• Code: EA20
• Description: Paper transport stop jam: The paper does not pass through the inlet sensor. [MJ-1022/1025]
• Remedy: MJ-1022 Is there any paper remaining on the transport path in the finisher or equipment? YES Remove the paper. NO Is the connector J10 on the finisher controller PC board disconnected? Is the harness connecting the finisher controller PC board and inlet sensor (S2) open-circuited? YES Connect the connector securely. Replace the harness. NO Is the inlet sensor working properly? (Check the movement of the actuator.) NO 1. Connect the connector of the inlet sensor securely. 2. Attach the actuator securely if its shaft is out of place. 3. Replace the inlet sensor. YES Replace the finisher controller PC board.
  MJ-1023/1024 Is there any paper remaining on the transport path in the finisher or equipment? YES Remove the paper. NO Is any of the connectors (J707, J708 and J722B) on the finisher controller PC board disconnected? Is the harness between the finisher controller PC board and each sensor (the inlet sensor [PI33], transport path sensor [PI34], and processing tray sensor [PI38]) open-circuited? YES Connect the connectors securely. Replace the harnesses. NO Is each of the sensors (the inlet sensor, transport path sensor and processing tray sensor) working properly? (Check the movement of the actuator.) NO 1. Connect the connectors of the sensors securely. 2. Attach the actuators securely if their shafts are out of place. 3. Replace the sensors. YES Replace the finisher controller PC board.

• Code: EA30
• Description: Power-ON jam: Paper exists at the inlet sensor when power is turned ON. [MJ-1022/1025]
• Remedy: MJ-1022 Is there any paper remaining on the transport path in the finisher? YES Remove the paper. NO Is the connector J10 on the finisher controller PC board disconnected? Is the harness connecting the finisher controller PC board and inlet sensor (S2) open-circuited? YES Connect the connector securely. Replace the harness. NO Is the inlet sensor working properly? (Check the movement of the actuator.) NO 1. Connect the connector of the inlet sensor securely. 2. Attach the actuator securely if its shaft is out of place. 3. Replace the inlet sensor. YES Replace the finisher controller PC board.
  MJ-1023/1024 Is there any paper remaining on the transport path in the finisher? YES Remove the paper. NO Is any of the connectors J707, J708 and J722B on the finisher controller PC board disconnected? Is the harness between the finisher controller PC board and each sensor (the inlet sensor [PI33], transport path sensor [PI34] and the processing tray sensor [PI38]) open-circuited? YES Connect the connectors securely. Replace the harnesses. NO Is each of the sensors (the inlet sensor, transport path sensor and processing tray sensor) working properly? (Check the movement of the actuator.) NO 1. Connect the connectors of the sensors securely. 2. Attach the actuators securely if their shafts are out of place. 3. Replace the sensors. YES Replace the finisher controller PC board.

• Code: EA40
• Description: Door open jam: The finisher has been released from the equipment during printing. [MJ-1022/1025]
• Remedy: MJ-1022 Is there any paper remaining on the transport path in the finisher or equipment? YES Remove the paper. NO Is the finisher connected with the equipment? NO Connect the finisher with the equipment. YES Is the connector J11 on the finisher controller PC board disconnected? Is the harness connecting the finisher controller PC board and joint sensor (S4) open-circuited? YES Connect the connector securely. Replace the harness. NO Is the joint sensor working properly? NO 1. Connect the connector of the joint sensor securely. 2. Replace the joint sensor. YES Replace the finisher controller PC board.
  MJ-1023/1024 Is there any paper remaining on the transport path in the finisher or equipment? YES Remove the paper. NO Is either of the covers upper and front of the finisher closed? NO Close the cover. YES Is any connectors J707 and J708 on the finisher controller PC board disconnected? Is the harness connecting the finisher controller PC board and upper and front cover opening sensors(PI31 and PI32) open-circuited? YES Connect the connector securely. Replace the harness. NO Is the upper/front cover opening sensor working properly? NO 1. Connect the connector of the upper/front cover opening sensor securely. 2. Replace the upper/front cover opening sensor. YES Is the connector J719 on the finisher controller PC board disconnected? Is the harness connecting the finisher controller PC board and front cover switch (MS31) open-circuited? YES Connect the connector securely. Replace the harness. NO Is the front cover switch working properly? NO 1. Connect the connector of the front cover switch securely. 2. Replace the front cover switch. YES Is the connector J5 on the punch controller PC board disconnected? Is the harness connecting the punch controller PC board and upper door switch (MSW61) open-circuited? Is the harness connecting the punch controller PC board and front door switch (MSW62) open-circuited? YES Connect the connector securely. Replace the harness. NO Are the upper and front door switches working properly? NO 1. Connect the connectors of the upper and front door switches securely. 2. Replace the upper/front door switches. YES Replace the finisher controller PC board.

• Code: EA50
• Description: Stapling jam: Stapling is not performed properly. [MJ-1022/1025]
• Remedy: MJ-1022 Is there any paper remaining on the transport path in the finisher or equipment or on the stapling tray? YES Remove the paper. NO Is the jam cleared by taking off the staple cartridge from the finisher and removing the staple sheet slid from the staple case? YES End. NO Is the connector J8 on the finisher controller PC board disconnected? Is the harness connecting the finisher controller PC board and stapling home position sensor (S17) open-circuited? YES Connect the connector securely. Replace the harness. NO Is the stapling home position sensor working properly? NO 1. Connect the connector of the stapling home position sensor securely. 2. Replace the stapling home position sensor. YES Replace the finisher controller PC board. MJ-1023/1024 Is there any paper remaining on the transport path in the finisher or equipment or on the stapling tray? YES Remove the paper. NO Is the jam cleared by taking off the staple cartridge from the finisher and removing the staple sheet slid from the staple case? YES End. NO Is the connector J721B on the finisher controller PC board disconnected? Is the harness connecting the finisher controller PC board and staple home position sensor (PI40) opencircuited? YES Connect the connector securely. Replace the harness. NO Is the staple home position sensor working properly? NO 1. Connect the connector of the staple home position sensor securely. 2. Replace the staple home position sensor. YES Replace the finisher controller PC board.

• Code: EA60
• Description: Early arrival jam: The inlet sensor detects the paper earlier than a specified timing. [MJ-1022]
• Remedy: MJ-1022 Is there any paper remaining on the transport path in the finisher or equipment? YES Remove the paper. NO Is the connector J10 on the finisher controller PC board disconnected? Is the harness connecting the finisher controller PC board and inlet sensor (S2) open-circuited? YES Connect the connector securely. Replace the harness. NO Is the inlet sensor working properly? (Check the movement of the actuator.) NO 1. Connect the connector of the inlet sensor securely. 2. Attach the actuator securely if its shaft is out of place. 3. Replace the inlet sensor. YES Replace the finisher controller PC board. MJ-1023/1024 Is there any paper remaining on the transport path in the finisher or equipment? YES Remove the paper. NO Is the connector J708 on the finisher controller PC board disconnected? Is the harness connecting the finisher controller PC board and inlet sensor (PI33) open-circuited? YES Connect the connector securely. Replace the harness. NO Is the inlet sensor working properly? (Check the movement of the actuator.) NO 1. Connect the connector of the inlet sensor securely. 2. Attach the actuator securely if its shaft is out of place. 3. Replace the inlet sensor. YES Replace the finisher controller PC board.

• Code: EA70
• Description: Stack delivery jam: It cannot deliver the stack of paper on the intermediary process tray to the stack tray. [MJ-1022/1025]
• Remedy: 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? NO 1. Connect the connector of the stack delivery lever home position sensor securely. 2. Replace the stack delivery lever home position sensor. YES Replace the finisher controller PC board.

• Code: EA80
• Description: Stapling jam: Stapling is not performed properly. [MJ-1024]
• Remedy: MJ-1024 Is there any paper remaining on the transport path or the stapling tray in the finisher, saddle stitcher section or equipment? YES Remove the paper. NO Is the jam cleared by taking off the staple cartridge from the finisher and removing the staples stuck in the stapling unit? YES End. NO Is the connector J8 on the saddle stitcher controller PC board disconnected? Is the harness connecting the saddle stitcher controller PC board and stitcher home position switch (rear: SW5, front: SW7) open-circuited? YES Connect the connector securely. Replace the harness. NO Are the stitcher home position switches working properly? NO 1. Connect the connectors of the stitcher home position switches securely. 2. Replace the stitcher home position switches. YES Replace the saddle stitcher controller PC board.

• Code: EA90
• Description: Door open jam: The delivery cover or the inlet cover has opened during printing [MJ-1024].
• Remedy: MJ-1024 Is there any paper remaining on the transport path in the finisher, saddle stitcher section or equipment? YES Remove the paper. NO Is the saddle stitcher door closed? NO Close the door. YES Is either of the connectors J10 or J11 on saddle stitcher controller PC board disconnected? Are the harnesses between the saddle stitcher controller PC board and cover opening sensors (delivery cover sensor [PI3], inlet cover sensor [PI9]) open-circuited? YES Connect the connector securely. Replace the harness. NO Is each of the sensors (delivery cover sensor, inlet cover sensor) working properly? NO 1. Connect the connectors of the each sensor securely. 2. Replace the sensors. YES Replace the finisher controller PC board.