Ricoh SP 8400DN Field Service Manual page 1312

6.Troubleshooting
SC No. Type
SC722- B Paper Guide Drive Motor Error
47
•
•
SC722- B Tray Lift Motor Error
70
•
•
•
SC722- B Shift Motor Error
71
SC722- B Paper Guide Drive Motor
81
•
•
•
•
•
•
•
•
•
•
Check if the SC occurs by opening/closing covers, and input/output check. If the SC occurs
again, do the following steps. Check if the SC reoccurs by cycling the power after each step.
•
1.
2.
574
Error Name/Error Condition/Major Cause/Solution
predetermined time elapsed (1st time is jam notification, 2nd time is SC notification).
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).
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 (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 (t0sec) elapses (1st time is jam notification, 2nd time is SC
notification).
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).
Overcurrent (-03 only)
Staple jam (-44 only)
Encoder error (-11, -11, -25, -44)
Motor defective
Connecter disconnected, or loose
Motor overload
HP sensor defective
Paper surface sensor defective (-70 only)
The target parts are the motor and related HP sensor that SC occurred.
Check if the connector of the target part is connected securely. Reconnect the connector
if it is disconnected, or loose.
Check the harness for the target part. Replace the harness if it is disconnected, or
damaged.