Hi there!
Had a very nice problem. Allways J025 when duplexing, paper allways and exactly at this position20130909_150050.jpg. My fellow changed the sensors - NG. Then changed motor #B2234572 - NG. Changed the IOB-pwb - NG. After 2 days i meet with him at the customer and after some output-checks there was only a little whining sound from the motor #B2231188!!! Opened the motor ´cause you couldn´t turn it in any way. After oiling carefully the 2 balllbearings it turned again. Reinstalled the motor, and now its working fine. It seems that the customer had made no duplex-copies over the years, cause the counter shows 160K copies/prints with 140 duplex copies/prints!!
Hope this will help.
Greetings...
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