lumps of toner black, on copies / prints on iR-ADV C 5051

[Ingranaggio_rotto]

Another problem:
lumps of black toner on the iR ADV C5051 ...
I replaced both the black drum and the Developing the unit, but after a while (5,000 copies / prints approximately) the problem has reappeared ...
Have you ever?
Thank !

[teckat]

Another problem:
lumps of black toner on the iR ADV C5051 ...
I replaced both the black drum and the Developing the unit, but after a while (5,000 copies / prints approximately) the problem has reappeared ...
Have you ever?
Thank !

post a copy of issue

where are buying toner ?? OEM ??

[Ingranaggio_rotto]

The toner is original, Canon...
Then I will post a copy.

[northernlife]

Fuser causes this issue. There's a sep blade in the fuser that causes this issue. Make sure you update the firmware if you still have a v1 5051 as the firmware fixes a lot of the fuser related issues I've been seeing (groaning, 0113's) Only thing that sucks is the film alone is near 600 bucks.

[Ingranaggio_rotto]

I'll check....
But I ask me: why only with toner black and not with toner color ?

[northernlife]

I wish I could answer that. Everytime I take them apart it's just black gunk on the sep guide. The drums for BK are different than the colours so perhaps that has to do with it. But I can say that I have successfully gotten rid of those streaks with the fuser/firmware update (I love CDS)

I'll check....
But I ask me: why only with toner black and not with toner color ?

[Ingranaggio_rotto]

I found the cause!
Too black toner in the developing unit ! Removing the toner bottle and discharging the group of black (PG Type 5 at 255 to 100 sheets of A3 size), everything is back to normal!
Thank for the helps !

[Simons]

Too much Black toner in the dev unit? So are you saying this was a overtoning problem. Very dense black with some shaking off in the fuser? Really? As in ifailir6870fuus?

Where is our example attachment? I would like to see it!

[Ingranaggio_rotto]

Hi ....
This printer has something like 890,000.0 copies / prints.
And in total, just 165.000 color ...
He works extensively with the b / w ....
And for the last time he worked exclusively with the black group .....
Causing a overtoner black ...
Unfortunately I no longer have an example to show!

[teckat]

overtonedhanddrawing2cn3.jpg

heavy volume will usually not cause overtone on these new type iR's

just tell your customer to do the prescribed auto gradation procedures daily