Konica Minolta bizhub C250 Service Manual page 748

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Field Service Ver. 1.0 Jul. 2005

LCT shifting failure

LCT Shift Motor malfunction

• Open and close the Front Door, or turn OFF the Main Power Switch. Then, wait for 10

sec. or more and turn ON the Main Power Switch to reset the malfunction display.

• The Shift Tray Stop Sensor (PC11-LCT) is not blocked

even after the set period of time has elapsed after the

shift operation began (shift to the right).

• The Shift Tray Stop Sensor (PC11-LCT) is not blocked

even after the set pulse is detected by the Shift Motor

Pulse Sensor (PC8-LCT) after the shift operation

began (shift to the right).

• The Shifter Home Position Sensor (PC12-LCT) is not

unblocked even after the set pulse is detected by the

Shift Motor Pulse Sensor (PC8-LCT) after the shift

operation began (shift to the right).

• The Shifter Home Position Sensor (PC12-LCT) is not

blocked even after the set period of time has elapsed

after the return operation began (shift to the left).

• The Shifter Home Position Sensor (PC12-LCT) is not

blocked even after the set pulse is detected by the Shift

Motor Pulse Sensor (PC8-LCT) after the return opera-

tion began (shift to the left).

• The Shift Tray Stop Sensor (PC11-LCT) is not

unblocked even after the set pulse is detected by the

Shift Motor Pulse Sensor (PC8-LCT) after the return

operation began (shift to the left).

• The Shift Motor Pulse Sensor (PC8-LCT) cannot detect

both edges of H/L even after the set period of time has

elapsed while the Shift Tray Motor (M4-LCT) is turning

backward/forward (raise/lower).

8. Trouble code

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