Ricoh B230 Service Manual page 260

No.
220
222
224
226
B230/B237
Details (Symptom, Possible Cause, Troubleshooting
Type
D Laser synchronizing detection error: start position [K]
D Laser synchronizing detection error: start position [Y]
D Laser synchronizing detection error: start position [M]
D Laser synchronizing detection error: start position [C]
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 BICU
1. Check the connectors.
2. Replace the laser-synchronizing detector.
3. Replace the LDB.
4. Replace the BICU.
4-20
Procedures)
SM