• Code: S6-3122
• Display: Network cable is disconnected. Check it.
• Description: Network cable is disconnected.
• Remedy: 1) Turn the machine off then on. 2) Check if the network harness and connector are correctly connected. a) Insert the network harness to connector rightly. b) Check the LED light near the network connector. - If it is connected correctly, green lamp is turn on. - If not, the orange lamp is flickers. 3) If the problem is persists, replace the main board(JC92-02452A).

• Code: S6-3123
• Display: This IP address conflicts with that of other system. Check it.
• Description: Network error. (IP address conflicts with that of another system or Communication error)
• Remedy: • Change the IP adredd (Machine Setup > Network Setting > Login > TCP/IP > Select the network protocol > IP Setting

• Code: S6-3128
• Display: 802.1x authentication failed. Please Contact the System Administrator
• Description: There is no response when checking the ping test. ID or Password is incorrect.
• Remedy: 1) Change the IP adredd (Machine Setup > Network Setting > Login > TCP/IP > Select the network protocol > IP Setting 2) Inut the Network Login ID and Password correctly.

• Code: S7-2110
• Display: Fuser Failure: #S7-2110. Turn off then on
• Description: The fuser unit is overheated.
• Remedy: 1) Turn the machine off. Re-install the fuser unit. Then turn the machine on. 2) Remove the fuser unit. After open the jam cover, check jammed or wrapped paper is in the fuser unit. 3) Check if the contact type thermistor(1404-001567) or Non-contact type thermistor(1404-001453)is broken. 4) If the problem persists, replace the Fuser unit(110V : JC91-01049A / 220V : JC91-01050A). 5) If the problem persists, replace the Main board(JC92-02452A) or FDB board(110V : JC44-00210A, 220V : JC44-00211A), SMPS(110V : JC44-00093A, 220V : JC44-00100A)

• 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: • U1-2113 : Error occurs at non-contact type Thermistor • U1-2119 : Error occurs at contact type Thermistor 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. 2) Remove the fuser unit. After opening 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 : 4713-001632 / 220V : 4713-001633) 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 the contact type thermistor(1404-001567) or Non-contact type thermistor(1404-001453)is broken. 4) If the problem persists, replace the Fuser unit(110V : JC91-01049A / 220V : JC91-01050A). 5) If the problem persists, replace the Main board(JC92-02452A) 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(JC66-03178A) is broken. - Check if there are abnormal parts of the pressure control unit. c) Check if the fuser-motor is abnormal via service-mode. (Diagnostics > Engine Diagnostics > Engine Test Routines > 109-0140) 3) If the problem persists, replace the Fuser unit(110V : JC91-01063A, 220V : JC91-01064A) 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 rises abnormally.
• Remedy: • U1-2132 : Error occurs at non-contact type Thermistor • U1-2135 : Error occurs at contact type Thermistor 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. (Refer to 3.2.2. Fuser unit) 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 jammed or wrapped paper is in the fuser unit. 4) If the problem persists, Check the following: a) Check if the Halogen lamp (110V : 4713-001632 / 220V : 4713-001633) 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 the contact type thermistor(1404-001567) or Non-contact type thermistor(1404-001453) is broken. 5) If the problem persists, replace the Fuser unit(110V : JC91-01049A / 220V : JC91-01050A). 6) If the problem persists, replace the Main board(JC92-02452A) 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: • U1-2141 : Error occurs at non-contact type Thermistor • U1-2142 : Error occurs at contact type Thermistor 1) Turn the machine off. Re-install the fuser unit, then turn the machine on. (Refer to 3.2.2. Fuser unit) 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 contact type thermistor(1404-001567) or Non-contact type thermistor(1404-001453) is broken. 5) If the problem persists, replace the Fuser unit(110V : JC91-01049A / 220V : JC91-01050A). 6) If the problem persists, replace the Main board(JC92-02452A) or FDB board(110V : JC44-00210A, 220V : JC44-00211A), SMPS(110V : JC44-00093A, 220V : JC44-00100A)