Toshiba e-STUDIO520 Service Handbook page 445

NO
YES
END
[Procedure 3]
Is the paper pushing plate motor clock sensor (PI1S) working normally?
NO
YES
Is the paper pushing plate motor (M8S) operating at the fixed timing?
YES
NO
Is there any problem with the pushing plate drive mechanism?
YES
NO
Is the problem solved by replacing the paper pushing plate motor (M8S)?
NO
YES
END
[CBA0] Stitch motor (front) abnormality
[CBB0] Stitch motor (rear) abnormality
Are the front and rear stitchers and their stands installed properly?
NO
YES
Are the stitcher home position switches (MS7S/MS5S) on the front and rear stitchers work-
ing normally?
NO
YES
Are the front and rear stitchers operating at the fixed timing?
NO
YES
Check the wiring between the stitcher and saddle stitcher controller PC board. If there is no
problem, replace the controller PC board.
© 2005 - 2007 TOSHIBA TEC CORPORATION All rights reserved
Replace the saddle stitcher controller PC board.
Replace the sensor.
Replace the saddle stitcher controller PC board.
Fix the mechanism.
Replace the saddle stitcher controller PC board.
Install them properly.
Replace the front or rear stitcher.
Replace the front or rear stitcher.
5 - 83
e-STUDIO520/523/600/603/720/723/850/853
TROUBLESHOOTING
5