Samsung CLX9301NA

• Code: A2-1211, A2-1212, A2-2310, A2-2311
• Display: Fan Failure: #. Turn off then on. Call for service if the problem persists
• Description: SMPS or Fuser fan is not operational.
• Remedy: NOTE • SMPS fan error : A2-1211 / A2-1212 • Fuser fan error : A2-2310 / A2-2311 1) Turn the machine off. 2) Remove the rear cover. 3) Check if the corresponding fan connector is connected correctly. 4) If the connection is OK, Enter SVC mode and execute fan test. (Diagnostics > Engine Diagnostics > Engine Test Routines) • 100-0260 : SMPS Fan Run • 109-0040 : Fuser Fan Run 5) If the fan is not operational, measure the fan power. (Red line) a) If 24V power is generated, replace the defective fan. • Fuser Fan : JC31-00161A • SMPS Fan : JC31-00160B b) If 24V power is not generated, • Measure the 24V power on the SMPS board. If the SMPS board(JC44-00100A (220V) / JC44-00093A (110V)) is defective, replace it. • If the SMPS board is normal, replace the main board(JC92-02429A). 6) If the fan operation is normal but the error persists, a) Check the yellow line signal with DVM. b) Check fan operation as connected or disconnected. • If the Lock signal is 0V continually, check the harness. If the harness is OK, replace the main board. • If the signal value is different from the table above, replace the fan.

• Code: A3-2113
• Display: The CTD sensor is dirty. Please clean it with soft cloth or paper(A3-2113)
• Description: CTD sensor window is contaminated.
• Remedy: 1) Open the side cover 2) Clean the sensor window [A] with a soft cloth. 3) Close the side cover. 4) Enter SVC mode. Select the “CTD Sensor Cleaning” (Diagnostics Image Management > Auto Color Tone Adjustment Condition > CTD Sensor Cleaning) 5) When pop up appears, select the “Yes” button. NOTE a) CTD sensor calibration will start. Then “CTD sensor failure” error will be solved b) If you don’t execute the CTD sensor cleaning in SVC mode, error message persists.

• Code: A3-3111, A3-3112, A3-3113, A3-3114
• Display: Sensor Failure: #. Turn off then on. Call for service if the problem persists
• Description: The NC sensor in the fuser unit is defective. / The sensor signal is abnormal due to a defective harness.
• Remedy: • A3-3111 : Center NC sensor is in short status. • A3-3112 : Center NC sensor is in open status. • A3-3113 : Side NC sensor is in short status. • A3-3114 : Side NC sensor is in open status. 1) Enter SVC mode. Execute sensor test to check the sensor operation. (Diagnostics > Engine Diagnostics > Engine Test Routines) • 109-0000 : Fuser Temperature A • 109-0010 : Fuser Temperature B 2) Remove and disassemble the fuser unit. 3) Measure the resistance value of the thermistor (1404-001453). If the measured value is out of 307KOhm - 430KOhm at 25C, replace the thermistor. 4) Install the fuser unit after replacing the thermistor. 5) If the error persists, replace the fuser unit (JC91-01063A(220V) / JC91-01064A (110V)). 6) If the error persists after replacing fuser unit, replace the main board(JC92-02429A).

• Code: A3-3210, A3-3211, A3-3212
• Display: Sensor Failure: #. Turn off then on. Call for service if the problem persists
• Description: Inner temperature sensor is defective.
• Remedy: • A3.3210 : Inner temperature sensor value is abnormal. • A3.3211 : Inner temperature sensor is in short status. • A3.3212 : Inner temperature sensor is in open status. 1) Enter SVC mode. Execute sensor test to check the sensor operation.(Diagnostics > Engine Diagnostics > Engine Test Routines > 109-0012 Inner Temperature ) 2) Open the side cover. Measure the resistance value of the connector at both ends. • If the values is not in 10KOhm +-1% (at 25C), replace the photo sensor (1404-001417). 3) If the sensor is normal, replace the main board(JC92-02429A).

• Code: A3-3310, A3-3311, A3-3312, A3-3410, A3-3411, A3-3412
• Display: Sensor Failure: #. Turn off then on. Call for service if the problem persists
• Description: Outer temperature/humidity sensor is defective.
• Remedy: • A3.3310 / A3.3311 / A3.3312 : Temperature function is abnormal. • A3.3410 / A3.3411 / A3.3412 : Humidity function is abnormal. 1) Enter SVC mode. Execute sensor test to check the sensor operation. (Diagnostics > Engine Diagnostics > Engine Test Routines > 109-0013 Outer Temperature ) 2) Remove the left cover. (Refer to 3.3.4 Temperature Sensor) Measure the resistance value of the connector at both ends. If the value is not in 47.5KOhm - 52.5KOhm(at 25C), replace the sensor(JC93-00486A) 3) If the harness and sensor are normal, replace the main board (JC92-02429A).

• Code: C1-2110
• Display: Prepare new yellow toner cartridge.
• Description: Yellow toner is almost empty.
• Remedy: 1) Order new yellow toner cartridge because toner cartridge with level of “Low” will be exhausted soon.