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Ricoh Aficio SP C440DN

Ricoh Aficio SP C440DN
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No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
- - The laser synchronizing detection signal for the start position of the LDB [K], [Y], is
not output for two seconds after laser 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 unit.
3. Replace the controller.
4. Replace the BCU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
230
-001
D 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
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 Details (Symptom, Possible Cause, Troubleshooting Procedures)
230
-002
D FGATE ON error: Y
The PFGATE ON signal does not assert within 5 seconds after processing the
image in normal job or MUSIC (line position adjustment) for start position [Y].
See SC230-001 for troubleshooting details.
6. Troubleshooting
566

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