Code :

Code: U1-1211
Display: SMART PANEL:Fuser Unit Failure : #U1-1211. Turn off then on.
Description: 1. The fuser unit is defective. 2. The SMPS Triac is defective. 3. The main board is defective. Using an incorrect type of paper may create a fusing error. Please use only paper that meets the specifications required by the machine.
Remedy: 1. Remove the both side covers. 2. Remove the screw from the rear. 3. Remove the Cover-Top. 4. Remove the Cover-Exit. 5. Remove the matal plate after unplugging the fuser connector. 6. Replace the fuser unit after removing the screw. 7. The assembly is reverse order of disjointing.

Code: U1-2121
Display: SMART PANEL:Fuser Unit Failure : #U1-2121. Turn off then on.
Description: 1. The fuser unit is defective. 2. The SMPS Triac is defective. 3. The main board is defective. Using an incorrect type of paper may create a fusing error. Please use only paper that meets the specifications required by the machine.
Remedy: 1. Remove the both side covers. 2. Remove the screw from the rear. 3. Remove the Cover-Top. 4. Remove the Cover-Exit. 5. Remove the metal plate after unplugging the fuser connector. 6. Replace the fuser unit after removing the screw. 7. The assembly is reverse order of disjointing.

Code: U2-1112
Display: SMART PANEL:LSU Unit Failure: #U2-1112. Turn off then on.
Description: 1. An error between the LSU(Laser Scanning Unit) and the control circuit of the Main board has occurred.
Remedy: 1. Check the LSU connector. 2. Replace the LSU. 3. If the problem persists, replace the main board.

Code: U2-1114
Display: SMART PANEL:LSU Failure: #U2-1114. Turn off then on.
Description: 1. An error between the LSU(Laser Scanning Unit) and the control circuit of the Main board has occurred.
Remedy: 1. Check the LSU connector. 2. Replace the LSU. 3. If the problem persists, replace the main board.

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