Ricoh AP-P2 G188 Field Service Manual page 293

No. Type
The laser synchronizing detection signal for the start position of the LDB [K], [Y], [M],
[C] is not output for two seconds after LDB unit turns on while the polygon motor is
rotating normally.
• Disconnected cable from the laser synchronizing detection unit or defective
connection
• Defective laser synchronizing detector
- -
• Defective LDB
• Defective BCU
1. Check the connectors.
2. Replace the laser-synchronizing detector.
3. Replace the LDB.
4. Replace the BCU.
No. Type
FGATE ON error: Bk
The PFGATE ON signal does not assert within 5 seconds after processing the image
in normal job or MUSIC for start position [K].
• Defective ASIC (Lupus)
230 D
• Poor connection between controller and BCU.
• Defective BCU
1. Check the connection between the controller board and the BCU.
2. Replace the BCU.
3. Replace the controller board.
No. Type
FGATE OFF error: Bk
• The PFGATE ON signal still asserts within 5 seconds after processing the image
in normal job or MUSIC for end position [K].
231 D
• The PFGATE ON signal still asserts when the next job starts.
See SC 230 for troubleshooting details.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Service Call Conditions
3
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