Ricoh G133 Service Manual page 229

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Disconnected or defective harness to polygon motor driver board
Defective polygon motor driver board
Defective polygon motor
See SC 202 for troubleshooting details.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Polygon motor error 3: XSCRDY signal error
The SCRDY_N signal goes HIGH (inactive) while the laser diode is
firing.
204 D
Disconnected or defective harness to polygon motor driver board
Defective polygon motor
Defective polygon motor driver board
See SC 202 for troubleshooting details.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
210 C Laser synchronizing detection error: end position [K]
211 C Laser synchronizing detection error: end position [Y]
212 C Laser synchronizing detection error: end position [M]
213 C Laser synchronizing detection error: end position [C]
The laser synchronizing detection signal for the end position of LDB [K],
- -
[Y], [M], [C] is not detected for one second after the LDB unit turned on
when detecting the main scan magnification.
Disconnected or defective harness to synchronizing detector for
end position
Defective synchronizing detector board
Defective LD board or driver
Defective EGB
SM 4-13
SC Table
G133