Konica 1250 toner piles on charging unit sides after 5000 copies

[qaraman]

I have replaced the developing unit, a new charge unit, new cleaning unit assembly and a new drum, the problem still happens, I have also lowered the density to - 3, any ideas what should I do next? 48758487574875948756

[GIUBOSS]

I have replaced the developing unit, a new charge unit, new cleaning unit assembly and a new drum, the problem still happens, I have also lowered the density to - 3, any ideas what should I do next? 48758487574875948756

Genuine toner?

[qaraman]

Genuine toner?

Yes sir 100% Genuine.

[blackcat4866]

Have a look at the upper cleaning unit seal. It will wear to a tapered edge then fold over, and act like an additional charging device. =^..^=

[qaraman]

Have a look at the upper cleaning unit seal. It will wear to a tapered edge then fold over, and act like an additional charging device. =^..^=

Thanks for your reply, what you're saying makes sense, however the entire cleaner unit was replaced brand new for this issue.

[Woxner]

perhaps the transfer belt is not transfering all the toner also replace transfer belt rollers. 951 does same thing.

[qaraman]

perhaps the transfer belt is not transfering all the toner also replace transfer belt rollers. 951 does same thing.Thanks for the reply, do you suggest I should replace transfer belt and rollers too?

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[allan]

Thanks for the reply, do you suggest I should replace transfer belt and rollers too?

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If its done its yield or close to it. Not much to go wrong on the transfer belt assy.
The toner dusting in that area would suggest a problem on the cleaning unit the cause of it is unknown but check that there is nothing deforming the cleaning blade.

[qaraman]

If its done its yield or close to it. Not much to go wrong on the transfer belt assy.
The toner dusting in that area would suggest a problem on the cleaning unit the cause of it is unknown but check that there is nothing deforming the cleaning blade.Thank you, will check on Monday. Regards,

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[Albonline]

check the toner suction/anti misting system

[tulintron]

I have replaced the developing unit, a new charge unit, new cleaning unit assembly and a new drum, the problem still happens, I have also lowered the density to - 3, any ideas what should I do next? 48758487574875948756Dev ok / Charge ok / Cleaning Unit ok / Drum ok.

Filters?


Check the cleaning unit seals, check the developer unit cover blade.


Their work is in low coverage. Did you make any changes to DIPSW?


After replacing the above items, did you perform the replacement procedures correctly?


Belém do Pará?

[qaraman]

Dev ok / Charge ok / Cleaning Unit ok / Drum ok.

Filters?


Check the cleaning unit seals, check the developer unit cover blade.


Their work is in low coverage. Did you make any changes to DIPSW?


After replacing the above items, did you perform the replacement procedures correctly?


Belém do Pará?


Thanks for this, I have replaced the developer again and properly made the counters and developing replacing procedure, they have been running since 2 days, they did not call back so far, hopefully it is solved. Check also all seals and cleanin blades, all look fine.

[blackcat4866]

I seem to recall replacing a developing unit upper cover when the upper seal started curling back at the front and rear edges. It was around 8M prints. =^..^=

[qaraman]

I seem to recall replacing a developing unit upper cover when the upper seal started curling back at the front and rear edges. It was around 8M prints. =^..^=Yes, this would have been possible, however I changed the entire developing unit, this machine is now around 35M A4.

Thanks for the follow up, they still haven't called. :-)

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