Description: Door is open or the cover open switch is defective.
Remedy: 1) Check if the front cover is closed perfectly. 2) Check if the connection between the main board and HVPS board is correct. 3) Check if the cover open switch on HVPS board is operated properly. If it is defective, replace the HVPS board.
Code: S3–3121
Display: Scanner Locked.
Description: CIS unit in the scanner does not move.
Remedy: 1) Check if the CIS unit moves when turning the machine off then on. 2) Check if the CIS cable is connected correctly. Reconnect it. 3) If the CIS unit is defective, replace it. 4) Check if there is any defective part in the scanner. Find and replace it. 5) If the problem persists, replace the main board.
Code: S6–3123
Display: Network Problem : IP Conflict
Description: Network has some problem. (IP address conflicts with that of other system. / Communication error / There is no response when checking the ping test.)
Remedy: Change the machine’s IP address. • Execute the Samsung Easy Printer Manager program. (Device setting - Network - IP address). Change the IP address. • In case of DHCP or Bootp, reboot the machine to receive a new IP address.
Code: U1–2315, U1–2320
Display: Error #U1-2315 Turn off then on Error #U1-2320 Turn off then on
Description: The temperature control of fuser unit is abnormal. (Open Heat Error)
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. Check if the fuser connector is connected properly. Check if the input voltage is normal.
Code: U1–2330, U1–2331, U1–2333
Display: Error #U1-2330 Turn off then on Error #U1-2331 Turn off then on Error #U1-2333 Turn off then on Error #U1-2334 Turn off then on Error #U1-2340 Turn off then on
Description: The temperature control of fuser unit is abnormal. (Low Heat Error or Over Heat Error)
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.
Code: U1–2334, U1–2340
Display: Error #U1-2330 Turn off then on Error #U1-2331 Turn off then on Error #U1-2333 Turn off then on Error #U1-2334 Turn off then on Error #U1-2340 Turn off then on
Description: The temperature control of fuser unit is abnormal. (Low Heat Error or Over Heat Error)
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.