Toshiba e-STUDIO2330C Service Manual page 1047

[CBE0] Paper folding motor abnormality
MJ-1030
Are the paper folding motor clock sensor (PI4) and paper folding home position sensor (PI21)
working normally?
 NO 
Replace the sensors.
YES
Is the paper folding roller drive mechanism normal?
 NO 
Fix the mechanism.
YES
1. Replacing the paper folding motor (M2).
2. Replace the saddle stitcher controller PC board.
[CBF0] Paper positioning plate motor abnormality
MJ-1030
Is the paper positioning plate home position sensor (PI7) working normally?
 NO 
Replace the sensor.
YES
Is the paper positioning plate drive mechanism normal?
 NO 
Fix the mechanism.
YES
1. Replacing the paper positioning plate motor (M4).
2. Replace the saddle stitcher controller PC board.
[CC00] Sensor connector abnormality
MJ-1030
Are the guide home position sensor (PI13), paper pushing plate home position sensor (PI14)
and paper pushing plate top position sensor (PI15) connected to the saddle stitcher controller
PC board?
 NO 
Connect them to the board.
YES
Is the wiring between the sensors and the saddle stitcher correct?
 NO 
Correct the wiring.
Is 5V DC being supplied from the connector pins J9-7, -10 and -13 on the saddle stitcher
controller PC board?
 NO 
Replace the saddle stitcher controller PC board.
YES
Are the connector pins J9-8, -11 and -14 on the saddle stitcher controller PC board correctly
connected to the ground?
 NO 
Replace the saddle stitcher controller PC board.
YES
End.
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