Developer unit

[Rohullah]

Hi everyone
I have a problem with konica 6500, K developer unit. The toner is not coming to developer, so developer charge DV powder instead of toner for print, no signal, no error
I have attached pictures.
Thanks
20190912_200717.jpg20190912_200914.jpg

[Phil B.]

Re: Developer unit

Hi everyone
I have a problem with konica 6500, K developer unit. The toner is not coming to developer, so developer charge DV powder instead of toner for print, no signal, no error
I have attached pictures.
Thanks
[ATTACH=CONFIG]43563[/ATTACH][ATTACH=CONFIG]43564[/ATTACH]

so what have you tried?

[Rohullah]

Re: Developer unit

so what have you tried?

I have run Auto developer charge
Toner density sensor
Auto gamma adjustment
Toner refresh

[Phil B.]

Re: Developer unit

I have run Auto developer charge
Toner density sensor
Auto gamma adjustment
Toner refresh

unless you are a trained tech.. you are in above your head.

first thing I would have done is verify the supply tube from toner -> dev unit isn't clogged. messy messy job

[Rohullah]

Re: Developer unit

unless you are a trained tech.. you are in above your head.

first thing I would have done is verify the supply tube from toner -> dev unit isn't clogged. messy messy job

I have checked that with vacuum, the tube is open, even there is no signal or error for lack of K toner

[Rohullah]

Re: Developer unit

Also, while refreshing toners, the K toner not move. But no signal

[Phil B.]

Re: Developer unit

I have checked that with vacuum, the tube is open, even there is no signal or error for lack of K toner

you could have fried the sensor when you were vaccuming out the dev unit..

did you look at bias setting in service mode?

[Rohullah]

Re: Developer unit

you could have fried the sensor when you were vaccuming out the dev unit..

did you look at bias setting in service mode?

No i didnt checked bias, i will do that
Thanks

[Albonline]

Re: Developer unit

No i didnt checked bias, i will do that


Thanks

there are 2sets of interlocks on the toner tube door, the ps iis seen by the copier, the ms is not. if the micro switch is not made the toner motors will not turn. also there are icps on the toner driver board.check them.

[Rohullah]

Re: Developer unit

there are 2sets of interlocks on the toner tube door, the ps iis seen by the copier, the ms is not. if the micro switch is not made the toner motors will not turn. also there are icps on the toner driver board.check them.

Thanks Albonline
C,M,Y toners are moving, just K is not moving

[Toxic]

Re: Developer unit

Did you change developer when execute this commands Auto developer charge and
Toner density sensor or you just run that randomly?
I ask because you should only run toner density init after replace new developer and machine store readings of new TCR in that moment.
Thats why in service mode strictly says dont run any print after developer replace before run toner density init.

edit:is my monitor or eyes bad but on first photo i see 2 cyan circle patterns?

[Rohullah]

Re: Developer unit

Did you change developer when execute this commands Auto developer charge and
Toner density sensor or you just run that randomly?
I ask because you should only run toner density init after replace new developer and machine store readings of new TCR in that moment.
Thats why in service mode strictly says dont run any print after developer replace before run toner density init.

edit:is my monitor or eyes bad but on first photo i see 2 cyan circle patterns?

Sir, i have cleaned Developer and charged new Powder, than i have runed that items.
there is 1 Cyan and Other which i outlined is black, but because there is no toner, its printing DV powder instead of toner, that's why it seems cyan. Thats the problem now.

[Albonline]

Re: Developer unit

Sir, i have cleaned Developer and charged new Powder, than i have runed that items.
there is 1 Cyan and Other which i outlined is black, but because there is no toner, its printing DV powder instead of toner, that's why it seems cyan. Thats the problem now.

check the icps on the toner driver board.