CANON CLC1120
Manual de Servicio

CHAPTER 13 TROUBLESHOOTING

Code

E071

· · · · · · · ·

Cause The side A sensor (PS2) is faulty. The side B sensor (PS3) is faulty. The C sensor (PS4) is faulty. The signal plate is faulty. The drum motor drive system is subjected to an overload. The transfer drum locking mechanism is faulty. The DC driver PCB is faulty. The CPU PCB is faulty.

1101

1102

· · · · ·

Side A sensor (PS2) is faulty. Side B sensor (PS3) is faulty. The C sensor (PS4) is faulty. The signal plate is faulty. The drum motor drive system is subjected to an overload. · The transfer drum is not locked properly. · The DC driver PCB is faulty. · The CPU PCB is faulty.

1103

1104

1105

1106

1107

Timing of detection The falling edge signal of the signal plate to be detected by the side B sensor is generated 0.3 sec earlier after the falling edge signal of the signal plate D detected by the C sensor has been generated. The rising edge signal of the signal plate to be detected by the side B sensor is generated 0.3 sec earlier after the rising edge signal of the signal plate C detected by the C sensor has been generated. The rising edge signal of the signal plate C to be detected by the C sensor is generated 0.3 sec earlier after the falling edge signal of the signal plate detected by the side B sensor has been generated. The falling edge signal of the signal plate C to be detected by the C sensor is generated 0.3 sec earlier after the rising edge signal of the signal plate detected by the side B sensor has been generated. The rising edge of the signal plate to be detected by the side A sensor is generated 0.3 sec earlier after the falling edge signal of the signal plate C detected by the C sensor has been generated. The falling edge signal of the signal plate to be detected by the side A sensor is generated 0.3 sec earlier after the rising edge signal of the signal plate D detected by the C sensor has been generated. The rising edge signal of the signal plate D to be detected by the C sensor is generated 0.3 sec earlier after the rising edge of the signal l plate to be detected by the side A sensor has been generated.

COPYRIGHT © 1999 CANON INC.

CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

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