af 2018

[Gab]

I did some simple works at the back side of the machine a year ago , ever since when making two sided copies
the back side is light. By that time i didn'r need this machine but now i do.
I have checked everything , compared it with other machines everything looks ok.
I sawaped drum unit and charge roller from other machine , nothing.
I quess it is some grounding but all seems ok. Any idea?

[Polarbear]

Re: af 2018

Hi.

What does "I did some simple works at the back side of the machine a year ago" mean?

Were you working on the high voltage board? Are are the connectors in the correct places? All the cables have letters on them "C" for charge, "B" for Bias, etc. They should match the marking on the board.

Also check the transfer current for the back side on the machine sp mode to see if it is correct.