Canon iR2200 Service Manual page 669

E051
0000 At start-up, home position is not detected when the horizontal registration
assembly is moved 100 mm in the direction of home position.
Main cause The horizontal home position sensor is faulty. The horizontal registration
motor is faulty. The DC controller PCB is faulty.
Action
1. Connector
Are the connectors of the horizontal registration home position sensor and
the horizontal registration motor connected?
a. DC controller PCB (J304) <-> relay connector <-> horizontal registra-
tion home position sensor
b. DC controller PCB (J304) <-> relay connector <-> horizontal registra-
tion motor
NO:
2. Sensor lever (damage and interference), Sensor
Is abnormal noise heard from the horizontal registration assembly in keep-
ing with the motor rotation?
YES: a. The horizontal registration assembly is out of place because of
3. Horizontal registration motor, DC controller PCB
Is the horizontal registration motor control signal generated by the DC con-
troller PCB?
J304-1/2: 24 V, J304-3/4/5/6: motor excitation signal
YES: The horizontal registration motor is faulty. Replace the motor.
NO:
COPYRIGHT © 2001 CANON INC.
Connect the connectors.
damage to the sensor lever. Replace the sensor lever.
b. The horizontal registration assembly malfunctions because of the
presence of foreign matter. Remove the foreign matter.
c. The sensor is faulty and cannot detect home position. Replace the
sensor.
Replace the DC controller PCB.
2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 6 SELF DIAGNOSIS
6-11 T