Ricoh D025 - Page 464

SC Tables
D023/D025 3-12 SM Appendix
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
220 D Laser synchronizing detection error: start position [K]: LD0
222 D Laser synchronizing detection error: start position [Y]: LD0
226 D Laser synchronizing detection error: start position [C]: LD0
The laser synchronizing detection signal for the start position of the
LDB [K], [Y], [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 BICU
- -
1. Check the connectors.
2. Replace the laser-synchronizing detector.
3. Replace the LDB.
4. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
FGATE ON error: K
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)
 Poor connection between controller and BICU.
 Defective BICU
230 D
1. Check the connection between the controller board and the BICU.
2. Replace the BICU.
3. Replace the controller board.