-25-2021, 04:43 PM
Toner or dev?

Toner.
New Y toner bottle got empty only 3 days and several thousand printout!! ( mainly office documents )
It flowed to waste bottle, and a thin toner coating on the surface of Y drum.
Exchanged the drum unit with M still the same.
TCR all are 6.XX%, ATVC CM are 20 K is 22 however Y is 16.

mascan42
06-27-2021, 01:48 AM
I'm having this with the yellow toner on multiple machines, all the same account. Yellow TCR is low, but only because customer keeps running it with the empty toner bottle, until it eventually codes out. Replacing the IU only seems to fix it temporarily.

I can't find any bulletin referring to this. What level firmware addressed the problem? All machines are at least G00-B5. Reluctant to update in the field because of the customer's custom UI.

jwai
06-27-2021, 05:50 AM
I'm having this with the yellow toner on multiple machines, all the same account. Yellow TCR is low, but only because customer keeps running it with the empty toner bottle, until it eventually codes out. Replacing the IU only seems to fix it temporarily.

I can't find any bulletin referring to this. What level firmware addressed the problem? All machines are at least G00-B5. Reluctant to update in the field because of the customer's custom UI.

Now it works with G00-B6.

Synaux
06-28-2021, 04:48 AM
Now it works with G00-B6.
C450i eat toner (https://www.copytechnet.com/forums/konica-minolta/157976-c450i-eat-toner.html)
Hrm.... okay?

jwai
06-28-2021, 04:31 PM
C450i eat toner (https://www.copytechnet.com/forums/konica-minolta/157976-c450i-eat-toner.html)
Hrm.... okay?

not yet, i added a bit y toner and took toner replenishing, the y tcr rised to 6.8%.
no toner coating on y drum but the tcr of c and m changed to 0.0X%!
got tcr toner supply they raised to 5.X% but p5,6,8 displayed.
m toner coated on transfer belt surface.

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