SC No. Type Error Name/Error Condition/Major Cause/Solution
SC721-53 B Rear End Fence Displacement Motor Error
• During movement to home, the home position could not be detected
within a predetermined pulse (1st time is jam notification, 2nd time is
SC notification).
• During movement from home, the home position was detected for
longer than a predetermined pulse (1st time is jam notification, 2nd
time is SC notification).
SC721-58 B Bundle Transport 1 Release Motor Error
SC721-59 B Bundle Transport 2 Release Motor Error
• During movement to home, the home position could not be detected
within a predetermined pulse (1st time is jam notification, 2nd time is
SC notification).
• During movement from home, the home position was detected for
longer than a predetermined pulse (1st time is jam notification, 2nd
time is SC notification).
SC721-80 B Folding Transport Motor Error
• Motor driver detects an error (short-circuit or overheating) (1st time
is SC)
SC721-70 B Tray 1 Lift Motor Error
• Motor driver detects an error (short-circuit or overheating) (1st time
is SC).
• During descent, the paper surface sensor still detects paper even
after a predetermined time 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 elapses (1st time is jam
notification, 2nd time is SC notification).
6. Troubleshooting
900
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