• Code: E520
• Description: Stop jam in the ADU: The paper does not reach the ADU exit sensor after it has passed the ADU entrance sensor.
• Remedy: Open the ADU. Is there any paper in front of the ADU entrance sensor? YES Remove the paper. NO Is the ADU entrance sensor working? (Perform the input check in the test mode: 03-[FAX]OFF/[1]/[D]) NO 1. Check if the connector of the ADU entrance sensor is disconnected. 2. Check if the connector CN311 on the LGC board is disconnected. 3. Check if the connector pins are disconnected and the harnesses are open circuited. 4. Check if the conductor patterns on the LGC board are short circuited or open circuited. 5. Replace the ADU entrance sensor. 6. Replace the LGC board. YES Is the exit motor (rotating in reverse) working? (Perform the output check in the test mode: 03-121/171) NO 1. Check if the connector of the exit motor is disconnected. 2. Check if the connector CN402 and CN405 on the exit board is disconnected. 3. Check if the connector CN303 on the LGC board is disconnected. 4. Check if the connector pins are disconnected and the harnesses are open circuited. 5. Check if the conductor pattern on the LGC board and exit board is short circuited or open circuited. 6. Replace the exit motor. 7. Replace the ADU exit sensor. 8. Replace the exit board. 9. Replace the LGC board. YES Check the rollers in the ADU and the exit roller of the equipment. Replace them if they are worn out.

• Code: E550
• Description: Paper remaining jam on the transport path: The paper is remaining on the transport path when printing is finished (caused by a multiple paper feeding).
• Remedy: Open the cover of the unit/area whose picture is blinking on the control panel. Is there any paper on the transport path? YES Remove the paper. NO Is the sensor in the jamming area working? (Perform the input check in the test mode: refer to the following table) NO.. 1. Check if the connector of the sensor is disconnected. 2. Check if any of the connectors on the LGC board is disconnected. 3. Check if the connector pins are disconnected and the harnesses are open circuited. 4. Check if the conductor pattern on the LGC board is short circuited or open circuited. 5. Replace the sensor. 6. Replace the LGC board. YES Replace the LGC board.
  Registration area Automatic duplexing unit Registration sensor 03-[FAX]ON/[9]/[A] 1st transport sensor 03-[FAX]OFF/[6]/[A] Exit area Automatic duplexing unit Exit sensor 03-[FAX]ON/[9]/[B] ADU ADU ADU entrance sensor 03-[FAX]OFF/[1]/[D] ADU exit sensor 03-[FAX]OFF/[1]/[E] Feeding area (Main unit) Feed cover 2nd transport sensor 03-[FAX]OFF/[7]/[A] LCF LCF side cover LCF feed sensor 03-[FAX]OFF/[4]/[C] PFP PFP side cover PFP upper drawer feed sensor 03-[FAX]OFF/[2]/[B] PFP lower drawer feed sensor 03-[FAX]OFF/[3]/[B] Bridge unit Bridge unit Bridge unit transport sensor-1 03-[FAX]ON/[4]/[G] 03-[FAX]ON/[3]/[G] Bridge unit transport sensor-2 03-[FAX]ON/[4]/[F] 03-[FAX]ON/[3]/[G] JSP JSP cover JSP feed sensor 03-[FAX]ON/[3]/[G] OCT OCT cover OCT feed sensor 03-[FAX]ON/[3]/[G] Finisher Finisher door Sensors in the finisher

• Code: E570
• Description: Jam not reaching the reverse sensor: The paper which has passed the exit sensor does not reach the reverse sensor
• Remedy: 1. Open the ADU and remove paper if there is any on the transport path. * If the error still occurs, check the following: 2. Is the reverse sensor working? (Perform the input check in the test mode: 03-[FAX]ON/[9]/[C]) * If it is working normally, go to step 6. If it is not, check 3 to 5. 3. Check if the connector pins are disconnected or the harnesses are open circuited between the reverse sensor and the connector CN304 on the LGC board. Correct if there is any abnormality. 4. Replace the reverse sensor. 5. Replace the LGC board. 6. Is the reverse motor working? (Perform the output check in the test mode: 03-123/173) * If it is working normally, go to step 11. If it is not, check 7 to 10. 7. Check if the connector pins are disconnected or the harnesses are open circuited between the reverse motor and the connector CN304 on the LGC board (and also the connectors CN401 and CN406 on the MOT2 board). Correct if there is any abnormality. 8. Replace the reverse motor. 9. Replace the MOT2 board. 10.Replace the LGC board. 11.Check the exit roller. Replace it if it is worn out.

• Code: E580
• Description: Stop jam at the reverse sensor: The trailing edge of the paper does not pass the reverse sensor after its leading edge has reached this sensor
• Remedy: 1. Open the ADU and remove paper if there is any on the transport path. * If the error still occurs, check the following: 2. Is the reverse sensor working? (Perform the input check in the test mode: 03-[FAX]ON/[9]/[C]) * If it is working normally, go to step 6. If it is not, check 3 to 5. 3. Check if the connector pins are disconnected or the harnesses are open circuited between the reverse sensor and the connector CN304 on the LGC board. Correct if there is any abnormality. 4. Replace the reverse sensor. 5. Replace the LGC board. 6. Is the reverse motor working? (Perform the output check in the test mode: 03-123/173) * If it is working normally, go to step 11. If it is not, check 7 to 10. 7. Check if the connector pins are disconnected or the harnesses are open circuited between the reverse motor and the connector CN304 on the LGC board (and also the connectors CN401 and CN406 on the MOT2 board). Correct if there is any abnormality. 8. Replace the reverse motor. 9. Replace the MOT2 board. 10.Replace the LGC board. 11.Check the exit roller. Replace it if it is worn out.

• Code: E712
• Description: Jam not reaching the registration sensor: The original fed from the original feeding tray does not reach the registration sensor.
• Remedy: 1. Clean the pickup roller, feed roller and separation roller if they are stained. 2. Flatten the original if it is folded or excessively curled and place it again. 3. Is the original registration sensor working? (Perform the input check: 03-[FAX]ON/[7]/[H]) * If it is working properly, proceed to 7. If not, check 3 to 6. 4. Check if the connector CN74 on the RADF board is disconnected from the original registration sensor or the harnesses are open circuited. Correct if any. 5. Replace the original registration sensor. 6. Replace the RADF board. 7. Replace the pickup roller, feed roller and separation roller if they are worn out.

• Code: E714
• Description: Feed signal reception jam: The feed signal is received even no original exists on the original feeding tray.
• Remedy: 1. Is the empty sensor working? (Perform the input check: 03-[FAX]ON/[7]/[B]) 2. Check if the lever of empty sensor is working normally. 3. Check if the connector CN75 on the RADF board is disconnected from the empty sensor or the harnesses are open circuited. Correct if any. 4. Replace the empty sensor. 5. Replace the RADF board.

• Code: E721
• Description: Jam not reaching the read sensor: The original does not reach the read sensor after it has passed the registration sensor (when scanning obverse side) or the reverse sensor (when scanning reverse side).
• Remedy: 1. Clean the registration roller and the read roller if they are stained. 2. Is the read sensor working? (Perform the input check: 03-[FAX]ON/[7]/[G]) * If it is working properly, proceed to 6. If not, check 3 to 5 below. 3. Check if the connector CN76 on the RADF board is disconnected from the read sensor or the harnesses are open circuited. Correct if any. 4. Replace the read sensor. 5. Replace the RADF board. 6. Replace the registration roller and the read roller if they are worn out.

• Code: E722
• Description: Jam not reaching the exit sensor (during scanning): The original which passed the read sensor does not reach the exit sensor when it is transported from the scanning section to exit section.
• Remedy: 1. Clean the read roller if it is stained. 2. Is the original exit/reverse sensor working? (Perform the input check: 03-[FAX]ON/[7]/[E]) * If it is working properly, proceed to 6. If not, check 3 to 5 below. 3. Check if the connector CN75 on the RADF board is disconnected from the original exit/reverse sensor or the harnesses are open circuited. Correct if any. 4. Replace the original exit/reverse sensor 5. Replace the RADF board. 6. Replace the read roller if it is worn out.