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ERROR CODE AND TROUBLESHOOTING
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[ 4 ] Paper jam in saddle stitcher section
[EA80] Stapling jam
MJ-1024
1. Check if there is any paper in the finisher, saddle stitcher, or on the transport path of the
equipment, or on the stapling tray. Remove it if there is.
2. Remove the staple cartridge from the finisher and remove staples stuck in the stapling unit.
3. Check if the connector J8 on the saddle stitcher controller PC board is disconnected from the
stitcher home position switches (rear: SW5, front: SW7) or the harnesses are open circuited.
Correct if any.
4. Check if the stitcher home position switches are working properly.
5. Replace the stitcher home position switch.
6. Replace the finisher controller PC board.
[EA90] Door open jam
MJ-1024
1. Check if there is any paper in the finisher, saddle stitcher or on the transport path of the
equipment. Remove it if there is.
2. Check if the saddle stitcher door is closed.
3. Check if the connectors J10 and J11 on the saddle stitcher controller PC board are disconnected
from any of the cover opening switches (the delivery cover sensor [P13] and the inlet cover
sensor [P19]) or the harnesses are open circuited. Correct if any.
4. Check if the cover opening switches noted above are working properly.
5. Replace the sensor.
6. Replace the saddle stitcher controller PC board.
[EAA0] Power-ON jam
MJ-1024
1. Check if there is any paper on the transport path of the saddle stitcher or the finisher. Remove it
if there is.
2. Is any of the connectors J9, J10 and J13 on the saddle stitcher controller PC board
disconnected?
3. Check if the connectors on the saddle stitcher controller PC board are disconnected from the No.
1 paper sensor (PI18), No. 2 paper sensor (PI19), No. 3 paper sensor (PI20), vertical path paper
sensor (PI17) and delivery sensor (PI11), or the harnesses are open circuited. Correct if any.
4. Is each of the sensors (No.1 paper sensor, No.2 paper sensor, No.3 paper sensor, the vertical
path paper sensor, and the delivery sensor) working properly? (Check the movement of the
actuator.)
5. Replace the sensor.
6. Replace the saddle stitcher controller PC board.
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