Ricoh MPC 2800 AT-C2 Field Service Manual page 450

3. Appendix: Service Call Conditions
No. Type
3
798
B
-5
No. Type
798
B
-6
94
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Positioning roller arm motor error
The positioning roller HP sensor does not turn on or off for a certain time at power-
on.
The positioning roller HP sensor does not turn on or off for a certain time when the
positioning roller returns to its home position from the lower position.
The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
• Disconnected or defective harness
• Overload on the positioning roller arm motor
• Defective positioning roller arm motor
• Defective positioning roller HP sensor
1. Check or replace the harness.
2. Check for blockages in the positioning roller arm mechanism.
3. Replace the positioning roller arm motor.
4. Replace the positioning roller HP sensor.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Finisher corner stapler motor error
The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
For 500-sheet finisher
• The stapler HP sensor does not detect "ON"/"OFF" signal even the stapler
moves from the "OFF"/"ON" position for 0.6 seconds.
• The stapler HP sensor does not detect "ON" when a stapling job is commanded
or the stapler moves.
• Staple jam
• Motor overload
• Defective stapler motor
1. Check the connections and cables for the components mentioned above.
2. Replace the HP sensor and/or stapler motor
3. Replace the finisher main board.