Ricoh G188 Service Manual page 344

Service Call Conditions
No. Type
1.
2.
3.
4.
No. Type
Finisher folder plate motor error
The folder plate moves but is not detected at the home position within
the specified time. The 1st detection failure issues a jam error, and the
2nd failure issues this SC code.
761 B
1.
2.
3.
4.
No. Type
Punch movement motor error
The punch unit moves but is not detected at the home position within
the specified time. The 1st detection failure issues a jam error, and the
2nd failure issues this SC code.
763 B
1.
G188/G189
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Check the connections and cables for the punch motor and HP
sensor.
Check for blockages in the punch motor mechanism.
Replace the punch HP sensor and/or punch motor
Replace the finisher main board.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Folder plate HP sensor disconnected, defective
Folder plate motor disconnected, defective
Folder plate motor overloaded due to obstruction.
Check the connections and cables for the folder plate motor and
HP sensor.
Check for blockages in the folder plate motor mechanism.
Replace the folder plate HP sensor and/or folder plate motor
Replace the finisher main board.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Motor harness disconnected, loose, defective
Defective motor
Check the connections to the punch movement motor.
3-48 SM Appendix