Konica C1100 error C-3110

[sendpiks]

Hello. I have printer Konica Minolta Bizhub Press C1100.
Couple of days ago one of the toner supply path was broken and about 100g of magenta toner was flooded inside the body mostly to ADU unit and fuser. I stopped printer, vacuumed and cleaned everything but when I try to start machine back it give me an error C-3110 (Fusing belt steering abnormality). I cleaned steering motor sensors and all around - nothing changed.
I replaced fusing unit to another one (my backup unit in working condition), on this unit I have error C-3105 (Fusing belt steering edge abnormality).
I replaced all sensors that found with another one and checked it with i/o, all working but error still here.
Today I swapped blocks of 3 edge steering sensors on both units and now both units give me C-3110 error.
I checked and cleaned all contact pads of fuser (1 in front and two on back), I visually checked Conveyance drive board and wiring so everything looks reasonable good.
Here all my ideas ended.
Printer is not on contract so I will be very appreciated for ANY ideas what possible happens and what possible I can do?

[Ziggy]

two things if the belt is to far to one side when you first turn on it will give this code and if there are small groves on the steel pin that rides on the edge of belt it will also cause this code

[sendpiks]

Thank you for your reply and thank you for idea about grooves on pin, I never thought in this way.
In my case it not help just because my printer fall into BSOD "call technician" on the startup without rotating belt. I can see how it check ITU, check 2nd transfer unit, up-and-down it, start to check fuser and fall into BSOD.
What can be issues? Electrical problems?

[Ziggy]

what is bsod?

[sendpiks]

what is bsod?

Black Screen Of Death. :-)
When machine stopped and write "call technician" on a black screen

[Ziggy]

What error code?

[sendpiks]

problem solved.
Issue was in damaged wire between Fuser and Conveyance drive board.