Samsung ML-3471ND - Series model solution(ML-3470 D and ML-3471 ND); Document Jam

Reference Information
Samsung Electronics
Service Manual
7-23
7.6.18 Document Jam
Yes, still there is Error Message
Yes
No
No, just for copying job with ADF
Yes
No
No Yes
Check if rolling
sound can be
heard
When start the
Because It is accaused by the defects of ADF motor or ADF
board,
Replace ADF Engine Assy
Replace Main PCBA Controller Board
Check if there is
[Document Jam]
message regardless of
removing the
document from ADF
t
Replace ADF Rubber Pad
Check if ADF is
pulling Document
Fix the
problem
Because It is accaused by the defects of ADF Sensor ,
Replace ADF Engine Assy
Error Messasge is
disappeared?