Code:  E450 Description: LCF side cover open jam: The LCF side cover has opened during printing. Remedy: Is the LCF side cover open? YES Remove the paper if there is any, then close the cover. NO Is the LCF side cover opening/closing switch working? (Perform the input check in the test mode: 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 CN310 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 patterns on the LCF board and LGC board are short circuited 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.

  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 close the cover. NO Is the side door switch working? (Perform the input check in the test mode: 03-[FAX]ON/[2]/[F]) NO 1) Check if the connector of the side door switch is disconnected. 2) Check if the connector CN304 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 side door switch. 6) Replace the LGC board. YES 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 close the ADU. NO Is the ADU opening/closing switch working? (Perform the input check in the test mode: 03-[FAX]OFF/[1]/[F]) NO 1) Check if the connector of the ADU opening/closing switch is disconnected. 2) Check if either of the connectors CN562 or CN217 on the ADU board is disconnected. 3) Check if the connector CN304 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 patterns on the ADU board and LGC board are short circuited 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:  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 close the cover. NO Is the PFP side cover opening/closing switch working? (Perform the input check in the test mode: 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 CN310 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 patterns on the PFP board and LGC board are short circuited 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:  E410 Description: Front cover open jam: The front cover has opened during printing. Remedy: Is the front cover open? YES Close the cover. NO Is the front cover opening/closing switch working? (Perform the input check in the test mode: 03-[FAX]ON/[2]/[D]) NO 1) Check if the connector of the front cover opening/closing switch is disconnected. 2) Check if the connector CN303 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 front cover opening/closing switch. 6) Replace the LGC board. YES Is the voltage of 24V being supplied from the power supply unit? (Perform the input check in the test mode: 03-[FAX] ON/[1]/[C]) NO 1) Check if the connector for 24 V power supply is disconnected. 2) Check if the connector CN303 on the LGC board is disconnected. 3) Check if the connector pins are disconnected and the harness

  Code:  E400 Description: Transfer cover open jam: The transfer cover has opened during printing. Remedy: Is the transfer cover open? YES Remove paper if there is any, then close the cover. NO Is the transfer cover opening/closing switch working? (Perform the input check in the test mode: 03-[FAX]ON/[2]/[G]) NO 1) Check if the connector of the transfer cover opening/closing switch is disconnected. 2) Check if the connector CN305 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 front cover opening/closing switch. 6) Replace the LGC board. YES Replace the LGC board. Is the voltage of 24V being supplied from the power supply unit? (Perform the input check in the test mode: 03-[FAX] ON/[1]/[C]) NO 1) Check if the connector for 24 V power supply is disconnected. 2) Check if the connector CN305 on the LGC board is disc

  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 2nd transport sensor? YES Remove the paper. NO Is the 2nd transport sensor working? (Perform the input check in the test mode: 03-[FAX]OFF/[7]/[E] NO 1) Check if the connector of the 2nd transport sensor is disconnected. 2) Check if the connector CN304 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 2nd transport sensor. 6) Replace the LGC board. YES Are the (lower/middle) transport clutches working? (Perform the output check in the test mode: 03-203, 205) NO 1) Check if the connectors of the (lower/middle) transport clutches are disconnected. 2) Check if the connector CN305