June 2005 © TOSHIBA TEC e-STUDIO281c/351c/451c TROUBLESHOOTING
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[CBF0] Paper positioning plate motor abnormality
[CC00] Sensor connector abnormality
[CC10] Microswitch abnormality
MJ-1024
Is the paper positioning plate home position sensor (PI7) working normally?
ÈNO ÆReplace the sensor.
YES
Is the paper positioning plate drive mechanism normal?
ÈNO ÆFix the mechanism.
YES
1) Replacing the paper positioning plate motor (M4).
2) Replace the saddle stitcher controller PC board.
MJ-1024
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?
ÈNO ÆConnect them to the board.
YES
Is the wiring between the sensors and the saddle stitcher correct?
ÈNO ÆCorrect the wiring.
Is 5V DC being supplied from the connector pins J9-7, -10 and -13 on the saddle stitcher con-
troller PC board?
ÈNO ÆReplace 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?
ÈNO ÆReplace the saddle stitcher controller PC board.
YES
End.
MJ-1024
Are the front cover switch (MS31), inlet door switch (SW1) and delivery door switch (SW3) nor-
mal?
ÈNO ÆReplace the switches.
YES
Measure the voltage between J704-1 (+) and J704-2 (-) on the finisher controller PC board. Is
it 24V?
ÈNO ÆReplace the finisher controller PC board.
Is the wiring between J704 on the finisher controller PC board and J1 on the saddle stitcher
controller PC board correct?
ÈNO ÆCorrect the wiring.
YES
Replace the saddle stitcher controller PC board.