• Code: E3C0
• Description: LCF transport jam (Paper not reaching the registration sensor): The paper does not reach the registration sensor after it has passed the 1st transport sensor.
• Remedy: Open the jam access cover. Is there paper in front of the registration sensor? YES Remove the paper. NO Is the registration sensor working? (Perform the input check: 03-[FAX]ON/[9]/[E]) NO 1. Check if the connector of the registration sensor is disconnected. 2. Check if the connector CN345 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the registration sensor. 6. Replace the LGC board. YES Are the upper transport clutches (high/low speed) working? (Perform the output check: 03-439, 440) NO 1. Check if the connectors of the upper transport clutches (high/low speed) are disconnected. 2. Check if the connector CN362 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the upper transport clutches (high/low speed). 6. Replace the LGC board. YES 1. Check the condition of the feed roller, separation roller and pickup roller of each paper source, and replace them if they are worn out. 2. Check the transport roller. Replace it if it is worn out.

• Code: E3D0
• Description: LCF transport jam (Paper not reaching the 1st transport sensor): The paper does not reach the 1st transport sensor after it has passed the 2nd transport sensor.
• Remedy: Open the jam access cover. Is there paper in front of the upper drawer feed sensor? YES Remove the paper. NO Is the upper drawer feed sensor working? (Perform the input check: 03-[FAX]ON/[3]/[H]) NO 1. Check if the connector of the upper drawer feed sensor is disconnected. 2. Check if the connector CN345 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the upper drawer feed sensor. 6. Replace the LGC board. YES Are the lower transport clutches (high/low speed) working? (Perform the output check: 03-203, 205) NO 1. Check if the connectors of the lower transport clutches (high/low speed) are disconnected. 2. Check if the connector CN337 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the lower transport clutches (high/low speed). 6. Replace the LGC board. YES 1. Check the condition of the feed roller, separation roller and pickup roller of each paper source, and replace them if they are worn out. 2. Check the transport roller. Replace it if it is worn out.

• Code: E3E0
• Description: LCF transport jam (Paper not reaching the 2nd transport sensor): The paper does not reach the 2nd transport sensor after it has passed the LCF feed sensor
• Remedy: Open the side cover. Is there paper in front of the lower drawer feed sensor? YES Remove the paper. NO Is the lower drawer feed sensor working? (Perform the input check: 03-[FAX]ON/[3]/[G]) NO 1. Check if the connector of the lower drawer feed sensor is disconnected. 2. Check if the connector CN345 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the lower drawer feed sensor. 6. Replace the LGC board. YES Are the lower transport clutches working? (Perform the output check: 03-203, 205) NO 1. Check if the connectors of the lower transport clutches (high/low speed) are disconnected. 2. Check if the connector CN337 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the lower transport clutches (high/low speed). 6. Replace the LGC board. YES When the paper fed from the PFP: Is the PFP transport clutch working? (Perform the output check: 03-225) NO 1. Check if the connector of the PFP transport clutch is disconnected. 2. Check if any of the connectors CN241, CN242 and CN244 on the PFP board is disconnected. 3. Check if the connector CN332 on the LGC board is disconnected. 4. Check if the connector pins are disconnected or the harnesses are open-circuited. 5. Check if the conductor patterns on the PFP board and LGC board are short- or open- circuited. 6. Replace the PFP transport clutch. 7. Replace the PFP board. 8. Replace the LGC board. YES 1. Check the condition of the feed roller, separation roller and pickup roller of each paper source, and replace them if they are worn out. 2. Check the transport roller. Replace it if it is worn out.

• Code: E400
• Description: Transfer cover open jam: The transfer cover has opened during printing.
• Remedy: Is the jam access cover open? YES Remove paper if there is any, then shut the cover. NO Is the voltage of 24V being supplied from the power supply unit? (Perform the input check: 03-[FAX] ON/[1]/[H]) NO 1. Check if the connector for 24V power supply is disconnected. 2. Check if the connector CN350 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the LGC board. YES Replace the LGC board.

• Code: E410
• Description: Front cover open jam: The front cover has opened during printing.
• Remedy: Is the front cover open? YES Shut the cover. NO Is the voltage of 24V being supplied from the power supply unit? (Perform the input check: 03-[FAX] ON/[1]/[H]) NO 1. Check if the connector for 24V power supply is disconnected. 2. Check if the connector CN350 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the LGC board. YES Is the front cover opening/closing switch working? (Perform the input check: 03-[FAX]OFF/[7]/[F] NO 1. Check if the connector of the front cover opening/closing switch is disconnected. 2. Check if the connector CN345 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the front cover opening/closing switch. 6. Replace the LGC board. YES Replace the LGC board.

• Code: E420
• Description: PFP side cover open jam: The PFP side cover has opened during printing.
• Remedy: Is the PFP side cover open? YES Remove the paper if there is any, then shut the cover. NO Is the PFP side cover opening/closing switch working? (Perform the input check: 03-[FAX]OFF/[2]/[F]) NO 1. Check if the connector of the PFP side cover opening/closing switch is disconnected. 2. Check if either of the connectors CN241 or CN243 on the PFP board is disconnected. 3. Check if the connector CN332 on the LGC board is disconnected. 4. Check if the connector pins are disconnected or the harnesses are open-circuited. 5. Check if the conductor patterns on the PFP board and LGC board are short- or open- circuited. 6. Replace the PFP side cover opening/closing switch. 7. Replace the PFP board. 8. Replace the LGC board. YES 1. Replace the PFP board. 2. Replace the LGC board.

• Code: E430
• Description: ADU open jam: The ADU has opened during printing.
• Remedy: Is the ADU open? YES Remove the paper if there is any, then shut the ADU. NO Is the ADU opening/closing switch working? (Perform the input check: 03-[FAX]OFF/[8]/[F]) NO 1. Check if the connector of the ADU opening/closing switch is disconnected. 2. Check if either of the connectors CN211 or CN217 on the ADU board is disconnected. 3. Check if the connector CN340 on the LGC board is disconnected. 4. Check if the connector pins are disconnected or the harnesses are open-circuited. 5. Check if the conductor patterns on the ADU board and LGC board are short- or open- circuited. 6. Replace the ADU opening/closing switch. 7. Replace the ADU board. 8. Replace the LGC board. YES 1. Replace the ADU board. 2. Replace the LGC board.

• Code: E440
• Description: Side cover open jam: The side cover has opened during printing.
• Remedy: Is the side cover open? YES Remove the paper if there is any, then shut the cover. NO Is the side door switch working? (Perform the input check: 03-[FAX]OFF/[7]/[E]) NO 1. Check if the connector of the side door switch is disconnected. 2. Check if the connector CN345 on the LGC board is disconnected. 3. Check if the connector pins are disconnected or the harnesses are open-circuited. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the side door switch. 6. Replace the LGC board. YES Replace the LGC board. [E450] LCF side cover open jam Is the LCF side cover open? YES Remove the paper if there is any, then shut the cover. NO Is the LCF side cover opening/closing switch working? (Perform the input check: 03-[FAX]OFF/[5]/[D]) NO 1. Check if the connector of the LCF side cover opening/closing switch is disconnected. 2. Check if either of the connectors CN100 or CN106 on the LCF board is disconnected. 3. Check if the connector CN332 on the LGC board is disconnected. 4. Check if the connector pins are disconnected or the harnesses are open-circuited. 5. Check if the conductor patterns on the LCF board and LGC board are short- or open- circuited. 6. Replace the LCF side cover opening/closing switch. 7. Replace the LCF board. 8. Replace the LGC board. YES 1. Replace the LCF board. 2. Replace the LGC board.