Konica Minolta c6500 2421 developer issue

[JAkelar]

So i am getting an alternating 2411 and 2421,
it seems as though the developer is spilling onto the sensors and covering them which is causing the 2411.
i then follow procedures to resolve the 2411 and after a little bit it starts throwing the 2421

when i do io check on 54-00 it gives me a 3 and then a 2 and then a 1.

the initial toner density sensor mode and etc all end up crashing to the 2411. and i have to remove the unit and clean the sensors..

It seems like theres supposed to be a bit of a vaccuum on the top and perhaps that vaccuum is faulty?

[Synthohol]

did you clean or change the toner filter inside the right door?

[JAkelar]

did you clean or change the toner filter inside the right door?

Uhh. The little like 6 filter deep box under the panel on the right? Or is there a secret one I don't know about

[JAkelar]

did you clean or change the toner filter inside the right door?

Konica Minolta Filter Exchanging Assembly A03UR70111

this one? ive cleaned it .

when i look at the developer unit the developer on the roller part is thick and then its just all over the top over the sensors.. .

is that thickness normal? is there a good way to check like.. cleaning pressure?

[Synthohol]

yeah, thats supposed to draw misting toner, when it starts to clog, the whole process unit gets nasty.
is the thin silver shutter closed on the front of the DV unit?

[JAkelar]

yeah, thats supposed to draw misting toner, when it starts to clog, the whole process unit gets nasty.
is the thin silver shutter closed on the front of the DV unit?

I'm not sure on the shutter, I'll be in there to work on it tomorrow,
I'll get pictures of things, I imagine that can help,

[tulintron]

I'm not sure on the shutter, I'll be in there to work on it tomorrow,
I'll get pictures of things, I imagine that can help,

send photos for better understanding

[JAkelar]

send photos for better understanding

Imgur: The magic of the Internet

here are pictures

I previously moved the yellow developer unit into the magenta space and the issue followed the yellow developer,
so we replaced the yellow developer unit , And now we get this.

any advice is greatly appreciated.

[JAkelar]

Its now throwing a 2414 intermittently when i attempt to do toner refresh mode

[JAkelar]

oh and IO 53-00 is at like 001 when stuff ive seen says it needs to be 140