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15 July 1996
1.8 PROCESS SENSOR
SC351 - Abnormal Vsg Detection (Vsg > 4.2V)
Definition: [level: C]
The detected Vsg value is over 4.2 V.
Possible causes:
•
ID sensor defective
•
Main control board defective
SC352 - Incomplete TD sensor initial setting
Definition: [level: C]
The output voltage of the TD sensor is higher than 2.6 V or lower than
2.4 V during the developer initial setting mode.
V
to get 2.5 V for the TD sensor output is higher than 10 V or lower
OUT
than 2 V.
Possible causes:
•
Connector [A] not set correctly
•
Toner density sensor defective
•
Abnormal toner concentration
SC353 - Abnormal Vsp Detection (Vsp ≥ 2.5 V: lighter pattern)
Definition: [level: C]
Vsp is 2.5 V or higher.
Possible causes:
•
ID sensor defective
•
OPC drum
•
High voltage control board defective
•
Poor contact of the development bias terminal
SERVICE CALL CONDITIONS
6-9
[A]
A176T502.wmf
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