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ERROR CODE AND TROUBLESHOOTING
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MJ-1106/1108
[CB31] Movable tray paper top detection error
MJ-1033
[CB40] Front alignment motor abnormality
* You receive a [CB40] error when the [ED13] error occurs three times in succession.
Check item Measures
Movable tray paper-full sensor Fix any mechanical problem occurring when the actuator is moved.
Check if there is a disconnection of the connector, incorrect
installation or breakage of the movable tray paper-full sensor (S16).
If there is, reinstall the sensor correctly or replace it.
Check if the connector (CN12) on the finisher controller PC board is
disconnected from the movable tray paper-full sensor (S16) and the
harnesses are open circuited. Correct if so.
Parts to be replaced Remark
Movable tray paper-full sensor
Finisher control PC board
Error Timing of detection
Movable tray shift motor
Stack top holding/detecting sensor
Paper holding home position sensor
The stack top holding/detecting sensor (S11) and the paper holding
home position sensor (S12) do not detect the position of the top of the
stack of paper in the specified time when the paper holding lever is
moved to the paper detection position.
Probable cause Checking and measures
Exiting paper holding solenoid (SOL1)
abnormality
Check if the electrical continuity of the coil is normal. If electricity is not
conducted, replace the solenoid.
Paper holding home position
sensor (S12) abnormality
Measure the voltage on TP13 on the finisher control PC board (FIN).
Then check that the measured voltage is 1V or lower when not
shielded and within the range of 3.3V
5% when shielded. If the voltage
does not fall within the range mentioned, replace the sensor.
Stack top holding/detecting sensor
(S11) abnormality
Measure the voltage on TP71 on the finisher control PC board (FIN).
Then check that the measured voltage is 1V or lower when not
shielded and within the range of 3.3V
5% when shielded. If the voltage
does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is
normal. If electricity is not conducted, replace the connector. (Finisher
control PC board (FIN): CN3, CN4)
Finisher control PC board (FIN)
abnormality
If the error still occurs after replacing the solenoid, sensors and
connector, exchange the finisher control PC board (FIN).
Classification Contents
Finisher related service call Front alignment motor abnormality: The front alignment motor is
not rotating or the front alignment plate is not moving normally.
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