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TROUBLESHOOTING
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[EA70] Stack delivery jam
MJ-1022
Is there any paper remaining on the transport path in the finisher or equipment?
YES Remove the paper.
NO
Is the connector J9 on the finisher controller PC board disconnected?
Is the harness connecting the finisher controller PC board and stack delivery lever home
position sensor (S8) open circuited?
YES Connect the connector securely. Replace the harness.
NO
Is the stack delivery lever home position sensor working properly?
l
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NO 1) Connect the connector of the stack delivery lever home position sen-
sor securely.
2) Replace the stack delivery lever home position sensor.
YES
Replace the finisher controller PC board.
MJ-1025
Is there any paper remaining on the stapling tray?
YES Remove the paper.
NO
Are the paper on the stack tray and the latches of the stack delivery belt contacting each
other?
YES Remove the paper on the stack tray.
NO
Is any of the connectors CN5 (delivery belt home position sensor), CN13 (delivery motor) on
the finisher controller PC board disconnected?
Is the harness connecting the finisher controller PC board and delivery belt home position
sensor open-circuited?
Is the harness connecting the finisher controller PC board and delivery motor open-cir-
cuited?
YES Connect the connector securely. Replace the harness.
NO
Is the delivery belt home position sensor working properly?
NO Replace the sensor.
YES
Is the delivery motor working properly?
NO Replace the motor.
YES
Rotate the delivery motor by hand. Is there any mechanical problem with the rotation of the
stack delivery belt?
Are the latches of the stack delivery belt damaged?
YES Fix the mechanism.
NO
Replace the finisher controller PC board.
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