• Code: S6-3123, S6-3128
• Display: This IP address conflicts with that of other system. Check it. 802.1x authentication failed. Please Contact the System Administrator.
• Description: Network error. (IP address conflicts with that of another system. / Communication error / There is no response when checking the ping test.)
• Remedy: • Change the machine’s IP address. 1) Select “Machine Setup” on the touch screen. 2) Select “Networking Setting”. 3) “Log-In”. 4) Select “TCP/IP”. 5) Select the proper item for your machine. 6) Select “IP Setting”. 7) Select the proper item for your machine. 8) Change the IP address.

• Code: S7-2110
• Display: Fuser Failure: #S7-2110. Turn off then on
• Description: Heater control relay is abnormal.
• Remedy: 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. 2) If the problem persists, replace the Fuser unit(110V : JC91-01064A, 220V : JC91-01063A).

• Code: U1-2113, U1-2119
• Display: Fuser Unit Failure: #U1-2113. Fuser Unit Failure: #U1-2119.
• Description: The thermistor can’t measure temperature. The hear-roller will not heat-up.
• Remedy: 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. 2) Remove the fuser unit. After openinging the jam cover, check if jammed or wrapped paper is in the fuser unit. 3) If the problem persists, check the following : a) Check if the Halogen lamp (110V : 4713-001630 / 220V : 4713-001631) is broken or disconnected. b) Check if the AC connection of the Halogen lamp is disconnected or contaminated. c) Check if the thermostat(4712-001098) is disconnected. d) Check if the non-contact type thermistor(1404-001453)is broken. 4) If the problem persists, replace the Fuser unit(110V : JC91-01064A, 220V : JC91-01063A). 5) If the problem persists, replace the Main board(JC92-02429A) or FDB board(110V : JC44-00210A, 220V : JC44-00211A), SMPS(110V : JC44-00093A, 220V : JC44-00100A)

• Code: U1-2115
• Display: Fuser Unit Failure: #U1-2115. Turn off then on.
• Description: The pressure control unit(Cam unit)of the fuser is abnormal.
• Remedy: 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. 2) If the problem persists, check the following : a) When the side-cover closes, check if the operation sound of the pressure control unit occurs. b) Check if the parts of the pressure control unit are abnormal. - Check if the shape of the CAM-REAR(JC66-03299A)) is broken. - Check if there are abnormal parts of the pressure control unit. c) Check if the fuser-motor is abnormal via SVC mode. (Diagnostics > Engine Diagnostics > Engine Test Routines > 109-0140) 3) If the problem persists, replace the Fuser unit(110V : JC91-01064A, 220V : JC91-01063A) 4) If the problem persists, replace the pressure control unit or cam-motor or Main board(JC92-02452A).

• Code: U1-2132, U1-2135
• Display: Fuser Unit Failure: #U1-2132. Fuser Unit Failure: #U1-2135.
• Description: Temperature of the fuser increases abnormally.
• Remedy: 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. 2) Check if the power voltage is normal. (Is the voltage during the operation ±10% of the rated voltage?) 3) Remove the fuser unit. After openinging the jam cover, check if jammed or wrapped paper is in the fuser unit. 4) If the problem persists, Check the following : a) Check if the Halogen lamp (110V : 4713-001630 / 220V : 4713-001631) is broken or disconnected. b) Check if the AC connection of the Halogen lamp is disconnected or contaminated. c) Check if the thermostat(4712-001098) is disconnected. d) Check if the non-contact type thermistor(1404-001453) is broken. 5) If the problem persists, replace the Fuser unit(110V : JC91-01064A, 220V : JC91-01063A). 6) If the problem persists, replace the Main board(JC92-02429A) or FDB board(110V : JC44-00210A, 220V : JC44-00211A), SMPS(110V : JC44-00093A, 220V : JC44-00100A)

• Code: U1-2141, U1-2142
• Display: Fuser Unit Failure: #U1-2141. Fuser Unit Failure: #U1-2142
• Description: Temperature of the thermistor is higher than the maximum allowable temperature.
• Remedy: 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. 2) Check if the power voltage is normal. (Is the voltage during the operation ±10% of the rated voltage?) 3) Remove the fuser unit. After opening the jam cover, check if jammed or wrapped paper is in the fuser unit. 4) If the problem persists, Check the following : a) Check if the non-contact type thermistor(1404-001453) is broken. 5) If the problem persists, replace the Fuser unit(110V : JC91-01064A, 220V : JC91-01063A). 6) If the problem persists, replace the Main board(JC92-02429A) or FDB board(110V : JC44-00210A, 220V : JC44-00211A), SMPS(110V : JC44-00093A, 220V : JC44-00100A)

• Code: U1-2316, U1-2317
• Display: Fuser Unit Failure: #U1-2316. Fuser Unit Failure: #U1-2317
• Description: Temperature of the fuser changes abnormally.
• Remedy: 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. 2) Check if the power voltage is normal. (Is the voltage during the operation+-10% of the rated voltage?) 3) If the problem persists, Check the following : a) Check if the Halogen lamp (110V : 4713-001630 / 220V : 4713-001631) is broken or disconnected. b) Check if the AC connection of the Halogen lamp is disconnected or contaminated. c) Check if the thermistat(4712-001098) is disconnected. d) Check if non-contact type thermistor(1404-001453) is broken. 4) If the problem persists, replace the Fuser unit(110V : JC91-01064A, 220V : JC91-01063A). 5) If the problem persists, replace the Main board(JC92-02429A) or FDB board(110V : JC44-00210A, 220V : JC44-00211A), SMPS(110V : JC44-00093A, 220V : JC44-00100A)

• Code: U1-2335, U1-233A
• Display: Fuser Unit Failure: #U1-2335. Fuser Unit Failure: #U1-233A.
• Description: Temperature of the thermistor is abnormally low.
• Remedy: 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. 2) Check if the power voltage is normal. (Is the voltage during the operation ±10% of the rated voltage?) 3) Remove the fuser unit. After opening the jam cover, check if jammed or wrapped paper is in the fuser unit. 4) If the problem persists, Check the following : a) Check if the Halogen lamp (110V : 4713-001630 / 220V : 4713-001631) is broken or disconnected. b) Check if the AC connection of the Halogen lamp is disconnected or contaminated. c) Check if the thermostat(4712-001098) is disconnected. d) Check if the non-contact type thermistor(1404-001453) is broken. 5) If the problem persists, replace the Fuser unit(110V : JC91-01064A, 220V : JC91-01063A). 6) If the problem persists, replace the Main board(JC92-02429A) or FDB board(110V : JC44-00210A, 220V : JC44-00211A), SMPS(110V : JC44-00093A, 220V : JC44-00100A)