Service Call 700-792
D146/D147/D148/D149/D150 5-112 SM
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC720-70 B Folding Transport Motor Error (2K/3K sheet finisher)
§ Motor controller detects an error (overload) (1st time is jam
notification, 2nd time is SC notification).
§ During descent, the paper surface sensor still detects paper
even after a predetermined time (t0sec) elapses (1st time is
jam notification, 2nd time is SC notification).
§ During ascent, the paper surface sensor could not detect
the paper surface even after a predetermined time (t1sec)
elapses (1st time is jam notification, 2nd time is SC
notification).
§ Motor defective
§ Connector disconnected
§ Overload
§ Home position sensor defective
§ Check the motor
§ Check the home position sensor connection
§ Replace the motor
§ Replace the home position sensor
§ Replace the controller
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC721 1K Sheet finisher Error
SC721-03 B Protection Device Intercept Error 1 (1K sheet finisher)
Fuse blowout is detected
SC721-10 B Transport Motor 1 Error (1K sheet finisher)
Motor driver detects an error state (DC motor control error) (1st
time is jam notification, 2nd time is SC notification).
SC721-11 B Transport Motor 2 Error (1K sheet finisher)
Motor driver detects an error state (DC motor control error) (1st
time is jam notification, 2nd time is SC notification).
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