Hello!
I have Konica Minolta Bizhub 350. I received it from bankrupt company. It was working very good but on every print grey line appeared. I wanted to see if there is something on drum, so I opened right doors (over manual paper feed), catched two blue handles and I've unplugged whole drum unit. I saw nothing wrong to the drum so, I've put it again in its place. After 3 copies, copier stopped working, showing C2557 error.
Now, I know it means that something is wrong with ATDC Sensor. I saw in service manual that I need to "Run F8".
The question is: to run F8, I need to enter tech. rep. mode, but default password doesn't work. Is there a list of another often used ones? Can I reset this password? Or is there another way? I would like to know what does ATDC Sensor stand for and maybe I need to change something in the drum and not in software.
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