Code :

Code: U1-2340, U1-2341
Display: Error #U1-2340 Turn off then on. Error #U1-2341 Turn off then on.
Description: The temperature control of fuser unit is abnormal. (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: U2-1111, U2-1113
Display: Error #U2-1111 Turn off then on. / Error #U2-1113 Turn off then on.
Description: LSU Motor does not work normally. 1. Harness connection error. 2. LSU is defective. 3. Main board is defective.
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. 3. If it is OK, remove the top cover. Check if the LSU harness is connected on LSU board properly. 4. Check if the LSU harness is defective. 5. Reconnect the LSU harness and then execute the LSU motor test again. 6. If the problem persists, replace the LSU. 7. If the problem persists after replacing LSU, replace the main board.

Code: U3-3113, U3-3114, U3-3213, U3-3313, U3-3314
Display: Document jam. Remove jam.
Description: A document jam was detected in ADF/DADF unit.
Remedy: 1. Remove the jammed paper. 2. If the problem persists, turn the machine off then on. 3. Open the ADF/DADF COVER-OPEN. Check if the roller in pick up unit is worn out or contaminated. Replace the pick up unit. 4. If the document jam occurs continually, check the following. a. Check if the ADF/DADF drive unit is working normally. b. Check if the connection between ADF/DADF and scanner is OK.

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