• Code: S6–3123
• Display: Network Problem: IP Conflict.
• Description: IP address conflicts with that of other system. / There is no response when checking the ping test.
• Remedy: Change the machine’s IP address. • Set-up the IP address in this order, Network -> TCP/IP (IPv4) -> STATIC. • In case of DHCP or Bootp, reboot the machine to receive a new IP address.

• Code: S6–3128
• Display: 802.1x Network Error.
• Description: The confirmation was requested for wired port, the server has rejected. / The confirmation protocol is not the same or user information (ID/Password) is wrong.
• Remedy: Check the setting-up for 802.1x confirmation server. • Re-enter the server information and confirmation protocol. • Re-enter the user information.

• Code: U1–2315, U1–2320, U1–2330
• Display: Error #U Turn off then on.
• Description: The temperature control of fuser unit is abnormal.
• Remedy: 1) Turn the machine off. Re-install the fuser unit. Then turn the machine on. Is the error message is disappeared? 2) If the problem persists, turn the machine off and remove the fuser unit. a) Check if the fuser connector is connected properly. b) Check if the input voltage is normal. c) Check if the thermistor is twisted or contaminated. 3) After confirming continuity in the fuser connector and the problem still exists; order an SMPS/HVPS and Fuser Unit and install as is necessary. • HVPS : JC44-00197A • SMPS : JC44-00095D (110V) / JC44-00096D (220V) • Fuser Unit : JC91-01023A (110V) / JC91-01024A (220V)

• Code: U1–2334, U1–2340
• Display: Error #U Turn off then on.
• Description: The temperature control of fuser unit is abnormal.
• Remedy: 1) Turn the machine off. Re-install the fuser unit. Then turn the machine on. Is the error message is disappeared? 2) If the problem persists, turn the machine off and remove the fuser unit. a) Check if the fuser connector is connected properly. b) Check if the input voltage is normal. c) Check if the thermistor is twisted or contaminated. 3) After confirming continuity in the fuser connector and the problem still exists; order an SMPS/HVPS and Fuser Unit and install as is necessary. • HVPS : JC44-00197A • SMPS : JC44-00095D (110V) / JC44-00096D (220V) • Fuser Unit : JC91-01023A (110V) / JC91-01024A (220V)

• Code: U2-1112, U2-1113
• Display: Error #U2-1111 Turn off then on. Error #U2-1113 Turn off then on.
• Description: LSU Motor does not work normally.
• Remedy: 1) Execute the LSU motor test in EDC mode. Check LSU motor operation sound. 2) If there is no sound, remove the right cover. Check if the LSU harness is connected on the main board properly. (picture-1) 3) If it is OK, remove the top cover. Check if the LSU harness is connected on LSU board properly. (picture- 2,3) 4) Check if the LSU harness is defective. (picture-4) 5) Reconnect the LSU harness and then execute the LSU motor test again. 6) If the problem persists, replace the LSU(JC97-04065A). 7) If the problem persists after replacing LSU, replace the main board.