Gestetner A294 Service Manual page 463

Rev.9/2001
SC303: Charge Grid Output Error 1
Definition [B]
A feedback voltage for the grid of more than 4.5 V was detected from the
charge/bias/grid power pack 9 times consecutively.
Possible Causes
• Charge/bias/grid power pack defective
• Poor charge corona unit connection
SC304: Charge Grid Output Error 2
Definition [B]
A feedback voltage for the grid of less than 1.0 V was detected from the
charge/bias/grid power pack 9 times consecutively.
Possible Causes
• Charge/bias/grid power pack defective
• Poor charge corona unit connection
SC305: Charge Corona Wire Cleaner Error 1
Definition [B]
The charge corona wire cleaner does not return to its home position.
Possible Causes
• Charge corona wire cleaner motor defective
• BCU defective
SC306: Charge Corona Wire Cleaner Error 2
Definition [D]
The charge corona wire cleaner motor connector is not connected.
Possible Causes
• Poor connection or disconnected charge corona wire cleaner motor
connector
SC310: Drum Potential Sensor Error 1
Definition [D]
When calibrating the drum potential sensor during process control initial
setting, the drum potential sensor output voltage is out of specification.
Possible Causes
• Drum potential sensor defective
• Poor connection between the drum potential sensor and the BCU
• BCU defective
• Charge/bias/grid power pack defective
SM
CÓPIA NÃO CONTROLADA
7-5
CÓPIA NÃO CONTROLADA
SERVICE CALL CONDITIONS
A294/A295