Code :

Code: U1-2141
Display: Fuser Unit Failure #U1-2141 : Turn off then on.
Description: The Fuser is being diagnosed for Over Heat Error.
Remedy: 1. Turn the machine off and turn it on again. 2. Check the following : A. Check the power voltage of the fuser unit. (110V, 220V) B. Check if there is any jammed paper in fuser unit. C. Check if the power voltage is normal. (Is the voltage during the operation ±10% of the rated voltage?) 3. If the problem persists, replace the fuser unit. 4. If the problem persists after replacing the fuser unit, replace the engine board or SMPS.

Code: U2-5111
Display: Black LSU Unit Failure #U2-5111 : Turn off then on.
Description: Black LSU occurs Lready Error.
Remedy: 1. Turn the machine on and turn it off again. Has the error message disappeared? 2. If the problem persists, replace the LSU unit. Caution Never remove the LD PBA with Power on.

Code: U2-5113
Display: Black LSU Unit Failure #U2-5113 : Turn off then on.
Description: - Black LSU occurs Hsync Error. 1. LD is broken. 2. LD harness is not connected correctly.
Remedy: 1. Turn the machine on and turn it off again. Has the error message disappeared? 2. If the problem persists, replace the LSU unit. Caution Never remove the LSU cover.

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