Ricoh G104 Service Manual page 340

Service Call Conditions
SC
Symptom
[Level]
Laser Synchronizing Detection Error: LDB of the leading edge [K]
The laser synchronizing
detection signal for LDB [K]
220
of the leading edge is not
[D]
output for two seconds after
LDB unit turns on while the
polygon motor is rotating
normally.
Leading edge laser detection error: [Y]
The laser synchronizing
detection signal for LDB [Y]
222
of the leading edge is not
[D]
output for two seconds after
LDB unit turns on while the
polygon motor is rotating
normally.
Leading edge laser detection error: [M]
The laser synchronizing
detection signal for LDB [M]
224
of the leading edge is not
[D]
output for two seconds after
LDB unit turns on while the
polygon motor is rotating
normally.
Leading edge laser detection error: [C]
The laser synchronizing
226
detection signal for LDB [C]
[D]
of the leading edge is not
output for two seconds after
G160/G161
CÓPIA NÃO CONTROLADA
Possible Cause/Required Action
Disconnected cable from the laser
synchronizing detection unit or defective
connection
Defective laser synchronizing detector
Defective LDB
Defective EGB
1. Check the connectors.
2. Replace the laser-synchronizing
detector.
3. Replace the LDB.
4. Replace the EGB.
Same as SC 221
Same as SC 221
Same as SC 221
4-6
CÓPIA NÃO CONTROLADA
SM