Gestetner B070 Service Manual page 973

SERVICE CALL CONDITIONS
SC591: Toner Supply Pump Motor Error
Definition [B]
The toner supply pump motor lock signal did not change within 1 s while the motor
is operating.
Possible Causes
• Motor lock due to overload
• BCU defective
SC592: Toner Bank Motor Error
Definition [B]
An abnormal signal was received from the toner bank motor.
Possible Causes
• Toner bank motor defective
• Bank motor connector loose
• Too much load on the drive mechanism
⇒
SC593: Toner Suction Motor Replace
Definition [B]
The operation time of the motor is over 600 hours.
Possible Cause
• Service life of the toner suction motor is finished.
Note: A near-end message is displayed in the LCD when the operation time
exceeds 570 hours.
SC601: Communication Error Between BCU and MCU
Definition [B]
One or more of the following occurred:
• The BCU cannot communicate with the MCU within 0.8 s after power on.
• A BREAK signal was detected after connection between the BCU and MCU.
• After a communication error, three tries to communicate with the MCU failed.
Possible Causes
• Poor connection between BCU and MCU
• BCU defective
• MCU defective
B070/B071
CÓPIA NÃO CONTROLADA
4-28
CÓPIA NÃO CONTROLADA
Rev. 06/2003
SM