Sharp AR-810 User Manual download pdf (Page 87)

5 - 87 AR-651/810 TROUBLE SHOOTING

[CB8] Abnormal backup RAM data

Is the problem solved by turning the power of the copier OFF and ON?

YES

END

Replace the finisher controller PC board.

[CB9] Abnormal saddle stitcher paper pushing plate motor

[Procedure 1]

Is the paper pushing plate home position sensor (PI14S) working normally?

Replace the sensor.

YES

Is the paper pushing plate motor (M8S) operating at the fixed timing?

YES

Replace the saddle stitcher controller PC board.

Is the paper pushing plate drive mechanism normal?

Fix the mechanism.

YES

Is the problem solved by replacing the paper pushing plate motor (M8S)?

Replace the saddle stitcher controller PC board.

YES

END

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Sharp AR-810 User Manual Page 87