Utax 2500ci kyocera taskalfa 2251ci c7911

[KYO_OEM]

if still present, remove step by step each Dv and DK , TR and Fuser until you see correct serialnumbers.
Maybe 1 DV or DK breaks the serial communication line.
Maybe yellow or bk Dv is faulty
i hate this error, have had 2 cases like this, after mounting from MK kit suddenly C791x.
Also after mounting back from original parts...
Finally we used these systems for trash.

[avio2]

[QUOTE = KYO_OEM; 1374976] se ancora presente, rimuovi passo dopo passo ogni Dv e DK, TR e Fuser fino a visualizzare i numeri di serie corretti.
Forse 1 DV o DK interrompe la linea di comunicazione seriale.
Forse giallo o bk Dv è difettoso,
odio questo errore, ho avuto 2 casi come questo, dopo il montaggio dal kit MK improvvisamente C791x.
Anche dopo il montaggio da parti originali ...
Finalmente abbiamo usato questi sistemi per la spazzatura. [/CITAZIONE]
ok good idea i try

[KYO_OEM]

IC2 structure.JPG

[avio2]

[QUOTE = KYO_OEM; 1374835] a proposito,
perché non hai chiesto a Enrico / Milano se combatti contro UTAX 2500? [/ QUOTE]
usually I solve by myself anyway if you mean ok copy I asked he replied that he doesn't recognize the dv k however he will send me an engine to try

[avio2]

[QUOTE = KYO_OEM; 1374976] se ancora presente, rimuovi passo dopo passo ogni Dv e DK, TR e Fuser fino a visualizzare i numeri di serie corretti.
Forse 1 DV o DK interrompe la linea di comunicazione seriale.
Forse giallo o bk Dv è difettoso,
odio questo errore, ho avuto 2 casi come questo, dopo il montaggio dal kit MK improvvisamente C791x.
Anche dopo il montaggio da parti originali ...
Finalmente abbiamo usato questi sistemi per la spazzatura. [/CITAZIONE]
ok good idea i try

sn correct all part dv c-m-y dr c-m-y-k tr and fuser
only sn k is bad

you have a BIG HAMMER?

[KYO_OEM]

In this case:
BK DV broken or faulty drum developer relay pwb/ bad contact from connector....
Bad location from this PWB

[avio2]

In this case:
BK DV broken or faulty drum developer relay pwb/ bad contact from connector....
Bad location from this PWB

But i have repalce dlp pwb and conneciton pwb

Need a big hammer

[KYO_OEM]

sorry, i forgot it.
At the moment, in my company i am the one and only for support all over the world....too much work/ requests....
At your system somethng must break the serial communication line..
On friday i repaired incoming Iris 1/ 32ppm with still message "Yellow toner empty/ copy + printout only b/w possible" after yellow toner would replaced by endcustomer.
Field technicians replaced all related pwbs, toner hopper unit, several yellow toners, but no luck.
Finally we took back the system to our service center for repair by us.
I replaced each toner step by step
Yellow new----> toner yellow empty
Cyan new ----> Toner yellow empty
Magenta new --> Toner yellow empty
BK new ----> "adding toner" message and system works well again!!!
On status page you could see amount from BK = ~85%, but this cartridge/ RFID chip blocked the serial communication line
Maybe you also get running system after replacement from ALL DKs and DVs.
[One nice point from Jupiter 2: If you remove all DVs, DKs and TR you`ll see SN from FK unit by 117, 122 + 984! (japanese told us that no monitoring from FK serialnumber possible at Jupiter range)]