Samsung SLX7400LX model and fix error codes list

– Compatible Printer model: Samsung SLX7400LX
– Samsung SLX7400LX Error Codes with quick guides:

Code: 11-2T01, 11-2T11
Description: 11-2T01 Load tray with [Letter], [Plain] paper
11-2T11 Load tray 1 with [Letter], [Plain] paper
Causes: Paper in tray is not matched to the machine paper setting.
Troubleshooting Guides: 1) Check and change the paper setting of the corresponding tray properly.

Code: 11-2T21, 11-2T31
Description: 11-2T21 Load tray 2 with [Letter], [Plain] paper
11-2T31 Load tray 3 with [Letter], [Plain] paper
Causes: Paper in tray is not matched to the machine paper setting.
Troubleshooting Guides: 1) Check and change the paper setting of the corresponding tray properly.

Code: 11-2T41, 11-2T51, 11-2T61
Description: 11-2T41 Load tray 4 with [Letter], [Plain] paper11-2T51 Load tray 5 with [Letter], [Plain] paper
11-2T61 Load MP with [Letter], [Plain] paper
Causes: Paper in tray is not matched to the machine paper setting.
Troubleshooting Guides: 1) Check and change the paper setting of the corresponding tray properly.

Code: 61-1111
Description: Booting Failure: #61-1111. Turn off then on. Call for service if the problem persists
Causes: Hibernation image creation is failed.
Troubleshooting Guides: 1) Turn the machine on with a normal booting.
2) Enter the SVC mode. Select “Hibernation On” again.

Code: 61-1Y70
Description: Scanner Failure: #61-1Y70. Turn off then on. Call for service if the problem persists
Causes: Shading data is broken due to HDD/SD replacement or system format.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the error persists, enter the SVC mode.
3) Execute the shading test.

Code: 61-C401
Description: Job is completed with error: DNS Error
Causes: Scan to Email Job or Scan to Server Job is failed because of DNS server error.
Troubleshooting Guides: 1) Connect to the SyncThru Web Service as administrator.
2) Check domain name. (Network > Interface > Ethernet > TCP/IP > Domain name)
3) Check DNS server address.
4) Retry the job.

Code: A1-1111, A1-1113
Description: Motor Failure: #A1-1111. Turn off then on. Call for service if the problem persists.
Motor Failure: #A1-1113. Turn off then on. Call for service if the problem persists.
Causes: Feed/MP motor operation is abnormal.
Troubleshooting Guides: • A1–1111 : Feed/MP motor is stopped but machine recognizes it as operational. • A1–1113 : Feed/MP motor is operating but machine recognizes status as ‘Stopped’.
1) Turn the machine off then on. If the error persists, check the following. 2) Open the side cover. Check if there are any foreign substances or paper around Feed/MP unit. 3) Remove the rear cover. 4) Check the connection between the motor and main board. 5) If the connection is OK, enter SVC mode. Execute the motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the motor signal(3.3V). If the signal is abnormal, replace the main board. ii) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. iii) If the motor signal and power is normal, replace the Feed/MP motor. b) If the motor is operational, replace the main board.

Code: A1-1211, A1-1213
Description: Motor Failure: #A1-1211. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-1213. Turn off then on. Call for service if the problem persists
Causes: Fuser/Exit motor operation is abnormal.
Troubleshooting Guides: • A1–1211 : Fuser/Exit motor is stopped but machine recognizes it as operational. • A1–1213 : Fuser/Exit motor is operating but recognizes status as ‘Stopped’.
1) Turn the machine off then on. If the error persists, check the following.
2) Open the side cover. Check if there are any foreign substances or paper around fuser unit.
3) Remove the rear cover.
4) Check the connection between the motor and main board.
5) If the connection is OK, enter SVC mode. Execute the motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the motor signal(3.3V). If the signal is abnormal, replace the main board. ii) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. iii) If the motor signal and power is normal, replace the Fuser/Exit motor. b) If the motor is operational, replace the main board.

Code: A1-1611, A1-1612, A1-1613
Description: Motor Failure: #A1-1611. Turn off then on. Call for service if the problem persists.
Motor Failure: #A1-1612. Turn off then on. Call for service if the problem persists.
Motor Failure: #A1-1613. Turn off then on. Call for service if the problem persists.
Causes: ITB motor operation is abnormal.
Troubleshooting Guides: • A1–1611 : ITB motor is stopped but machine recognizes it as operational. • A1–1612 : ITB motor is not operated for print-job. • A1–1613 : ITB motor is operating but machine recognizes status as ‘Stopped’.
1) Turn the machine off then on. If the error persists, check the following.
2) Remove the ITB cleaner and ITB Unit. Check if there are any foreign substances in ITB unit.
3) Remove the rear cover.
4) Check the connection between the motor and main board.
5) If the connection is OK, enter SVC mode. Execute the motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the motor signal(3.3V). If the signal is abnormal, replace the main board. ii) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. iii) If the motor signal and power is normal, replace the ITB motor. b) If the motor is operational, replace the main board.

Code: A1-2211, A1-2212, A1-2213
Description: Motor Failure: #A1-2211. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-2212. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-2213. Turn off then on. Call for service if the problem persists
Causes: Yellow OPC motor operation is abnormal.
Troubleshooting Guides: • A1–2211 : Yellow OPC motor is stopped but machine recognizes it as operational. • A1–2212 : Yellow OPC motor is not operated for print-job. • A1–2213 : Yellow OPC motor is operating but machine recognizes status as ‘Stopped’.
1) Turn the machine off then on. If the error persists, check the following.
2) Remove the yellow drum unit. Check if there are any foreign substances in yellow drum unit.
3) Remove the rear cover.
4) Check the connection between the yellow OPC motor and main board.
5) If the connection is OK, enter SVC mode. Execute the motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the motor signal(3.3V). If the signal is abnormal, replace the main board. ii) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. iii) If the motor signal and power is normal, replace the yellow OPC motor. b) If the motor is operational, replace the main board.

Code: A1-2311, A1-2312, A1-2313
Description: Motor Failure: #A1-2311. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-2312. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-2313. Turn off then on. Call for service if the problem persists
Causes: Magenta OPC motor operation is abnormal.
Troubleshooting Guides: • A1–2311 : Magenta OPC motor is stopped but machine recognizes it as operational. • A1–2312 : Magenta OPC motor is not operated for print-job. • A1–2313 : Magenta OPC motor is operating but machine recognizes status as ‘Stopped’.
1) Turn the machine off then on. If the error persists, check the following.
2) Remove the magenta drum unit. Check if there are any foreign substances in magenta drum unit.
3) Remove the rear cover.
4) Check the connection between the magenta OPC motor and main board.
5) If the connection is OK, enter SVC mode. Execute the motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the motor signal(3.3V). If the signal is abnormal, replace the main board. ii) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. iii) If the motor signal and power is normal, replace the magenta OPC motor. b) If the motor is operational, replace the main board.

Code: A1-2411, A1-2412, A1-2413
Description: Motor Failure: #A1-2411. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-2412. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-2413. Turn off then on. Call for service if the problem persists
Causes: Cyan OPC motor operation is abnormal.
Troubleshooting Guides: • A1–2411 : Cyan OPC motor is stopped but machine recognizes it as operational. • A1–2412 : Cyan OPC motor is not operated for print-job. • A1–2413 : Cyan OPC motor is operating but machine recognizes status as ‘Stopped’.
1) Turn the machine off then on. If the error persists, check the following.
2) Remove the cyan drum unit. Check if there are any foreign substances in cyan drum unit.
3) Remove the rear cover.
4) Check the connection between the cyan OPC motor and main board.
5) If the connection is OK, enter SVC mode. Execute the motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the motor signal(3.3V). If the signal is abnormal, replace the main board. ii) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. iii) If the motor signal and power is normal, replace the cyan OPC motor. b) If the motor is operational, replace the main board.

Samsung SLX7400LX error code and quick guides

Solve Samsung SLX7400LX Error codes

Code: A1-2511, A1-2512, A1-2513
Description: Motor Failure: #A1-2511. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-2512. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-2513. Turn off then on. Call for service if the problem persists
Causes: Black OPC motor operation is abnormal.
Troubleshooting Guides: • A1–2511 : Black OPC motor is stopped but machine recognizes it as operational. • A1–2512 : Black OPC motor is not operated for print-job. • A1–2513 : Black OPC motor is operating but machine recognizes status as ‘Stopped’.
1) Turn the machine off then on. If the error persists, check the following.
2) Remove the black drum unit. Check if there are any foreign substances in black drum unit.
3) Remove the rear cover.
4) Check the connection between the black OPC motor and main board.
5) If the connection is OK, enter SVC mode. Execute the motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the motor signal(3.3V). If the signal is abnormal, replace the main board. ii) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. iii) If the motor signal and power is normal, replace the black OPC motor. b) If the motor is operational, replace the main board.

Code: A1-4310
Description: Motor Failure: #A1-4310. Turn off then on. Call for service if the problem persists
Causes: T1 engage motor operation is abnormal.
Troubleshooting Guides: 1) Turn the machine off then on. If the problem persists, check the followings.
2) Enter SVC mode. Execute the T1 engage motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the T1 engage motor connection. ii) Check the motor resistance. If the measured value is out of the standard area (7~10 ohm), replace the T1 engage motor. iii) If the motor is normal, replace the main board. b) If the motor is operational, i) Open the side cover. Check if the ITB connector is connected correctly or is deformed. ii) Remove the ITB cleaner and ITB unit. Check the photo sensor in ITB unit. iii) Check the engage gear. If it is not operational, replace the main drive unit.

Code: A1-5212, A1-5213
Description: Motor Failure: #A1-5212. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-5213. Turn off then on. Call for service if the problem persists
Causes: Yellow toner is not supplied normally.
Troubleshooting Guides: • A1–5212 : Toner supply is stopped during operation. • A1–5213 : Toner is not supplied.
1) Turn the machine off then on. If the problem persists, check the followings
2) Open the front cover. If the yellow toner pipe is blocked, open it.
3) Enter SVC mode. Execute the yellow toner supply motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. ii) If the SMPS board is normal, replace the main board. iii) If the error persists after replacing the main board, replace the yellow toner supply motor. b) If the motor is operational, i) Check the toner cartridge remains. If necessary, replace the yellow toner cartridge. ii) If the toner cartridge remains is enough, replace the yellow drum unit.

Code: A1-5312, A1-5313
Description: Motor Failure: #A1-5312. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-5313. Turn off then on. Call for service if the problem persists
Causes: Magenta toner is not supplied normally.
Troubleshooting Guides: • A1–5312 : Toner supply is stopped during operation. • A1–5313 : Toner is not supplied.
1) Turn the machine off then on. If the problem persists, check the followings
2) Open the front cover. If the magenta toner pipe is blocked, open it.
3) Enter SVC mode. Execute the magenta toner supply motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. ii) If the SMPS board is normal, replace the main board. iii) If the error persists after replacing the main board, replace the magenta toner supply motor. b) If the motor is operational, i) Check the toner cartridge remains. If necessary, replace the magenta toner cartridge. ii) If the toner cartridge remains is enough, replace the magenta drum unit.

Code: A1-5412, A1-5413
Description: Motor Failure: #A1-5412. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-5413. Turn off then on. Call for service if the problem persists
Causes: Cyan toner is not supplied normally.
Troubleshooting Guides: • A1–5412 : Toner supply is stopped during operation. • A1–5413 : Toner is not supplied.
1) Turn the machine off then on. If the problem persists, check the followings
2) Open the front cover. If the cyan toner pipe is blocked, open it.
3) Enter SVC mode. Execute the cyan toner supply motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. ii) If the SMPS board is normal, replace the main board. iii) If the error persists after replacing the main board, replace the cyan toner supply motor. b) If the motor is operational, i) Check the toner cartridge remains. If necessary, replace the cyan toner cartridge. ii) If the toner cartridge remains is enough, replace the cyan drum unit.

Code: A1-5512 A1-5513
Description: Motor Failure: #A1-5512. Turn off then on. Call for service if the problem persists
Motor Failure: #A1-5513. Turn off then on. Call for service if the problem persists
Causes: Black toner is not supplied normally.
Troubleshooting Guides: • A1–5512 : Toner supply is stopped during operation. • A1–5513 : Toner is not supplied.
1) Turn the machine off then on. If the problem persists, check the followings
2) Open the front cover. If the black toner pipe is blocked, open it.
3) Enter SVC mode. Execute the black toner supply motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the motor is not operational, i) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it. ii) If the SMPS board is normal, replace the main board. iii) If the error persists after replacing the main board, replace the black toner supply motor. b) If the motor is operational, i) Check the toner cartridge remains. If necessary, replace the black toner cartridge. ii) If the toner cartridge remains is enough, replace the black drum unit.

Code: A2-1221, A2-1223, A2-1521
Description: SMPS Fan Failure: #A2-122x. Open the door, then close it. Call for service if the problem persists
Duplex Fan Failure: #A2-152x. Open the door, then close it. Call for service if the problem persists
Exit Fan Failure: #A2-17xx. Open the door, then close it. Call for service if the problem persists
Fuser Fan Failure: #A2-232x. Open the door, then close it. Call for service if the problem persists
LSU Fan Failure: #A2-242x. Open the door, then close it. Call for service if the problem persists
OPC Fan Failure: #A2-292x. Open the door, then close it. Call for service if the problem persists
Causes: SMPS / Duplex / Exit / Fuser / LSU / OPC fan operation is abnormal.
• SMPS fan error : A2–1221 / A2–1223 • Duplex fan error : A2–1521 / A2–1523 • Exit 1 fan error : A2–1721 / A2–1723 • Exit 2 fan error : A2–1741 / A2–1743 • Exit 3 fan error : A2–1761 / A2–1763 • Exit 4 fan error : A2–1781 / A2–1783 • Fuser out fan error : A2–2321 / A2–2323 • LSU fan error : A2–2421 / A2–2423 • OPC in fan error : A2–2920 / A2–2921
Troubleshooting Guides: 1) Turn the machine off then on. If the problem persists, check the followings.
2) Check the connection of the corresponding fan and main board.
3) If the connection is OK, enter SVC mode. Execute the fan test.
(Diagnostics > Engine Diagnostics > Engine Test Routines)
a) If the fan is not operational,
i) Check the power(24V).
• If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it.
• If the SMPS board is normal, replace the corresponding fan.
• If the error persists after replacing the fan, replace the main board.
b) If the fan is operational,
i) Check the fan signal (3.3V) as connected or disconnected. • If the fan signal as disconnected is abnormal, replace the main board. • If the fan signal as connected is abnormal, replace the corresponding fan.

Code: A2-1523, A2-1721, A2-1723
Description: SMPS Fan Failure: #A2-122x. Open the door, then close it. Call for service if the problem persists
Duplex Fan Failure: #A2-152x. Open the door, then close it. Call for service if the problem persists
Exit Fan Failure: #A2-17xx. Open the door, then close it. Call for service if the problem persists
Fuser Fan Failure: #A2-232x. Open the door, then close it. Call for service if the problem persists
LSU Fan Failure: #A2-242x. Open the door, then close it. Call for service if the problem persists
OPC Fan Failure: #A2-292x. Open the door, then close it. Call for service if the problem persists
Causes: SMPS / Duplex / Exit / Fuser / LSU / OPC fan operation is abnormal.
• SMPS fan error : A2–1221 / A2–1223 • Duplex fan error : A2–1521 / A2–1523 • Exit 1 fan error : A2–1721 / A2–1723 • Exit 2 fan error : A2–1741 / A2–1743 • Exit 3 fan error : A2–1761 / A2–1763 • Exit 4 fan error : A2–1781 / A2–1783 • Fuser out fan error : A2–2321 / A2–2323 • LSU fan error : A2–2421 / A2–2423 • OPC in fan error : A2–2920 / A2–2921
Troubleshooting Guides: 1) Turn the machine off then on. If the problem persists, check the followings.
2) Check the connection of the corresponding fan and main board.
3) If the connection is OK, enter SVC mode. Execute the fan test.
(Diagnostics > Engine Diagnostics > Engine Test Routines)
a) If the fan is not operational,
i) Check the power(24V).
• If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it.
• If the SMPS board is normal, replace the corresponding fan.
• If the error persists after replacing the fan, replace the main board.
b) If the fan is operational,
i) Check the fan signal (3.3V) as connected or disconnected. • If the fan signal as disconnected is abnormal, replace the main board. • If the fan signal as connected is abnormal, replace the corresponding fan.

Code: A2-1741, A2-1743, A2-1761
Description: SMPS Fan Failure: #A2-122x. Open the door, then close it. Call for service if the problem persists
Duplex Fan Failure: #A2-152x. Open the door, then close it. Call for service if the problem persists
Exit Fan Failure: #A2-17xx. Open the door, then close it. Call for service if the problem persists
Fuser Fan Failure: #A2-232x. Open the door, then close it. Call for service if the problem persists
LSU Fan Failure: #A2-242x. Open the door, then close it. Call for service if the problem persists
OPC Fan Failure: #A2-292x. Open the door, then close it. Call for service if the problem persists
Causes: SMPS / Duplex / Exit / Fuser / LSU / OPC fan operation is abnormal.
• SMPS fan error : A2–1221 / A2–1223 • Duplex fan error : A2–1521 / A2–1523 • Exit 1 fan error : A2–1721 / A2–1723 • Exit 2 fan error : A2–1741 / A2–1743 • Exit 3 fan error : A2–1761 / A2–1763 • Exit 4 fan error : A2–1781 / A2–1783 • Fuser out fan error : A2–2321 / A2–2323 • LSU fan error : A2–2421 / A2–2423 • OPC in fan error : A2–2920 / A2–2921
Troubleshooting Guides: 1) Turn the machine off then on. If the problem persists, check the followings.
2) Check the connection of the corresponding fan and main board.
3) If the connection is OK, enter SVC mode. Execute the fan test.
(Diagnostics > Engine Diagnostics > Engine Test Routines)
a) If the fan is not operational,
i) Check the power(24V).
• If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it.
• If the SMPS board is normal, replace the corresponding fan.
• If the error persists after replacing the fan, replace the main board.
b) If the fan is operational,
i) Check the fan signal (3.3V) as connected or disconnected. • If the fan signal as disconnected is abnormal, replace the main board. • If the fan signal as connected is abnormal, replace the corresponding fan.

Code: A2-1763, A2-1781, A2-1783
Description: SMPS Fan Failure: #A2-122x. Open the door, then close it. Call for service if the problem persists
Duplex Fan Failure: #A2-152x. Open the door, then close it. Call for service if the problem persists
Exit Fan Failure: #A2-17xx. Open the door, then close it. Call for service if the problem persists
Fuser Fan Failure: #A2-232x. Open the door, then close it. Call for service if the problem persists
LSU Fan Failure: #A2-242x. Open the door, then close it. Call for service if the problem persists
OPC Fan Failure: #A2-292x. Open the door, then close it. Call for service if the problem persists
Causes: SMPS / Duplex / Exit / Fuser / LSU / OPC fan operation is abnormal.
• SMPS fan error : A2–1221 / A2–1223 • Duplex fan error : A2–1521 / A2–1523 • Exit 1 fan error : A2–1721 / A2–1723 • Exit 2 fan error : A2–1741 / A2–1743 • Exit 3 fan error : A2–1761 / A2–1763 • Exit 4 fan error : A2–1781 / A2–1783 • Fuser out fan error : A2–2321 / A2–2323 • LSU fan error : A2–2421 / A2–2423 • OPC in fan error : A2–2920 / A2–2921
Troubleshooting Guides: 1) Turn the machine off then on. If the problem persists, check the followings.
2) Check the connection of the corresponding fan and main board.
3) If the connection is OK, enter SVC mode. Execute the fan test.
(Diagnostics > Engine Diagnostics > Engine Test Routines)
a) If the fan is not operational,
i) Check the power(24V).
• If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it.
• If the SMPS board is normal, replace the corresponding fan.
• If the error persists after replacing the fan, replace the main board.
b) If the fan is operational,
i) Check the fan signal (3.3V) as connected or disconnected. • If the fan signal as disconnected is abnormal, replace the main board. • If the fan signal as connected is abnormal, replace the corresponding fan.

Code: A2-2321, A2-2323, A2-2421
Description: SMPS Fan Failure: #A2-122x. Open the door, then close it. Call for service if the problem persists
Duplex Fan Failure: #A2-152x. Open the door, then close it. Call for service if the problem persists
Exit Fan Failure: #A2-17xx. Open the door, then close it. Call for service if the problem persists
Fuser Fan Failure: #A2-232x. Open the door, then close it. Call for service if the problem persists
LSU Fan Failure: #A2-242x. Open the door, then close it. Call for service if the problem persists
OPC Fan Failure: #A2-292x. Open the door, then close it. Call for service if the problem persists
Causes: SMPS / Duplex / Exit / Fuser / LSU / OPC fan operation is abnormal.
• SMPS fan error : A2–1221 / A2–1223 • Duplex fan error : A2–1521 / A2–1523 • Exit 1 fan error : A2–1721 / A2–1723 • Exit 2 fan error : A2–1741 / A2–1743 • Exit 3 fan error : A2–1761 / A2–1763 • Exit 4 fan error : A2–1781 / A2–1783 • Fuser out fan error : A2–2321 / A2–2323 • LSU fan error : A2–2421 / A2–2423 • OPC in fan error : A2–2920 / A2–2921
Troubleshooting Guides: 1) Turn the machine off then on. If the problem persists, check the followings.
2) Check the connection of the corresponding fan and main board.
3) If the connection is OK, enter SVC mode. Execute the fan test.
(Diagnostics > Engine Diagnostics > Engine Test Routines)
a) If the fan is not operational,
i) Check the power(24V).
• If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it.
• If the SMPS board is normal, replace the corresponding fan.
• If the error persists after replacing the fan, replace the main board.
b) If the fan is operational,
i) Check the fan signal (3.3V) as connected or disconnected. • If the fan signal as disconnected is abnormal, replace the main board. • If the fan signal as connected is abnormal, replace the corresponding fan.

Code: A2-2423, A2-2920, A2-2921
Description: SMPS Fan Failure: #A2-122x. Open the door, then close it. Call for service if the problem persists
Duplex Fan Failure: #A2-152x. Open the door, then close it. Call for service if the problem persists
Exit Fan Failure: #A2-17xx. Open the door, then close it. Call for service if the problem persists
Fuser Fan Failure: #A2-232x. Open the door, then close it. Call for service if the problem persists
LSU Fan Failure: #A2-242x. Open the door, then close it. Call for service if the problem persists
OPC Fan Failure: #A2-292x. Open the door, then close it. Call for service if the problem persists
Causes: SMPS / Duplex / Exit / Fuser / LSU / OPC fan operation is abnormal.
• SMPS fan error : A2–1221 / A2–1223 • Duplex fan error : A2–1521 / A2–1523 • Exit 1 fan error : A2–1721 / A2–1723 • Exit 2 fan error : A2–1741 / A2–1743 • Exit 3 fan error : A2–1761 / A2–1763 • Exit 4 fan error : A2–1781 / A2–1783 • Fuser out fan error : A2–2321 / A2–2323 • LSU fan error : A2–2421 / A2–2423 • OPC in fan error : A2–2920 / A2–2921
Troubleshooting Guides: 1) Turn the machine off then on. If the problem persists, check the followings.
2) Check the connection of the corresponding fan and main board.
3) If the connection is OK, enter SVC mode. Execute the fan test.
(Diagnostics > Engine Diagnostics > Engine Test Routines)
a) If the fan is not operational,
i) Check the power(24V).
• If the power is abnormal, check the SMPS board. If the SMPS board is defective, replace it.
• If the SMPS board is normal, replace the corresponding fan.
• If the error persists after replacing the fan, replace the main board.
b) If the fan is operational,
i) Check the fan signal (3.3V) as connected or disconnected. • If the fan signal as disconnected is abnormal, replace the main board. • If the fan signal as connected is abnormal, replace the corresponding fan.

Code: A3-2113, A3-4114
Description: The CTD/ACR sensor is dirty. Please clean it with soft cloth or paper.
Causes: CTD/ACR sensor window is contaminated.
Troubleshooting Guides: If the pop up window for cleaning is displayed, follow it.
1) Open the side cover.
2) Clean the sensor window 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
Description: Sensor Failure: #A3-3111. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3112. Turn off then on. Call for service if the problem persists
Causes: The NC sensor in the fuser unit is defective. / The sensor signal is abnormal due to a defective harness.
Troubleshooting Guides: • 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) Turn the machine off then on. If the problem persists, check the followings.
2) Enter SVC mode. Execute the fuser temperature test (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the temperature test is failed, replace the fuser unit. b) If the temperature test is normal, replace the main board.

Code: A3-3113, A3-3114
Description: Sensor Failure: #A3-3113. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3114. Turn off then on. Call for service if the problem persists
Causes: The NC sensor in the fuser unit is defective. / The sensor signal is abnormal due to a defective harness.
Troubleshooting Guides: • 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) Turn the machine off then on. If the problem persists, check the followings.
2) Enter SVC mode. Execute the fuser temperature test (Diagnostics > Engine Diagnostics > Engine Test Routines) a) If the temperature test is failed, replace the fuser unit. b) If the temperature test is normal, replace the main board.

Code: A3-3210, A3-3211, A3-3212
Description: Sensor Failure: #A3-3210. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3211. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3212. Turn off then on. Call for service if the problem persists
Causes: Inner temperature sensor is defective.
Troubleshooting Guides: • 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) Turn the machine off then on.
2) Check the connection between the inner temp sensor and main board. If the connection is OK, replace the inner temp sensor .
3) If the sensor is normal, replace the main board.

Code: A3-3310, A3-3311, A3-3312
Description: Sensor Failure: #A3-3310. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3311. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3312. Turn off then on. Call for service if the problem persists
Causes: Outer temperature/humidity sensor is defective.
Troubleshooting Guides: • A3–3310 / A3–3311 / A3–3312 : Temperature function is abnormal. • A3–3410 / A3–3411 / A3–3412 : Humidity function is abnormal.
1) Turn the machine off then on.
2) Check the connection between the outer temp sensor and main board. If the connection is OK, replace the outer temp sensor .
3) If the sensor is normal, replace the main board.

Code: A3-3410, A3-3411, A3-3412
Description: Sensor Failure: #A3-3410. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3411. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3412. Turn off then on. Call for service if the problem persists
Causes: Outer temperature/humidity sensor is defective.
Troubleshooting Guides: • A3–3310 / A3–3311 / A3–3312 : Temperature function is abnormal. • A3–3410 / A3–3411 / A3–3412 : Humidity function is abnormal.
1) Turn the machine off then on.
2) Check the connection between the outer temp sensor and main board. If the connection is OK, replace the outer temp sensor .
3) If the sensor is normal, replace the main board.

Code: C1-2110, C1-211A
Description: Prepare new yellow toner cartridge.
Causes: Yellow toner is almost empty.
Troubleshooting Guides: 1) Order new yellow toner cartridge because toner cartridge with level of “Low” will be exhausted soon.

Code: C1-2120, C1-2130, C1-2140
Description: Replace with new yellow toner cartridge
End of life, Replace with new yellow toner cartridge
Causes: The yellow toner cartridge is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the yellow toner cartridge.
3) Install the new yellow toner cartridge.
4) Close the front cover.

Code: C1-2311, C1-2313, C1-2314
Description: Yellow Toner Cartridge Failure: #C1-231x. Install yellow toner cartridge again
Causes: Yellow toner supply is inefficient or abnormal.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the yellow toner cartridge. Stand the toner cartridge vertically and tap its top section to distribute the toner evenly inside the cartridge. And turn over the toner cartridge and tap the top in the same way.
3) Shake the toner cartridge horizontally to distribute the toner evenly inside the cartridge.
4) Close the front cover.
5) Check if the toner supply pipe is blocked. Replace the reservoir Unit.
6) Check the toner supply motor operation. Reconnect the harness. If the motor is broken, replace it.

Code: C1-2411, C1-2413
Description: Yellow toner cartridge is not installed. Install it.
Shake yellow toner cartridge.
Causes: The yellow toner cartridge is not installed. / The CRUM data is not detected.
Troubleshooting Guides: 1) Open the front cover. Check if the yellow toner cartridge is installed.
2) Remove and reinstall the yellow toner cartridge.
3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed.
4) Replace the yellow toner cartridge with a new one.

Code: C1-2510, C1-2512
Description: Yellow toner cartridge is not compatible. Check users guide.
Causes: Yellow toner cartridge is not compatible.
Troubleshooting Guides: 1) Replace the yellow toner cartridge with a new one.

Code: C1-2711, C1-2712
Description: Yellow toner cartridge is not installed. Install it.
Shake yellow toner cartridge.
Causes: The yellow toner cartridge is not installed. / The CRUM data is not detected.
Troubleshooting Guides: 1) Open the front cover. Check if the yellow toner cartridge is installed.
2) Remove and reinstall the yellow toner cartridge.
3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed.
4) Replace the yellow toner cartridge with a new one.

Code: C1-3110
Description: Prepare new magenta toner cartridge.
Causes: Magenta toner is almost empty.
Troubleshooting Guides: 1) Order new magenta toner cartridge because toner cartridge with level of “Low” will be exhausted soon.

Code: C1-3120, C1-3130, C1-3140
Description: Replace with new magenta toner cartridge End of life, Replace with new magenta toner cartridge
Causes: The magenta toner cartridge is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the magenta toner cartridge.
3) Install the new magenta toner cartridge.
4) Close the front cover.
5) Check if the toner pipe is blocked. Replace it, if necessary.

Code: C1-3150, C1-3160
Description: Replace with new magenta toner cartridge End of life, Replace with new magenta toner cartridge
Causes: The magenta toner cartridge is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the magenta toner cartridge.
3) Install the new magenta toner cartridge.
4) Close the front cover.
5) Check if the toner pipe is blocked. Replace it, if necessary.

Code: C1-3311, C1-3313, C1-3314
Description: Magenta Toner Cartridge Failure: #C1-3311. Install magenta toner cartridge again
Causes: Magenta toner supply is inefficient or abnormal.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the magenta toner cartridge. Stand the toner cartridge vertically and tap its top section to distribute the toner evenly inside the cartridge. And turn over the toner cartridge and tap the top in the same way.
3) Shake the toner cartridge horizontally to distribute the toner evenly inside the cartridge.
4) Close the front cover.
5) Check if the toner supply pipe is blocked. Replace the reservoir Unit.
6) Check the toner supply motor operation. Reconnect the harness. If the motor is broken, replace it.

Code: C1-3411, C1-3413
Description: Magenta toner cartridge is not installed. Install it.
Shake magenta toner cartridge.
Causes: The magenta toner cartridge is not installed. / The CRUM data is not detected.
Troubleshooting Guides: 1) Open the front cover. Check if the magenta toner cartridge is installed.
2) Remove and reinstall the magenta toner cartridge.
3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed.
4) Replace the magenta toner cartridge with a new one.

Code: C1-3512
Description: Magenta toner cartridge is not compatible. Check users guide.
Causes: Magenta toner cartridge is not compatible.
Troubleshooting Guides: 1) Replace the magenta toner cartridge with a new one.

Code: C1-3711, C1-3712
Description: Magenta toner cartridge is not installed. Install it.
Shake magenta toner cartridge.
Causes: The magenta toner cartridge is not installed. / The CRUM data is not detected.
Troubleshooting Guides: 1) Open the front cover. Check if the magenta toner cartridge is installed.
2) Remove and reinstall the magenta toner cartridge.
3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed.
4) Replace the magenta toner cartridge with a new one.

Code: C1-4110, C1-411A
Description: Prepare new cyan toner cartridge.
Causes: Cyan toner is almost empty.
Troubleshooting Guides: 1) Order new cyan toner cartridge because toner cartridge with level of “Low” will be exhausted soon.

Code: C1-4120, C1-4130, C1-4140
Description: Replace with new cyan toner cartridge
End of life, Replace with new cyan toner cartridge
Causes: The cyan toner cartridge is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the cyan toner cartridge.
3) Install the new cyan toner cartridge.
4) Close the front cover.

Code: C1-4150, C1-4160
Description: Replace with new cyan toner cartridge
End of life, Replace with new cyan toner cartridge
Causes: The cyan toner cartridge is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the cyan toner cartridge.
3) Install the new cyan toner cartridge.
4) Close the front cover.

Code: C1-4311, C1-4313, C1-4314
Description: Cyan Toner Cartridge Failure: #C1-431x. Install yellow toner cartridge again
Causes: Cyan toner supply is inefficient or abnormal.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the cyan toner cartridge. Stand the toner cartridge vertically and tap its top section to distribute the toner evenly inside the cartridge. And turn over the toner cartridge and tap the top in the same way.
3) Shake the toner cartridge horizontally to distribute the toner evenly inside the cartridge.
4) Close the front cover.
5) Check if the toner supply pipe is blocked. Replace the reservoir Unit.
6) Check the toner supply motor operation. Reconnect the harness. If the motor is broken, replace it.

Code: C1-4411, C1-4413
Description: Cyan toner cartridge is not installed. Install it.
Shake cyan toner cartridge.
Causes: The cyan toner cartridge is not installed. / The CRUM data is not detected.
Troubleshooting Guides: 1) Open the front cover. Check if the cyan toner cartridge is installed.
2) Remove and reinstall the cyan toner cartridge.
3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed.
4) Replace the cyan toner cartridge with a new one.

Code: C1-4512
Description: Cyan toner cartridge is not compatible. Check users guide.
Causes: Cyan toner cartridge is not compatible.
Troubleshooting Guides: 1) Replace the cyan toner cartridge with a new one.

Code: C1-5110, C1-511A
Description: Prepare new black toner cartridge.
Causes: Black toner is almost empty.
Troubleshooting Guides: 1) Order new black toner cartridge because toner cartridge with level of “Low” will be exhausted soon.

Code: C1-5120, C1-5130, C1-5140
Description: Replace with new black toner cartridge
End of life, Replace with new black toner cartridge
Causes: The black toner cartridge is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the black toner cartridge.
3) Install the new black toner cartridge.
4) Close the front cover.

Code: C1-5150, C1-5160
Description: Replace with new black toner cartridge
End of life, Replace with new black toner cartridge
Causes: The black toner cartridge is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the black toner cartridge.
3) Install the new black toner cartridge.
4) Close the front cover.

Code: C1-5311, C1-5313, C1-5314
Description: Black Toner Cartridge Failure: #C1-5311. Install black toner cartridge again
Causes: Black toner supply is inefficient or abnormal.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the black toner cartridge. Stand the toner cartridge vertically and tap its top section to distribute the toner evenly inside the cartridge. And turn over the toner cartridge and tap the top in the same way.
3) Shake the toner cartridge horizontally to distribute the toner evenly inside the cartridge.
4) Close the front cover.
5) Check if the toner supply pipe is blocked. Replace the reservoir Unit.
6) Check the toner supply motor operation. Reconnect the harness. If the motor is broken, replace it.

Code: C1-5411, C1-5413
Description: Black toner cartridge is not installed. Install it.
Shake black toner cartridge.
Causes: The black toner cartridge is not installed. / The CRUM data is not detected.
Troubleshooting Guides: 1) Open the front cover. Check if the black toner cartridge is installed.
2) Remove and reinstall the black toner cartridge.
3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed.
4) Replace the black toner cartridge with a new one.

Code: C1-5512
Description: Black toner cartridge is not compatible. Check users guide.
Causes: Black toner cartridge is not compatible.
Troubleshooting Guides: 1) Replace the black toner cartridge with a new one.

Code: C3-2110
Description: Prepare new yellow imaging unit
Causes: Yellow drum unit has almost reached the end of its life.
Troubleshooting Guides: 1) Order new yellow drum unit because drum unit with level of “Low” will be exhausted soon.

Code: C3-2130, C3-2140
Description: End of life, Replace with new yellow imaging unit
Causes: Yellow drum unit is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove the yellow drum unit.
4) Install the new yellow drum unit.
5) Clean the LSU window.
6) Install the waste toner container.
7) Close the front cover.

Code: C3-2411
Description: Yellow imaging unit is not installed. Install it.
Causes: The yellow drum unit is not installed.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove and reinstall the yellow drum unit
4) Install the waste toner container.
5) Close the front cover.

Code: C3-2511, C3-2512
Description: Yellow imaging unit is not compatible. Check user’s guide
Causes: Yellow drum unit is not compatible.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove the yellow drum unit. Check if the drum unit is compatible with the machine.
4) If the drum unit is not a samsung genuine, replace it with a new one.

Code: C3-3110
Description: Prepare new magenta imaging unit
Causes: Magenta drum unit has almost reached the end of its life.
Troubleshooting Guides: 1) Order new magenta drum unit because drum unit with level of “Low” will be exhausted soon.

Code: C3-3130, C3-3140
Description: End of life, Replace with new magenta imaging unit
Causes: Magenta drum unit is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove the magenta drum unit.
4) Install the new magenta drum unit.
5) Clean the LSU window.
6) Install the waste toner container.
7) Close the front cover.

Code: C3-3411
Description: Magenta imaging unit is not installed. Install it.
Causes: The magenta drum unit is not installed.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove and reinstall the magenta drum unit.
4) Install the waste toner container.
5) Close the front cover.

Code: C3-3512
Description: Magenta imaging unit is not compatible. Check user’s guide
Causes: Magenta drum unit is not compatible.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove the magenta drum unit. Check if the drum unit is compatible with the machine.
4) If the drum unit is not a samsung genuine, replace it with a new one.

Code: C3-4110
Description: Prepare new cyan imaging unit
Causes: Cyan drum unit has almost reached the end of its life.
Troubleshooting Guides: 1) Order new cyan drum unit because drum unit with level of “Low” will be exhausted soon.

Code: C3-4130, C3-4140
Description: End of life, Replace with new magenta imaging unit
Causes: Cyan drum unit is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove the cyan drum unit.
4) Install the new cyan drum unit.
5) Clean the LSU window.
6) Install the waste toner container.
7) Close the front cover.

Code: C3-4411
Description: Cyan imaging unit is not installed. Install it.
Cyan Imaging Unit Failure: #C3-4414. Install imaging unit again.
Causes: The cyan drum unit is not installed.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove and reinstall the cyan drum unit
4) Install the waste toner container.
5) Close the front cover.

Code: C3-4512
Description: Cyan imaging unit is not compatible. Check user’s guide
Causes: Cyan drum unit is not compatible.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove the cyan drum unit. Check if the drum unit is compatible with the machine.
4) If the drum unit is not a samsung genuine, replace it with a new one.

Code: C3-5110
Description: Prepare new cyan imaging unit
Causes: Black drum unit has almost reached the end of its life.
Troubleshooting Guides: 1) Order new black drum unit because drum unit with level of “Low” will be exhausted soon.

Code: C3-5130, C3-5140
Description: End of life, Replace with new magenta imaging unit
Causes: Black drum unit is at the end of its life.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove the black drum unit.
4) Install the new black drum unit.
5) Clean the LSU window.
6) Install the waste toner container.
7) Close the front cover.

Code: C3-5411
Description: Black imaging unit is not installed. Install it.
Causes: The black drum unit is not installed.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove and reinstall the black drum unit
4) Install the waste toner container.
5) Close the front cover.

Code: C3-5512
Description: Black imaging unit is not compatible. Check user’s guide
Causes: Black drum unit is not compatible.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container.
3) Remove the black drum unit. Check if the drum unit is compatible with the machine.
4) If the drum unit is not a samsung genuine, replace it with a new one.

Code: C5-1110
Description: Prepare new transfer belt unit.
Causes: The life of the ITB Unit expires soon
Troubleshooting Guides: 1) Order new ITB unit.

Code: C5-1120
Description: Replace new transfer belt unit.
Causes: The life of the ITB Unit has expired.
Troubleshooting Guides: 1) Turn the machine off.
2) Remove the ITB cleaner.
3) Remove the ITB Unit.
4) Install new ITB Unit and ITB cleaner.
5) Turn the machine on.
6) Enter SVC mode.
7) Select “TRANSFER” (INFORMATION > Supply Status > Field Replacement Unit > TRANSFER)
8) Select “ITB”. The “RESET” button will be activated. Click “RESET” to clear the ITB count.
9) Exit SVC mode by pushing the home button.

Code: C5-2120
Description: Prepare new transfer belt unit.
Causes: The life of the ITB cleaner has expired.
Troubleshooting Guides: 1) Turn the machine off.
2) Replace the ITB cleaner.
3) Turn the machine on.

Code: C6-1120
Description: Replace with new fuser unit
Causes: The life of the fuser unit has expired.
Troubleshooting Guides: 1) Turn the machine off.
2) Replace the fuser unit.
3) Turn the machine on.

Code: C6-1310
Description: Fuser unit is not installed. Install it.
Causes: The fuser unit is not installed or fuser unit connector is not connected properly.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, turn the machine off again.
3) Open the side cover.
4) Remove and reinstall the fuser unit.
5) Turn the machine on.
6) If the problem persists, replace the fuser unit.

Code: C7-1110
Description: Waste toner container is almost full. Order new one.
Causes: The life of the waste toner container expires soon.
Troubleshooting Guides: 1) Order new waste toner container.

Code: C7-1130
Description: Waste toner container is full. Replace it.
Causes: The life of the waste toner container has expired.
Troubleshooting Guides: 1) Open the front cover.
2) Remove the waste toner container. Install a new waste toner container.
3) Close the front cover.

Code: C7-1311
Description: Waste toner container is not installed. Install it.
Causes: The waste toner container is not installed.
Troubleshooting Guides: 1) Open the front cover.
2) Remove and reinstall the waste toner container.
3) Close the front cover.

Code: C8-2130
Description: Replace with new yellow developer unit
Causes: The life of the yellow developer unit expires has expired.
Troubleshooting Guides: 1) Turn the machine off.
2) Replace the yellow developer unit.
3) Turn the machine on then print the test page.

Code: C8-2210, C8-2310
Description: Yellow Developer Failure: #C8-2210. Turn off then on
Yellow Developer Failure: #C8-2310. Install yellow developer unit again
Causes: The yellow developer unit has a problem with toner supply or sensor calibration.
Troubleshooting Guides: 1) Turn the machine off then on. If the error persists, check the following.
2) Open the front cover. Then, remove the waste toner container.
3) Check if the toner supply pipe is blocked. If it is closed, open it. (Lever is in horizontal position.)
4) Check if deve unit connector(4 pin) is connected correctly. Check if the pin is deformed.
5) Install the waste toner container. Close the front cover.
6) Turn the machine off then on.
7) If the problem persists, remove and reinstall the yellow developer unit.
8) If the problem persists, replace the yellow developer unit.
9) If the problem persists, check the toner supply motor. Check the motor harness connection. If the connection is OK, replace the toner supply motor.
10)If the problem persists, replace the main board.

Code: C8-2313, C8-231G
Description: Yellow Developer Failure: #C8-2313. Turn off then on. Please call for service if the problem persists
Y Development unit Failure: #C8-231G. Turn off then on. Please call for service if the problem persists
Causes: The yellow developer unit has a problem with toner supply or sensor calibration.
Troubleshooting Guides: 1) Turn the machine off then on. If the error persists, check the following.
2) Open the front cover. Then, remove the waste toner container.
3) Check if the toner supply pipe is blocked. If it is closed, open it. (Lever is in horizontal position.)
4) Check if deve unit connector(4 pin) is connected correctly. Check if the pin is deformed.
5) Install the waste toner container. Close the front cover.
6) Turn the machine off then on.
7) If the problem persists, remove and reinstall the yellow developer unit.
8) If the problem persists, replace the yellow developer unit.
9) If the problem persists, check the toner supply motor. Check the motor harness connection. If the connection is OK, replace the toner supply motor.
10)If the problem persists, replace the main board.

Code: C8-3130
Description: Replace with new magenta developer unit
Causes: The life of the magenta developer unit expires has expired.
Troubleshooting Guides: 1) Turn the machine off.
2) Replace the magenta developer unit.
3) Turn the machine on then print the test page.

Code: C8-3210, C8-3310
Description: Magenta Developer Failure: #C8-3210. Turn off then on
Magenta Developer Failure: #C8-3310. Install magenta developer unit again
Causes: The magenta developer unit has a problem with toner supply or sensor calibration.
Troubleshooting Guides: 1) Turn the machine off then on. If the error persists, check the following.
2) Open the front cover. Then, remove the waste toner container.
3) Check if the toner supply pipe is blocked. If it is closed, open it. (Lever is in horizontal position.)
4) Check if deve unit connector(4 pin) is connected correctly. Check if the pin is deformed.
5) Install the waste toner container. Close the front cover.
6) Turn the machine off then on.
7) If the problem persists, remove and reinstall the magenta developer unit.
8) If the problem persists, replace the magenta developer unit.
9) If the problem persists, check the toner supply motor. Check the motor harness connection. If the connection is OK, replace the toner supply motor.
10)If the problem persists, replace the main board.

Code: C8-3313, C8-331G
Description: Magenta Developer Failure: #C8-3313. Turn off then on. Please call for service if the problem persists
M Development unit Failure: #C8-331G. Turn off then on. Please call for service if the problem persists
Causes: The magenta developer unit has a problem with toner supply or sensor calibration.
Troubleshooting Guides: 1) Turn the machine off then on. If the error persists, check the following.
2) Open the front cover. Then, remove the waste toner container.
3) Check if the toner supply pipe is blocked. If it is closed, open it. (Lever is in horizontal position.)
4) Check if deve unit connector(4 pin) is connected correctly. Check if the pin is deformed.
5) Install the waste toner container. Close the front cover.
6) Turn the machine off then on.
7) If the problem persists, remove and reinstall the magenta developer unit.
8) If the problem persists, replace the magenta developer unit.
9) If the problem persists, check the toner supply motor. Check the motor harness connection. If the connection is OK, replace the toner supply motor.
10)If the problem persists, replace the main board.

Code: C8-4130
Description: Replace with new cyan developer unit
Causes: The life of the cyan developer unit expires has expired.
Troubleshooting Guides: 1) Turn the machine off.
2) Replace the cyan developer unit.
3) Turn the machine on then print the test page.

Code: C8-4210, C8-4310
Description: Cyan Developer Failure: #C8-4210. Turn off then on
Cyan Developer Failure: #C8-4310. Install cyan developer unit again
Causes: The cyan developer unit has a problem with toner supply or sensor calibration.
Troubleshooting Guides: 1) Turn the machine off then on. If the error persists, check the following.
2) Open the front cover. Then, remove the waste toner container.
3) Check if the toner supply pipe is blocked. If it is closed, open it. (Lever is in horizontal position.)
4) Check if deve unit connector(4 pin) is connected correctly. Check if the pin is deformed.
5) Install the waste toner container. Close the front cover.
6) Turn the machine off then on.
7) If the problem persists, remove and reinstall the cyan developer unit.
8) If the problem persists, replace the cyan developer unit.
9) If the problem persists, check the toner supply motor. Check the motor harness connection. If the connection is OK, replace the toner supply motor.
10)If the problem persists, replace the main board.

Code: C8-4313, C8-431G
Description: Cyan Developer Failure: #C8-4313. Turn off then on. Please call for service if the problem persists
C Development unit Failure: #C8-431G. Turn off then on. Please call for service if the problem persists
Causes: The cyan developer unit has a problem with toner supply or sensor calibration.
Troubleshooting Guides: 1) Turn the machine off then on. If the error persists, check the following.
2) Open the front cover. Then, remove the waste toner container.
3) Check if the toner supply pipe is blocked. If it is closed, open it. (Lever is in horizontal position.)
4) Check if deve unit connector(4 pin) is connected correctly. Check if the pin is deformed.
5) Install the waste toner container. Close the front cover.
6) Turn the machine off then on.
7) If the problem persists, remove and reinstall the cyan developer unit.
8) If the problem persists, replace the cyan developer unit.
9) If the problem persists, check the toner supply motor. Check the motor harness connection. If the connection is OK, replace the toner supply motor.
10)If the problem persists, replace the main board.

Code: C8-5130
Description: Replace with new black developer unit
Causes: The life of the black developer unit expires has expired.
Troubleshooting Guides: 1) Turn the machine off.
2) Replace the black developer unit.
3) Turn the machine on then print the test page.

Code: C8-5210, C8-5310
Description: Black Developer Failure: #C8-5210. Turn off then on
Black Developer Failure: #C8-5310. Install black developer unit again
Causes: The black developer unit has a problem with toner supply or sensor calibration.
Troubleshooting Guides: 1) Turn the machine off then on. If the error persists, check the following.
2) Open the front cover. Then, remove the waste toner container.
3) Check if the toner supply pipe is blocked. If it is closed, open it. (Lever is in horizontal position.)
4) Check if deve unit connector(4 pin) is connected correctly. Check if the pin is deformed.
5) Install the waste toner container. Close the front cover.
6) Turn the machine off then on.
7) If the problem persists, remove and reinstall the black developer unit.
8) If the problem persists, replace the black developer unit.
9) If the problem persists, check the toner supply motor. Check the motor harness connection. If the connection is OK, replace the toner supply motor.
10)If the problem persists, replace the main board.

Code: C8-5313, C8-531G
Description: Black Developer Failure: #C8-5313. Turn off then on. Please call for service if the problem persists
K Development unit Failure: #C8-531G. Turn off then on. Please call for service if the problem persists
Causes: The black developer unit has a problem with toner supply or sensor calibration.
Troubleshooting Guides: 1) Turn the machine off then on. If the error persists, check the following.
2) Open the front cover. Then, remove the waste toner container.
3) Check if the toner supply pipe is blocked. If it is closed, open it. (Lever is in horizontal position.)
4) Check if deve unit connector(4 pin) is connected correctly. Check if the pin is deformed.
5) Install the waste toner container. Close the front cover.
6) Turn the machine off then on.
7) If the problem persists, remove and reinstall the black developer unit.
8) If the problem persists, replace the black developer unit.
9) If the problem persists, check the toner supply motor. Check the motor harness connection. If the connection is OK, replace the toner supply motor.
10)If the problem persists, replace the main board.

Code: C9-2110
Description: Prepare with new transfer roller.
Causes: The life of the second transfer roller(T2) expires soon.
Troubleshooting Guides: 1) Order the transfer roller Assy.

Code: C9-2110, C9-2120
Description: Replace with new Transfer roller.
Causes: The life of the second transfer roller(T2) expires soon or has expired.
Troubleshooting Guides: 1) Open the side cover.
2) Replace the 2nd transfer roller with a new one.
3) Close the side cover.
4) Enter SVC mode.
5) Select “TRANSFER” (INFORMATION > Supply Status > Field Replacement Unit > TRANSFER)
6) Select “T2 Roller”. The “RESET” button will be activated. Click “RESET” to clear the T2 Roller count.
7) Exit the SVC mode by pushing the home button.

Code: C9-2220
Description: TR Failure: #C9-2220. Install transfer roller again
Causes: The life of the second transfer roller(T2) is not installed.
Troubleshooting Guides: 1) Open the side cover.
2) Remove and reinstall the second transfer roller.
3) Close the side cover.
4) If the problem persists, replace the HVPS board.

Code: H1-1311, H1-1312, H1-1314
Description: Paper jam in Tray 3.
Causes: Paper jam has occurred in tray3. (Pick up unit connection is defective. / Pickup rollers are defective. / pre Feed sensor is defective.)
Troubleshooting Guides: 1) Open the DCF Take Away-Cover. Remove the jammed paper.
2) Remove tray3. Remove the jammed paper. Close the DCF Take Away-Cover and insert tray3.
3) If this jam error occurs frequently, check the rollers below. a) Remove the tray3 and tray4. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller.
4) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the DCF pick up unit1. Check if the pre feed sensor cable is connected correctly. b) Check if the sensor cable on DCF PBA is connected correctly. c) If the connection is OK, replace the pre feed sensor(0604-001490). d) Install the DCF pick up unit1.
5) If the problem persists after checking step 3~4, check the following : a) Remove the DCF pick up unit1. Check if the sensor and actuator are assembled correctly. b) When pushing the pickup lever, check if the pick up rollers are down. c) Replace the DCF pick up unit1(JC93-01087A) or defective part.
6) Check the DCF feed motor. a) Check if the DCF feed motor cable is connected correctly. b) If the connection is OK, replace the DCF feed drive unit(JC93-01135A).
7) Check the DCF pick up motor. a) Check if the DCF pick up motor cable is connected correctly. b) If the connection is OK, replace the DCF pick up drive unit(JC93-01063A).

Code: H1-1313, H1-1413
Description: Paper jam inside of machine
Causes: Paper jam has occurred inside the machine
Troubleshooting Guides: • H1-1313 : (Media Feeding from Tray3) The leading edge of the paper has not reached the Feed 2 sensor within the specified time • H1-1413 : (Media Feeding from Tray4) The leading edge of the paper has not reached the Feed 2 sensor within the specified time
1) Open the side cover. Remove the jammed paper.
2) If jammed paper occurs continually, check the following. a) Enter SVC mode. Execute the feed 2 sensor test. b) Check connection between the feed 2 sensor and main board. c) If the connection is OK, replace the feed 2 sensor. d) If the feed 2 sensor is normal, check the feed motor. e) Execute feed motor test. f) Check if the feed motor cable is connected correctly. g) If the connection is OK, replace the feed/MP drive unit.

Code: H1-1315, H1-1317, H1-1318
Description: Paper jam in Tray 3.
Causes: Paper jam has occurred in tray3. (Pick up unit connection is defective. / Pickup rollers are defective. / pre Feed sensor is defective.)
Troubleshooting Guides: 1) Open the DCF Take Away-Cover. Remove the jammed paper.
2) Remove tray3. Remove the jammed paper. Close the DCF Take Away-Cover and insert tray3.
3) If this jam error occurs frequently, check the rollers below. a) Remove the tray3 and tray4. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller.
4) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the DCF pick up unit1. Check if the pre feed sensor cable is connected correctly. b) Check if the sensor cable on DCF PBA is connected correctly. c) If the connection is OK, replace the pre feed sensor(0604-001490). d) Install the DCF pick up unit1.
5) If the problem persists after checking step 3~4, check the following : a) Remove the DCF pick up unit1. Check if the sensor and actuator are assembled correctly. b) When pushing the pickup lever, check if the pick up rollers are down. c) Replace the DCF pick up unit1(JC93-01087A) or defective part.
6) Check the DCF feed motor. a) Check if the DCF feed motor cable is connected correctly. b) If the connection is OK, replace the DCF feed drive unit(JC93-01135A).
7) Check the DCF pick up motor. a) Check if the DCF pick up motor cable is connected correctly. b) If the connection is OK, replace the DCF pick up drive unit(JC93-01063A).

Code: H1-1322
Description: Tray 3 cassette is pulled out. Insert it properly.
Causes: Tray 3 is pulled out or the auto size sensor connector is not connected or broken.
Troubleshooting Guides: 1) Remove and insert tray3 correctly.
2) If the problem persists, remove tray3 and tray4. Look inside machine.
3) Check if the auto size sensor cable is connected correctly. Unplug and reconnect it.
4) If the connection is OK, replace the auto size sensor(JC32-00013A).
5) If the problem persists, replace the DCF PBA(JC92-02738A).

Code: H1-1351, H1-1352, H1-1354
Description: Paper is low in Tray 3. Load paper.
Paper is empty in Tray 3. Load paper.
Causes: Paper in the tray is less than 10% of specification. / The photo sensor is defective.
Troubleshooting Guides: 1) Remove tray3. Load the paper in tray3.
2) If paper is loaded but error message has not disappeared, check the following. a) Remove the DCF pick up unit1. b) Check if the photo sensor in the DCF pick up unit1 is contaminated. If so, clean it. c) If the photo sensor(0604-001393) is defective, replace it. d) If the actuator(JC66-04399A) is defective, replace it.

Code: H1-1353
Description: Input System Failure #H1-1353 : Pull Tray 3 out and insert it.
Causes: The paper is not fed from tray3.
Troubleshooting Guides: 1) Remove and insert tray3 correctly.
2) Turn the machine off then on.
3) If the problem persists, turn the machine off.
4) Remove the Rear Cover.
5) Check if the connection between the DCF pick up drive unit and DCF PBA is correct.
6) If the connection is OK, replace the pick up drive unit(JC93-01063A).
7) If the problem persists, check the following. a) Remove the DCF pick up unit1. b) Check if the photo sensor in the DCF pick up unit1 is contaminated, clean it. c) If the photo sensor(0604-001393) is defective, replace it.

Code: H1-1411, H1-1412
Description: Paper jam in Tray 4.
Causes: Paper jam has occurred in tray4. (Pick up unit connection is defective. / Pickup rollers are defective. / Pre Feed sensor is defective.)
Troubleshooting Guides: 1) Open the DCF Take Away-Cover. Remove the jammed paper.
2) Remove tray4. Remove the jammed paper. Close the DCF Take Away-Cover and insert tray4.
3) If this jam error occurs frequently, check the rollers below. a) Remove tray3 and tray4. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller.
4) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the DCF pick up unit2. Check if the feed sensor cable is connected correctly. b) Check if the sensor cable on DCF PBA is connected correctly. c) If the connection is OK, replace the pre feed sensor(0604-001490). d) Install the DCF pick up unit2.
5) If the problem persists after checking step 3~4, check the following : a) Remove the DCF pick up unit2. Check if the sensor and actuator are assembled correctly. b) When pushing the pickup lever, check if the pick up rollers are down. c) Replace the DCF pick up unit2(JC93-00513A) or defective part.
6) Check the DCF feed motor. a) Check if the DCF feed motor cable is connected correctly. b) If the connection is OK, replace the DCF feed drive unit(JC93-01135A).
7) Check the DCF pick up motor. a) Check if the DCF pick up motor cable is connected correctly. b) If the connection is OK, replace the DCF pick up drive unit(JC93-01063A).

Code: H1-1417, H1-1418
Description: Paper jam in Tray 4.
Causes: Paper jam has occurred in tray4. (Pick up unit connection is defective. / Pickup rollers are defective. / Pre Feed sensor is defective.)
Troubleshooting Guides: 1) Open the DCF Take Away-Cover. Remove the jammed paper.
2) Remove tray4. Remove the jammed paper. Close the DCF Take Away-Cover and insert tray4.
3) If this jam error occurs frequently, check the rollers below. a) Remove tray3 and tray4. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller.
4) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the DCF pick up unit2. Check if the feed sensor cable is connected correctly. b) Check if the sensor cable on DCF PBA is connected correctly. c) If the connection is OK, replace the pre feed sensor(0604-001490). d) Install the DCF pick up unit2.
5) If the problem persists after checking step 3~4, check the following : a) Remove the DCF pick up unit2. Check if the sensor and actuator are assembled correctly. b) When pushing the pickup lever, check if the pick up rollers are down. c) Replace the DCF pick up unit2(JC93-00513A) or defective part.
6) Check the DCF feed motor. a) Check if the DCF feed motor cable is connected correctly. b) If the connection is OK, replace the DCF feed drive unit(JC93-01135A).
7) Check the DCF pick up motor. a) Check if the DCF pick up motor cable is connected correctly. b) If the connection is OK, replace the DCF pick up drive unit(JC93-01063A).

Code: H1-1422
Description: Tray 4 cassette is pulled out. Insert it properly.
Causes: Tray 4 is pulled out or the auto size sensor connector is not connected or is broken.
Troubleshooting Guides: 1) Remove and insert tray4 correctly.
2) If the problem persists, remove tray3 and tray4. Look inside machine.
3) Check if the auto size sensor cable is connected correctly. Unplug and reconnect it.
4) If the connection is OK, replace the auto size sensor(JC32-00013A).
5) If the problem persists, replace the DCF PBA(JC92-02738A).

Code: H1-1451, H1-1452, H1-1454
Description: Paper is low in Tray 4. Load paper.
Paper is empty in Tray 4. Load paper.
Causes: Paper in tray4 is less than 10%. / The photo sensor is defective.
Troubleshooting Guides: 1) Remove tray4. Load the paper in tray4.
2) If paper is loaded but error message has not disappeared, check the following. a) Remove the DCF pick up unit2. b) Check if the photo sensor in the DCF pick up unit2 is contaminated. If so, clean it. c) If the photo sensor(0604-001393) is defective, replace it. d) If the actuator(JC66-04399A) is defective, replace it.

Code: H1-1453
Description: Input System Failure #H1-1453 : Pull Tray 4 out and insert it.
Causes: The paper is not fed from tray4.
Troubleshooting Guides: 1) Remove and insert tray4 correctly.
2) Turn the machine off then on.
3) If the problem persists, turn the machine off.
4) Remove the Rear Cover.
5) Check if the connection between the DCF pick up drive and DCF PBA is correct.
6) If the connection is OK, replace the pick up drive unit(JC93-00442A).
7) If the problem persists, check the following. a) Remove the DCF pick up unit2. b) Check if the photo sensor in the DCF pick up unit2 is contaminated. If so, clean it. c) If the photo sensor(0604-001393) is defective, replace it.

Code: H1-2311, H1-2312
Description: Paper Jam in tray 3. After open the door & remove paper, Close the door
Causes: Paper jam has occurred in HCF tray. (Pick up unit connection is defective. / Pickup rollers are defective. / pre feed sensor is defective.)
Troubleshooting Guides: 1) Open the HCF Take Away-Cover. Remove the jammed paper.
2) Remove HCF tray. Remove the jammed paper. Close the HCF Take Away-Cover and insert HCF tray.
3) If this jam error occurs frequently, check the rollers below. a) Remove the HCF tray. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller.
4) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the HCF pick up unit. Check if the pre feed sensor cable is connected correctly. b) Check if the sensor cable on HCF PBA is connected correctly. c) If the connection is OK, replace the pre feed sensor(0604-001490). d) Install the HCF pick up unit.
5) If the problem persists after checking step 3~4, check the following : a) Remove the HCF pick up unit. Check if the sensor and actuator are assembled correctly. b) When pushing the pickup lever, check if the pick up rollers are down. c) Replace the HCF pick up unit(JC93-01139A) or defective part.
6) Check the HCF feed motor. a) Check if the HCF feed motor cable is connected correctly. b) If the connection is OK, replace the HCF feed drive unit(JC93-01114A).
7) Check the HCF pick up motor. a) Check if the HCF pick up motor cable is connected correctly. b) If the connection is OK, replace the HCF pick up drive unit(JC93-01115A).

Code: H1-2313
Description: Paper jam inside of machine
Causes: The leading edge of the paper has not reached the Feed 2 sensor within the specified time
Troubleshooting Guides: 1) Open the side cover. Remove the jammed paper.
2) If jammed paper occurs continually, check the following. a) Enter SVC mode. Execute the feed 2 sensor test. b) Check connection between the feed 2 sensor and main board. c) If the connection is OK, replace the feed 2 sensor. d) If the feed 2 sensor is normal, check the feed motor. e) Execute feed motor test. f) Check if the feed motor cable is connected correctly. g) If the connection is OK, replace the feed/MP drive unit.

Code: H1-2317, H1-2318
Description: Paper Jam in tray 3. After open the door & remove paper, Close the door
Causes: Paper jam has occurred in HCF tray. (Pick up unit connection is defective. / Pickup rollers are defective. / pre feed sensor is defective.)
Troubleshooting Guides: 1) Open the HCF Take Away-Cover. Remove the jammed paper.
2) Remove HCF tray. Remove the jammed paper. Close the HCF Take Away-Cover and insert HCF tray.
3) If this jam error occurs frequently, check the rollers below. a) Remove the HCF tray. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller.
4) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the HCF pick up unit. Check if the pre feed sensor cable is connected correctly. b) Check if the sensor cable on HCF PBA is connected correctly. c) If the connection is OK, replace the pre feed sensor(0604-001490). d) Install the HCF pick up unit.
5) If the problem persists after checking step 3~4, check the following : a) Remove the HCF pick up unit. Check if the sensor and actuator are assembled correctly. b) When pushing the pickup lever, check if the pick up rollers are down. c) Replace the HCF pick up unit(JC93-01139A) or defective part.
6) Check the HCF feed motor. a) Check if the HCF feed motor cable is connected correctly. b) If the connection is OK, replace the HCF feed drive unit(JC93-01114A).
7) Check the HCF pick up motor. a) Check if the HCF pick up motor cable is connected correctly. b) If the connection is OK, replace the HCF pick up drive unit(JC93-01115A).

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Code: H1-2320
Description: Tray 3 door is open. Close it.
Causes: HCF Takeaway-Cover is open. / Side door open switch harness or connector is defective.
Troubleshooting Guides: 1) Open and close the HCF Take away-Cover correctly.
2) Check if the side door open switch is connected correctly. Unplug and reconnect it.
3) If the connection is OK, replace the side door open switch(JC39-02279A).
4) If the problem persists, replace the HCF PBA(JC92-02738B).

Code: H1-2322
Description: Tray 3 cassette is pulled out. Insert it properly.
Causes: HCF Tray is pulled out or the Tray insertion sensor connector is not connected or broken.
Troubleshooting Guides: 1) Remove and insert HCF tray correctly.
2) If the problem persists, remove HCF tray. Look inside machine.
3) Check if the tray insertion sensor is connected correctly. Unplug and reconnect it.
4) If the connection is OK, replace the tray insertion sensor(0604–001393).
5) If the problem persists, replace the HCF PBA(JC92-02738B).

Code: H1-2330
Description: Tray Failure: #H1-2330. Check tray 3 connection & turn off then on. Call for service if the problem persists
Causes: A communication error between the optional tray and the main machine has occurred.
Troubleshooting Guides: 1) Turn the machine off.
2) Remove the Rear Cover.
3) Check the connection of HCF PBA. If the interface connector is defective, replace it.
4) If the problem persists, replace the HCF PBA.

Code: H1-2351, H1-2352
Description: Paper is low in Tray 3. Load paper.
Paper is empty in Tray 3. Load paper.
Causes: Paper in the HCF tray is less than 10% of specification. / The photo sensor is defective.
Troubleshooting Guides: 1) Remove HCF tray. Load the paper in HCF tray.
2) If paper is loaded but error message has not disappeared, check the following. a) Remove the HCF pick up unit. b) Check if the photo sensor in the HCF pick up unit is contaminated. If so, clean it. c) If the photo sensor(0604-001393) is defective, replace it. d) If the actuator(JC66-04399A) is defective, replace it.

Code: H1-2353
Description: Tray Failure: #H1-2353. Pull tray 3 out and insert it. Call for service if the problem persists
Causes: The paper is not fed from HCF tray.
Troubleshooting Guides: 1) Remove and insert HCF tray correctly.
2) Turn the machine off then on.
3) If the problem persists, turn the machine off.
4) Remove the Rear Cover.
5) Check if the connection between the HCF pick up drive unit and HCF PBA is correct.
6) If the connection is OK, replace the HCF pick up drive unit(JC93-01115A).
7) If the problem persists, check the following. a) Remove the HCF pick up unit. b) Check if the photo sensor in the HCF pick up unit is contaminated, clean it. c) If the photo sensor(0604-001393) is defective, replace it.

Code: H1-4411, H1-4412, H1-4413
Description: Paper jam in Tray 4.
Paper jam in Tray 5.
Causes: Paper jam has occurred in LCT. (Pick up unit connection is defective. / Pickup rollers are defective. / Feed sensor is defective.)
Troubleshooting Guides: 1) Open the LCT Top Cover. Remove the jammed paper. And, close the LCT Top Cover.
2) If this jam error occurs frequently, check the rollers below. a) Open the LCT Top Cover. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller(JC93–01091A).
3) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the LCT pick up unit. Check if the feed sensor cable is connected correctly. b) Check if the sensor cable on LCT board is connected correctly. c) If the connection is OK, replace the feed sensor(0604-001490). d) Check if the sensor and actuator are assembled correctly. e) Install the LCT pick up unit.
4) Check the LCT feed motor and pick-up motor. a) Check if the LCT feed motor and pick-up motor cables are connected correctly. b) If the connection is OK, replace the LCT feed drive unit(JC93-01112A).

Code: H1-4417, H1-4418
Description: Paper jam in Tray 4.
Paper jam in Tray 5.
Causes: Paper jam has occurred in LCT. (Pick up unit connection is defective. / Pickup rollers are defective. / Feed sensor is defective.)
Troubleshooting Guides: 1) Open the LCT Top Cover. Remove the jammed paper. And, close the LCT Top Cover.
2) If this jam error occurs frequently, check the rollers below. a) Open the LCT Top Cover. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller(JC93–01091A).
3) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the LCT pick up unit. Check if the feed sensor cable is connected correctly. b) Check if the sensor cable on LCT board is connected correctly. c) If the connection is OK, replace the feed sensor(0604-001490). d) Check if the sensor and actuator are assembled correctly. e) Install the LCT pick up unit.
4) Check the LCT feed motor and pick-up motor. a) Check if the LCT feed motor and pick-up motor cables are connected correctly. b) If the connection is OK, replace the LCT feed drive unit(JC93-01112A).

Code: H1-4420, H1-4520
Description: Tray 4 door is open. Close it
Tray 5 door is open. Close it
Causes: LCT Top Cover is open. / I/L-Switch harness or connector is defective.
Troubleshooting Guides: 1) Open and close the LCT Top Cover correctly.
2) If the problem persists, check the following. a) Check if I/L-Switch(Top Door Open Switch)(JC39-02346A) is not operating normally. If it is defective, replace it. b) If the Top Door Open Switch is OK, replace the LCT PBA(JC92-02738C).

Code: H1-4422, H1-4522
Description: Tray 4 cassette is pulled out. Insert it properly.
Tray 5 cassette is pulled out. Insert it properly.
Causes: LCT is pulled out or installation detect sensor is not connected or broken.
Troubleshooting Guides: 1) Detach and Attach the LCT
2) If the problem persists, detach LCT and check inside machine.
3) Remove the Front Cover and Rear Cover. Check the connection of the installation detect sensors. And, unplug and reconnect it.
4) If the connection is OK, replace the installation detect sensor (0604-01393).
5) If the problem persists, replace the LCT PBA (JC92–02738C).

Code: H1-4430, H1-4530
Description: Tray Failure: #H1-4430. Check tray 4 connection
Tray Failure: #H1-4530. Check tray 5 connection
Causes: A communication error between the LCT and the main machine has occurred.
Troubleshooting Guides: 1) Turn the machine off.
2) Remove the LCT Cover-Right and LCT Cover-Rear.
3) Check the connection of LCT PBA. If the interface connector(JC39–02294A) is defective, replace it.
4) If the problem persists, replace the LCT PBA.

Code: H1-4451, H1-4452
Description: Paper is low in Tray 4. Load paper. / Paper is empty in Tray 4. Load paper.
Paper is low in Tray 4. Load paper. / Paper is empty in Tray 4. Load paper.
Causes: Paper in the LCT is less than 20% of specification. / The photo sensor is defective.
Troubleshooting Guides: 1) Open the LCT Top Cover. Load the paper in LCT.
2) If paper is loaded but error message has not disappeared, check the following. a) Remove the LCT pick up unit. b) Check if the photo sensor in the LCT pick up unit1 is contaminated. If so, clean it. c) If the photo sensor(0604-001393) is defective, replace it. d) If the actuator(JC66-04276A) is defective, replace it.

Code: H1-4453, H1-4553
Description: Input System Failure #H1-4453 : Pull Tray 4 out and insert it.
Input System Failure #H1-4553 : Pull Tray 5 out and insert it.
Causes: The paper is not fed from the LCT.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, turn the machine off.
3) Remove the Cover-Right and Cover-Rear after removing 16 screws.
4) Check if the connection between the LCT pick up drive and LCT PBA is correct.
5) If the connection is OK, replace the drive unit(JC93–01112A).
6) If the problem persists, check the following. a) Remove the LCT pick up unit. b) Check if the photo sensor in the LCT pick up unit is contaminated, clean it. c) If the photo sensor(0604-001393) is defective, replace it.

Code: H1-4511, H1-4512, H1-4513
Description: Paper jam in Tray 4.
Paper jam in Tray 5.
Causes: Paper jam has occurred in LCT. (Pick up unit connection is defective. / Pickup rollers are defective. / Feed sensor is defective.)
Troubleshooting Guides: 1) Open the LCT Top Cover. Remove the jammed paper. And, close the LCT Top Cover.
2) If this jam error occurs frequently, check the rollers below. a) Open the LCT Top Cover. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller(JC93–01091A).
3) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the LCT pick up unit. Check if the feed sensor cable is connected correctly. b) Check if the sensor cable on LCT board is connected correctly. c) If the connection is OK, replace the feed sensor(0604-001490). d) Check if the sensor and actuator are assembled correctly. e) Install the LCT pick up unit.
4) Check the LCT feed motor and pick-up motor. a) Check if the LCT feed motor and pick-up motor cables are connected correctly. b) If the connection is OK, replace the LCT feed drive unit(JC93-01112A).

Code: H1-4517, H1-4518
Description: Paper jam in Tray 4.
Paper jam in Tray 5.
Causes: Paper jam has occurred in LCT. (Pick up unit connection is defective. / Pickup rollers are defective. / Feed sensor is defective.)
Troubleshooting Guides: 1) Open the LCT Top Cover. Remove the jammed paper. And, close the LCT Top Cover.
2) If this jam error occurs frequently, check the rollers below. a) Open the LCT Top Cover. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller(JC93–01091A).
3) If pick up/ reverse/ forward rollers have no problem, check the following. a) Remove the LCT pick up unit. Check if the feed sensor cable is connected correctly. b) Check if the sensor cable on LCT board is connected correctly. c) If the connection is OK, replace the feed sensor(0604-001490). d) Check if the sensor and actuator are assembled correctly. e) Install the LCT pick up unit.
4) Check the LCT feed motor and pick-up motor. a) Check if the LCT feed motor and pick-up motor cables are connected correctly. b) If the connection is OK, replace the LCT feed drive unit(JC93-01112A).

Code: H1-4551, H1-4552
Description: Paper is low in Tray 4. Load paper. / Paper is empty in Tray 4. Load paper.
Paper is low in Tray 4. Load paper. / Paper is empty in Tray 4. Load paper.
Causes: Paper in the LCT is less than 20% of specification. / The photo sensor is defective.
Troubleshooting Guides: 1) Open the LCT Top Cover. Load the paper in LCT.
2) If paper is loaded but error message has not disappeared, check the following. a) Remove the LCT pick up unit. b) Check if the photo sensor in the LCT pick up unit1 is contaminated. If so, clean it. c) If the photo sensor(0604-001393) is defective, replace it. d) If the actuator(JC66-04276A) is defective, replace it.

Code: H1-5323
Description: Tray door is open. Close the door
Causes: DCF Takeaway-Cover is open. / I/L-Switch harness or connector is defective.
Troubleshooting Guides: 1) Open and close the DCF Take away-Cover correctly.
2) If the problem persists, check the following. a) Check if I/L-Switch(HARNESS-DCF COVER OPEN)(JC39–02268A) is not operating normally. If it is defective, replace it. b) If the I/L Switch is OK, replace the DCF PBA(JC92–02738A).

Code: H1-5330
Description: DCF Failure #H1-5330. Check internal DCF connection.
Causes: A communication error between the optional tray and the main machine has occurred.
Troubleshooting Guides: 1) Lift up and release the DCF unit from the machine.
2) Remove the Rear Cover.
3) Check if the interface connector is connected to the DCF PBA. If the interface connector(JC39–02276A) is defective, replace it.
4) If the problem persists, replace the DCF PBA.

Code: M1-1113
Description: Paper jam in Tray 1.
Causes: Paper jam has occurred in tray1.
Troubleshooting Guides: 1) Open the side cover and check if a foreign substance or paper is jammed inside the machine.
2) Remove tray1 and remove the jammed paper.
3) If this jam error occurs frequently, check the rollers of the pick up unit1. a) Remove tray1 and tray2. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller.
4) If the problem persists, check the pick-up unit1. a) Check if the pre-feed sensor is connected correctly. If the sensor is defective, replace it. b) If there is any defective part in pick-up unit 1, replace it or pick up unit 1.
5) If the problem persists, replace the pickup drive unit 1.

Code: M1-1211, M1-1213
Description: Paper jam in Tray 2.
Causes: Paper jam has occurred in tray2.
Troubleshooting Guides: 1) Open the side cover and check if a foreign substance or paper is jammed inside the machine.
2) Remove tray2 and remove the jammed paper.
3) If this jam error occurs frequently, check the rollers of the pick up unit2. a) Remove tray1 and tray2. b) Check if the pick up/ reverse/ forward rollers are assembled correctly. c) If the pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller.
4) If the problem persists, check the pick-up unit2. a) Check if the pre-feed sensor is connected correctly. If the sensor is defective, replace it. b) If there is any defective part in pick-up unit 2, replace it or pick up unit 2.
5) If the problem persists, check the followings. a) Enter SVC mode, Execute Feed sensor test. • Check a connected harness between Feed sensor and main board. • If no matter at harness, Please replace Feed sensor. b) If the feed sensor works, check a Pick up/Feed drive unit at SVC mode. i) Check the connected harness at drive unit. ii) If the harness is OK, please replace a drive unit.

Code: M1-1610, M1-1613
Description: Paper jam in MP Tray.
Causes: Paper jam has occurred in MP tray.
Troubleshooting Guides: 1) Open the side cover. Remove the jammed paper from the MP tray.
2) If this jam error occurs frequently, check the rollers of the MP unit. a) Check if MP pick up/ reverse/ forward rollers are assembled correctly. b) If the MP pick up/ reverse/ forward rollers are worn out or contaminated, replace the defective roller.
3) If the problem persists, check if the MP solenoid operates correctly. a) Enter SVC mode. Execute MP solenoid test. b) If the MP solenoid operation is abnormal, check the harness connection of MP unit. c) If the harness has no defects, replace the MP solenoid.
4) If the problem persists, please check the followings. a) Enter SVC mode. Execute the regi sensor test. i) If the Regi sensor doesn’t work, check below. • Check the harness connection between Regi sensor and main board. • If the harness connection is OK, replace the Regi sensor. ii) If the Regi sensor works normally, check the Feed/MP drive unit at SVC mode. • Check the harness connection of the Feed/MP drive unit. • If the harness connection is OK, replace the Feed/MP drive unit.

Code: M1-3122
Description: Tray 1 cassette is pulled out. Insert it properly.
Causes: Tray 1 is pulled out or the auto size sensor connector is not connected or broken.
Troubleshooting Guides: 1) Remove and insert Tray1 correctly.
2) If Tray1 is not locked or pulled out without holding the locking lever, remove Tray1.
3) Check if foreign substance or paper is inside the space between Tray1,2. If so, please remove it.
4) If the problem persists, check that the auto size sensor is connected properly.
5) Check some components are omitted at Cassette unit.
6) If the problem persists, replace the main board or Auto size sensor.

Code: M1-3222
Description: Tray 2 cassette is pulled out. Insert it properly.
Causes: Tray 2 is pulled out or the auto size sensor connector is not connected or broken.
Troubleshooting Guides: 1) Remove and insert Tray2 correctly.
2) If Tray2 is not locked or pulled out without holding the locking lever, remove Tray2.
3) Check if foreign substance or paper is inside the space between Tray1,2. If so, please remove it.
4) If the problem persists, check that the auto size sensor is connected properly.
5) Check some components are omitted at Cassette unit.
6) If the problem persists, replace the main board or Auto size sensor.

Code: M1-4111
Description: Input System Failure #M1–4111 : Pull Tray 1 out and insert it.
Causes: The paper is not fed from tray1.
Troubleshooting Guides: 1) Remove tray1 and re-install it.
2) If the problem persists, turn the machine off then on.
3) Enter SVC mode. Execute pickup motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines)
4) If the pick up motor operation is abnormal, turn the machine off.
5) Remove the rear cover.
6) Check if the connection between pickup drive unit1 and main board is secure.
7) If the connection is OK, replace the pickup drive unit.
8) If the problem persists, check the pickup unit1. a) Check if the photo sensor in the pickup unit1 is defective. b) If the sensor is defective, replace it.

Code: M1-4211
Description: Input System Failure #M1-4211 : Pull Tray 2 out and insert it.
Causes: The paper is not fed from tray2.
Troubleshooting Guides: 1) Remove tray2 and re-install it.
2) If the problem persists, turn the machine off then on.
3) Enter SVC mode. Execute pickup motor test. (Diagnostics > Engine Diagnostics > Engine Test Routines)
4) If the pick up motor operation is abnormal, turn the machine off.
5) Remove the rear cover.
6) Check if the connection between pickup drive unit2 and main board is secure.
7) If the connection is OK, replace the pickup drive unit.
8) If the problem persists, check the pickup unit2. a) Check if the photo sensor in the pickup unit2 is defective. b) If the sensor is defective, replace it.

Code: M1-5111, M1-5112
Description: Paper is low in Tray 1. Load paper.
Paper is empty in Tray 1. Load paper.
Causes: Paper in the tray1 is less than 10%. / The photo sensor is defective.
Troubleshooting Guides: 1) Remove tray 1. Load paper in the tray. And insert tray 1.
2) If paper is loaded but error message has not disappeared, check the following: a) Turn the machine off. Open the Side Cover. b) Remove Pick-Up Unit1. c) If the photo sensor is contaminated, clean it. d) If the photo sensor is defective, replace it. e) If the actuator is defective, replace it.

Code: M1-5113, M1-5120
Description: Paper is low in Tray 1. Load paper.
Paper is empty in Tray 1. Load paper.
Causes: Paper in the tray1 is less than 10%. / The photo sensor is defective.
Troubleshooting Guides: 1) Remove tray 1. Load paper in the tray. And insert tray 1.
2) If paper is loaded but error message has not disappeared, check the following: a) Turn the machine off. Open the Side Cover. b) Remove Pick-Up Unit1. c) If the photo sensor is contaminated, clean it. d) If the photo sensor is defective, replace it. e) If the actuator is defective, replace it.

Code: M1-5211, M1-5212
Description: Paper is low in Tray 2. Load paper.
Paper is empty in Tray 2. Load paper.
Causes: Paper in the tray is less than 10% of specification. / The photo sensor is defective.
Troubleshooting Guides: 1) Remove tray 2. Load paper in the tray, and insert the tray 2.
2) If paper is loaded but error message has not disappeared, check the following : a) Turn the machine off. Open the Side Cover. b) Remove Pick-Up Unit2. c) If the photo sensor is contaminated, clean it. d) If the photo sensor is defective, replace it. e) If the actuator is defective, replace it.

Code: M1-5612
Description: Paper is empty in MP Tray. Load paper.
Causes: Paper in the MP tray is less than 10%. / The photo sensor is defective.
Troubleshooting Guides: 1) Load the paper in the MP tray.
2) If paper is loaded but error message has not disappeared, check the following : a) If the photo sensor is contaminated, clean it. b) If the photo sensor is defective, replace it. c) If the actuator is defective, replace it.

Code: M2-1114, M2-1117
Description: Paper jam inside of machine
Paper jam at the bottom of duplex path
Causes: Paper jam has occurred inside the machine.
Troubleshooting Guides: • M2–1114 : The paper has not left from the feed sensor within the specified time. • M2-1117 : The paper passed duplex path has not reached the feed sensor within the specified time.
1) Open the side cover. Remove the jammed paper.
2) If jammed paper occurs continually, check the following. a) Enter SVC mode. Execute the feed 1 sensor test. b) Check connection between the feed 1 sensor and main board. c) If the connection is OK, replace the feed 1 sensor. d) If the feed 1 sensor is normal, check the feed motor. e) Execute feed motor test. f) Check if the feed motor cable is connected correctly. g) If the connection is OK, replace the feed/MP drive unit.

Code: M2-1211, M2-1213, M2-1214
Description: Paper jam inside of machine.
Causes: Paper jam has occurred inside the machine.
Troubleshooting Guides: • M2–1211 : When the machine is warming-up, jammed paper inside machine is detected. • M2–1213 : The Media was fed has left from the regi. Sensor ahead of specified time. (Paper mismatch) • M2-1214 : The paper has not left from the regi. sensor within the specified time.
1) Open the side cover. Remove the jammed paper.
2) If jammed paper occurs continually, check the following. a) Enter SVC mode. Execute the regi sensor test. b) Check connection between the regi sensor and main board. c) If the connection is OK, replace the regi sensor. d) If the regi sensor is normal, check the regi motor. e) Execute regi motor test. f) Check if the regi motor cable is connected correctly. g) If the connection is OK, replace the regi drive unit.

Code: M2-1331, M2-1332
Description: Paper jam inside of machine
Paper jam at the top of duplex path
Causes: Paper jam has occurred inside the machine.
Troubleshooting Guides: • M2-1331 : Paper is detected by the fuser out JAM sensor. • M2-1332 : Paper has not reached the fuser out JAM sensor within the specified time. • M2-1333 : Paper escaped from Regi sensor has reached to the fuser out JAM sensor faster than the specified time. • M2–1334 : The paper has not left from the fuser out JAM sensor within the specified time.
1) Open the side cover. Remove jammed paper.
2) If the problem persists, check the followings: a) Enter SVC mode, execute the fuser out sensor test. i) If the sensor does not work, check below. • Check the harness connection between fuser out sensor and main board. • If the harness connection is OK, replace the fuser out sensor. ii) If the sensor works normally, check the Regi/OPC/Fuser/Exit drive unit at SVC mode. • Check the harness connection of Regi/OPC/Fuser/Exit drive unit. • If the harness connection is OK, replace the corresponding drive unit. (Regi/OPC drive is applied in case M2–1332)

Code: M2-1333, M2-1334
Description: Paper jam inside of machine
Paper jam at the top of duplex path
Causes: Paper jam has occurred inside the machine.
Troubleshooting Guides: • M2-1331 : Paper is detected by the fuser out JAM sensor. • M2-1332 : Paper has not reached the fuser out JAM sensor within the specified time. • M2-1333 : Paper escaped from Regi sensor has reached to the fuser out JAM sensor faster than the specified time. • M2–1334 : The paper has not left from the fuser out JAM sensor within the specified time.
1) Open the side cover. Remove jammed paper.
2) If the problem persists, check the followings: a) Enter SVC mode, execute the fuser out sensor test. i) If the sensor does not work, check below. • Check the harness connection between fuser out sensor and main board. • If the harness connection is OK, replace the fuser out sensor. ii) If the sensor works normally, check the Regi/OPC/Fuser/Exit drive unit at SVC mode. • Check the harness connection of Regi/OPC/Fuser/Exit drive unit. • If the harness connection is OK, replace the corresponding drive unit. (Regi/OPC drive is applied in case M2–1332)

Code: M2-2111, M2-2112, M2-2113
Description: Paper jam inside of machine
Paper jam at the top of duplex path
Causes: Paper jam has occurred in duplex path.
Troubleshooting Guides: 1) Open the side cover. Remove jammed paper.
2) If the problem persists, check the following: a) Enter SVC mode. Execute the Duplex1/Duplex2 sensor test. i) If the sensor does not work, check the followings. • Check the harness connection between Duplex1/Duplex2 sensor and main board. • If the harness connection is OK, replace the Duplex1/Duplex2 sensor. ii) If the sensor works normally, check the 2nd Exit/Duplex1/Duplex2 drive unit at SVC mode. • Check the harness connection of 2nd Exit/Duplex1/Duplex2 drive unit • If the harness connection is OK, replace the corresponding drive unit.

Code: M2-2114, M2-2311
Description: Paper jam inside of machine
Paper jam at the top of duplex path
Causes: Paper jam has occurred in duplex path.
Troubleshooting Guides: 1) Open the side cover. Remove jammed paper.
2) If the problem persists, check the following: a) Enter SVC mode. Execute the Duplex1/Duplex2 sensor test. i) If the sensor does not work, check the followings. • Check the harness connection between Duplex1/Duplex2 sensor and main board. • If the harness connection is OK, replace the Duplex1/Duplex2 sensor. ii) If the sensor works normally, check the 2nd Exit/Duplex1/Duplex2 drive unit at SVC mode. • Check the harness connection of 2nd Exit/Duplex1/Duplex2 drive unit • If the harness connection is OK, replace the corresponding drive unit.

Code: M2-2312, M2-2314
Description: Paper jam inside of machine
Paper jam at the top of duplex path
Causes: Paper jam has occurred in duplex path.
Troubleshooting Guides: 1) Open the side cover. Remove jammed paper.
2) If the problem persists, check the following: a) Enter SVC mode. Execute the Duplex1/Duplex2 sensor test. i) If the sensor does not work, check the followings. • Check the harness connection between Duplex1/Duplex2 sensor and main board. • If the harness connection is OK, replace the Duplex1/Duplex2 sensor. ii) If the sensor works normally, check the 2nd Exit/Duplex1/Duplex2 drive unit at SVC mode. • Check the harness connection of 2nd Exit/Duplex1/Duplex2 drive unit • If the harness connection is OK, replace the corresponding drive unit.

Code: M3-1411, M3-1412
Description: Paper jam in exit area.
Check whether the pieces of paper remain in the paper path
Causes: Paper jam has occurred around the fuser unit.(Job separator connection is defective. / Actuator-Exit is defective.)
Troubleshooting Guides: 1) Open the side cover. Remove the jammed paper.
2) If the problem persists, check the following: a) Remove the exit unit. b) Check if the return sensor is connected correctly. If the connection is OK, replace the sensor. c) Check if the return sensor actuator is broken or deformed. If necessary, reassemble or replace it. d) Check if the exit gate solenoid connected correctly. If the connection is OK, replace the solenoid. e) If the problem persists, replace the fuser unit.

Code: M3-1413, M3-1414
Description: Paper jam in exit area.
Check whether the pieces of paper remain in the paper path
Causes: Paper jam has occurred around the fuser unit.(Job separator connection is defective. / Actuator-Exit is defective.)
Troubleshooting Guides: 1) Open the side cover. Remove the jammed paper.
2) If the problem persists, check the following: a) Remove the exit unit. b) Check if the return sensor is connected correctly. If the connection is OK, replace the sensor. c) Check if the return sensor actuator is broken or deformed. If necessary, reassemble or replace it. d) Check if the exit gate solenoid connected correctly. If the connection is OK, replace the solenoid. e) If the problem persists, replace the fuser unit.

Code: M3-2230, M3-2430
Description: Output tray is full. Remove printed media.
Causes: There is too much paper in output bin tray or inner tray.
Troubleshooting Guides: • M3-2230 : There is too much paper in output bin tray. • M3-2430 : There is too much paper in inner tray.
1) Remove the paper from output bin tray or inner tray.
2) If this error occurs continually, check the following. a) Check if the bin-full sensor and actuator is assembled correctly. b) Check if the bin-full sensor is defective.

Code: S1-1113
Description: Video System Failure #S1-1113: Turn off then on.
Causes: The system has some problems due to CPU overheating.
Troubleshooting Guides: 1) Turn the machine off.
2) Wait until the machine is cool, and then turn the machine on.
3) If the problem persists, turn the machine off again.
4) Remove the rear cover.
5) Replace the main board. NOTE Insert the MSOK to the new main board.
6) Assemble the rear cover. Turn the machine on.

Code: S1-1313
Description: The clock became initial time. Set a time again.
Causes: Saved time is invalid
Troubleshooting Guides: 1) Set up the time and reboot the machine. a) Select “Machine Setup” on touch screen. b) Select “General Setting”. c) Select “Date and Time” and set the time.
2) If the problem persists, check the following. a) Remove the rear cover. b) Remove the fax holder from the main board. c) Measure the voltage of the battery. If the battery is normal, the measured value is over 3V.
3) If the battery is normal, replace the main board.

Code: S1-1411, S1-1413
Description: Video System Failure: #S1-1411. Turn off then on
Video System Failure: #S1-1413. Turn off then on
Causes: Video chip in main board is defective.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, replace the main board.
NOTE Insert the MSOK to the new main board.

Code: S1-2111
Description: Video System Failure #S1-2111: Turn off then on.
Causes: The machine can’t detect memory during booting.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, turn the machine off again.
3) Remove the rear cover.
4) Replace the main board. NOTE Insert the MSOK to the new main board.
5) Assemble the rear cover. Turn the machine on.

Code: S1-2433, S1-2443, S1-2444
Description: HDD System Failure #S1-24xx: Turn off then on.
Causes: HDD partition is full or corrupted.
Troubleshooting Guides: 1) Enter SVC mode. Select “System Recovery” in Service Function menu.
2) Execute hard disk format and firmware re-installation.
3) If the problem persists, replace the HDD.

Code: S1-2434, S1-2435, S1-2436
Description: HDD Error #S1-243x. Check users guide.
Causes: HDD partition or memory is full.
Troubleshooting Guides: 1) Enter SVC mode. Select “Hard Disk Maintenance” in Service Function menu.
2) Execute hard disk format.
3) If the problem persists, replace the HDD.

Code: S1-2437, S1-2438, S1-2439
Description: HDD Error #S1-243x. Check users guide.
Causes: HDD partition or memory is full.
Troubleshooting Guides: 1) Enter SVC mode. Select “Hard Disk Maintenance” in Service Function menu.
2) Execute hard disk format.
3) If the problem persists, replace the HDD.

Code: S1-2445, S1-2446, S1-2447
Description: HDD System Failure #S1-24xx: Turn off then on.
Causes: HDD partition is full or corrupted.
Troubleshooting Guides: 1) Enter SVC mode. Select “System Recovery” in Service Function menu.
2) Execute hard disk format and firmware re-installation.
3) If the problem persists, replace the HDD.

Code: S1-2448, S1-2449
Description: HDD System Failure #S1-24xx: Turn off then on.
Causes: HDD partition is full or corrupted.
Troubleshooting Guides: 1) Enter SVC mode. Select “System Recovery” in Service Function menu.
2) Execute hard disk format and firmware re-installation.
3) If the problem persists, replace the HDD.

Code: S1-2510, S1-2521
Description: MSOK System Failure #S1-2510: Turn off then on.
MSOK Failure: #S1-2521. Call for service
Causes: MSOK is not installed properly. / MSOK is defective.
Troubleshooting Guides: 1) Remove the rear cover.
2) Check if the MSOK is inserted correctly. Remove and reinstall it.
3) If the problem persists, replace the main board.

Code: S1-3110
Description: Video System Failure #S1-3110: Turn off then on.
Causes: The main board is defective.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, turn the machine off again.
3) Replace the main board.
4) Turn the machine on.

Code: S1-4111
Description: Video System Failure #S1-4111: Turn off then on.
Causes: The main board can’t send the data through the network channel.
Troubleshooting Guides: 1) Check if the green LED of the network port is on.
2) If not, unplug and reconnect the network cable.
3) If the problem persists, replace the main board.

Code: S1-4311
Description: Video System Failure #S1-4311: Turn off then on.
Causes: The USB device chip is defective.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, turn the machine off again.
3) Replace the OPE hub board.
4) Turn the machine on.

Code: S1-5521
Description: FDI device is not installed. Install the device
Causes: FDI device was removed.
Troubleshooting Guides: 1) Check if the FDI is installed correctly. If necessary, re-install or replace it with new one.

Code: S2-1211, S2-2311, S2-3110
Description: Engine System Failure: #S2-1211. Turn off then on
Engine System Failure: #S2-2311. Turn off then on
Engine System Failure: #S2-3110. Turn off then on
Causes: The main board is defective.
Troubleshooting Guides: • Power chip error • EEPROM detection error • Communication error
1) Turn the machine off then on.
2) If the problem persists, turn the machine off again.
3) Replace the main board(JC92-02737A).
4) Turn the machine on.

Code: S2-3114
Description: Engine System Failure #S2-3114: Turn off then on.
Causes: ACR error has occurred.
Troubleshooting Guides: 1) Execute “ACR calibration” manually. (Machine Setup > General Settings > Image Management > Auto Color Registration)
2) Clean the ACR sensor.
3) If the problem persists, replace the main board(JC92-02737A).

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Code: S2-33xx, S2-34xx
Description: Wait delay time for lower fixing temperature…
Supplying and mixing toner to xxxx developer unit. Please wait…
Calibrating xxxx image density. Please wait…
Causes: These error show the engine status.
Troubleshooting Guides: 1) Wait until error will be disappeared.

Code: S2-4210
Description: Front door is open. Close it.
Causes: Front cover is opened.
Troubleshooting Guides: 1) Close the front cover correctly.
2) Check if the cover open sensor connector is connected properly. Reconnect it.
3) If the sensor is defective, replace it.

Code: S2-4410
Description: Right door is open. Close it.
Causes: Side cover is opened.
Troubleshooting Guides: 1) Close the side cover correctly.
2) Check if the cover open sensor connector is connected properly. Reconnect it.
3) If the sensor is defective, replace it.

Code: S2-5111, S2-5112, S2-5120
Description: Failed to adjust the color registration
Causes: ACR execution is failed.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, check the followings. • Check if the ACR sensor is contaminated or defective. Clean the ACR sensor or replace it. • Remove and reinstall the ITB unit. If the problem persists, replace the ITB unit.

Code: S2-5131, S2-5132, S2-5133
Description: Failed to adjust the color registration
Causes: ACR execution is failed.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, check the followings. • Check if the ACR sensor is contaminated or defective. Clean the ACR sensor or replace it. • Remove and reinstall the ITB unit. If the problem persists, replace the ITB unit.

Code: S2-5135, S2-5136, S2-5161
Description: Failed to adjust the color registration
Causes: ACR execution is failed.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, check the followings. • Check if the ACR sensor is contaminated or defective. Clean the ACR sensor or replace it. • Remove and reinstall the ITB unit. If the problem persists, replace the ITB unit.

Code: S2-5164, S2-5210, S2-5240
Description: Failed to adjust the color registration
Causes: ACR execution is failed.
Troubleshooting Guides: 1) Turn the machine off then on.
2) If the problem persists, check the followings. • Check if the ACR sensor is contaminated or defective. Clean the ACR sensor or replace it. • Remove and reinstall the ITB unit. If the problem persists, replace the ITB unit.

Code: S3-3121
Description: Scanner is locked.
Causes: Scanner module does not move.
Troubleshooting Guides: 1) Turn off the machine then on. Check if the scanner module works normally.
2) If the initial operation does not occurred normally, turn the machine off.
3) Remove the scan glass.
4) Check if the home position sensor cable is connected correctly.
5) Remove the scan rear cover. Check if all cables on scan joint board are connected correctly.
6) If the connection is OK, replace the scan joint board.

Code: S3-3211
Description: Scan System Failure #S3-3211: Turn off then on.
Causes: ADF is not connected or communication error occurs with CIP6 board.
Troubleshooting Guides: 1) Turn the machine off then on. If the problem persists, check the following:
2) Turn the machine off again.
3) Remove the scan rear cover. Check if the connector on scan joint board is connected correctly.
4) Remove the ADF rear cover. Check if the connector on ADF board is connected correctly.
5) If the connection is OK, replace the ADF board.

Code: S4-3131
Description: There has been a problem with fax modem card(Line 1). Install again. Call for service if the problem persists
Causes: 1st Fax card is not installed properly. / Fax card is defective.
Troubleshooting Guides: 1) Remove and reinstall the 1st fax card.
2) If the 1st fax card is defective, replace it.

Code: S4-3132
Description: There has been a problem with fax modem card(Line 1). Install again. Call for service if the problem persists
Causes: 2nd Fax card is not installed properly. / Fax card is defective.
Troubleshooting Guides: 1) Remove and reinstall the 2nd fax card.
2) If the 2nd fax card is defective, replace it.

Code: S5-311x
Description: UI System Failure #S5-311x:Turn off then on.
Causes: USB connection between main board and OPE has some problem.
Troubleshooting Guides: • S5-3111 : The UI can display messages, but data communication with the video/main board is unavailable. NOTE S5-3114~3117 are the sub errors of the S5-3111. These occurs with S5-3111.
– S5-3114 : USB hub controller on Main Board is not working – S5-3115 : There is a USB hub board, but the board can’t be recognized. – S5-3116 : System can recognize USB hub board but, it can’t recognize OPE(UI Board) through USB. – S5-3117 : Bad USB device is connected then it can’t recognize OPE(UI Board). Status: WIFI or NFC option kit connects through usb
• S5-3112 : The video board cannot communicate with the UI board.
• S5-3113 : A critical error where the set malfunctions due to a problem in HDD may occur.
1) Turn off and turn on. And check if the problem disappears. a) If yes, go to step 2)-a). b) If no, go to step 2)-b).
2) Check the following procedure. a) Print the Error Information Report. . Service Mode → General → Print Reports → Error Information . Check the error code which is printed on the report. – If S5-3111 has occurred, go to step 4). – If S5-3112 has occurred, go to step 5)-c). – If S5-3113 has occurred, go to step 5)-d). b) Enter into System Recovery Mode. • How to enter System Recovery Mode : Turn on the machine with side cover open and power button on OPE is pressed state. • Check if entering System Recovery Mode is possible or not. – If entering System Recovery Mode is successful, go to step 3). – If entering System Recovery Mode fails, go to step 5)-c).
3) Execute the System Recovery. • Insert USB memory stick which has recovery one rom and execute recovery(HDD format). • Check if the problem disappears after system recovery(format complete). – If yes, go to step 4). – If no, go to step 5)-d).
4) Execute the firmware update. • Check if the problem disappears after one rom update. – If the problem disappears, go to step 5)-a). – If the problem happens sometimes, go to step 5)-b).
5) Check the following procedure. a) No more action is required because machine is recovered from S5-3111 error state. Please monitor the machine if S5-3111 happens again. b) Detailed analysis is required. Please capture the log and send it to development team in HQ. c) It seems that there is some critical issue in the USB connection between main board and OPE. Please try below steps. i) If WiFi module is installed, replace WiFi module with new one. ii) Check USB cable state between main board and OPE. iii) Replace the main board with new one. iv) Replace the OPE board with new one. d) It seems that HDD or main board has some problem. Please replace HDD or main board with new one and check if the problem disappears.

Code: S6-3113, S6-3122
Description: Network Failure: #S6-3113. Turn off then on. Call for service if the problem persists
Network cable is disconnected. Check it.
Causes: Network cable is disconnected.
Troubleshooting Guides: 1) Check if the green LED of the network port is on.
2) If not, unplug and reconnect the network cable.
3) If the problem persists, replace the main board.

Code: S6-3114
Description: Network Failure: #S6-3114. Turn off then on. Call for service if the problem persists
Causes: Network chip in option network kit is defective.
Troubleshooting Guides: 1) Check if the green LED of the network port is on.
2) If not, unplug and reconnect the network cable.
3) Re-install the optional network kit.
4) If the problem persists, replace the optional network kit.
5) If the problem persists, replace the main board.

Code: S6-3123, S6-3128
Description: This IP address conflicts with that of other system. Check it.
802.1x authentication failed. Please Contact the System Administrator.
Causes: Network error. (IP address conflicts with that of another system. / Communication error / There is no response when checking the ping test.)
Troubleshooting Guides: • Change the machine’s IP address.
1) Select “Machine Setup” on the touch screen.
2) Select “Networking Setting”.
3) “Log-In”.
4) Select “TCP/IP”.
5) Select the proper item for your machine.
6) Select “IP Setting”.
7) Select the proper item for your machine.
8) Change the IP address.

Code: S7-2110
Description: Fuser Failure: #S7-2110. Turn off then on
Causes: Heater control relay is abnormal.
Troubleshooting Guides: 1) Turn the machine off. Re-install the fuser unit, then turn the machine on.
2) If the problem persists, replace the fuser unit.

Code: U1-2115
Description: Fuser Unit Failure: #U1-2115. Turn off then on.
Causes: The pressure control unit(Cam unit)of the fuser is abnormal.
Troubleshooting Guides: 1) Turn the machine off then open the side cover.
2) Remove and re-install the fuser unit, then turn the machine on.
3) If the problem persists, check the following : a) When the side-cover closes, check if the operation sound of the pressure control unit occurs. b) Check if the parts of the pressure control unit are abnormal. – Check if the shape of the CAM-REAR is broken. – Check if there are abnormal parts of the pressure control unit. c) Check if the fuser-motor is abnormal via SVC mode.
4) If the problem persists, replace the Fuser unit.
5) If the problem persists, replace the pressure control unit or cam-motor or main board.

Code: U1-2xxx
Description: Fuser Unit Failure: #U1-2xxx Turn off then on
Causes: The thermistor can’t measure temperature. The hear-roller will not heat-up. / Temperature of the fuser increases abnormally.
Troubleshooting Guides: 1) Remove the fuser unit. After opening the jam cover, check if jammed or wrapped paper is in the fuser unit.
2) Re-install the fuser unit, then turn the machine on.
3) If the problem persists, check the following : a) Check if the Halogen lamp is broken or disconnected. b) Check if the AC connection of the Halogen lamp is disconnected or contaminated. c) Check if the thermostat is disconnected. d) Check if the non-contact type thermistor is broken.
4) If the problem persists, replace the Fuser unit
5) If the problem persists, replace the Main board or FDB board or SMPS

Code: U2-2113, U2-3114
Description: Yellow LSU Failure: #U2-2113. Turn off then on
Magenta LSU Failure: #U2-3114. Turn off then on
Causes: Hsync signal of the LSU is abnormal.
Troubleshooting Guides: 1) Turn the machine off then on. Check for the LSU motor operation sound during warm-up.
2) Print a demo page to check that the machine operates normally.
3) If the problem persists, check the following : a) Turn the machine off and open the side cover. Unplug and reconnect the LSU cable. Print a demo page to check that the machine operates normally. b) Turn the machine off and open the side cover. Unplug and reconnect the LSU cable on main board. Print a demo page to check that the machine operates normally. c) If the LSU cable is defective, replace it. Check that the LSU motor makes a sound after turning the machine on. d) If the problem persists, replace the LSU.

Code: U2-4113, U2-5113
Description: Cyan LSU Failure: #U2-4113. Turn off then on
Black LSU Failure: #U2-5113. Please turn off then on
Causes: Hsync signal of the LSU is abnormal.
Troubleshooting Guides: 1) Turn the machine off then on. Check for the LSU motor operation sound during warm-up.
2) Print a demo page to check that the machine operates normally.
3) If the problem persists, check the following : a) Turn the machine off and open the side cover. Unplug and reconnect the LSU cable. Print a demo page to check that the machine operates normally. b) Turn the machine off and open the side cover. Unplug and reconnect the LSU cable on main board. Print a demo page to check that the machine operates normally. c) If the LSU cable is defective, replace it. Check that the LSU motor makes a sound after turning the machine on. d) If the problem persists, replace the LSU.

Code: U2-6120, U2-6121
Description: LSU Failure: #U2-612x. Please turn off then on
Causes: LSU motor does not operate or it operates abnormally. Motor ready signal is abnormal.
Troubleshooting Guides: 1) Turn the machine off then on. Check for the LSU motor operation sound during warm-up.
2) Print a demo page to check that the machine operates normally.
3) If the problem persists, check the following : a) If the LSU motor makes a sound, i) Enter SVC mode to check the LSU motor ready signal. ( Diagnostics > Engine Diagnostics > Engine Test Routines) ii) Select “LSU Motor1 Run Ready”. ( Diagnostics > Engine Diagnostics > Engine Test Routines > 110-0000) iii) Press ‘Start’ button. Check that the status has changed to ‘Executing -> Low -> High’. iv) If the status has not changed, the motor ready signal is abnormal. Replace the LSU. b) If the LSU motor does not makes a sound, i) Turn the machine off and open the side cover. Unplug and reconnect the LSU cable. Check that the LSU motor make a sound after turning the machine on. ii) Turn the machine off and remove the rear cover. Unplug and reconnect the LSU cable on main board. Check that the LSU motor make a sound after turning the machine on. iii) If the LSU cable is defective, replace it. Check that the LSU motor make a sound after turning the machine on. iv) If the problem persists, replace the LSU.

Code: U2-6122, U2-6123
Description: LSU Failure: #U2-612x. Please turn off then on
Causes: LSU motor does not operate or it operates abnormally. Motor ready signal is abnormal.
Troubleshooting Guides: 1) Turn the machine off then on. Check for the LSU motor operation sound during warm-up.
2) Print a demo page to check that the machine operates normally.
3) If the problem persists, check the following : a) If the LSU motor makes a sound, i) Enter SVC mode to check the LSU motor ready signal. ( Diagnostics > Engine Diagnostics > Engine Test Routines) ii) Select “LSU Motor1 Run Ready”. ( Diagnostics > Engine Diagnostics > Engine Test Routines > 110-0000) iii) Press ‘Start’ button. Check that the status has changed to ‘Executing -> Low -> High’. iv) If the status has not changed, the motor ready signal is abnormal. Replace the LSU. b) If the LSU motor does not makes a sound, i) Turn the machine off and open the side cover. Unplug and reconnect the LSU cable. Check that the LSU motor make a sound after turning the machine on. ii) Turn the machine off and remove the rear cover. Unplug and reconnect the LSU cable on main board. Check that the LSU motor make a sound after turning the machine on. iii) If the LSU cable is defective, replace it. Check that the LSU motor make a sound after turning the machine on. iv) If the problem persists, replace the LSU.

Code: U2-7110, U2-7111, U2-7112
Description: LSU Failure: #U2-711x. Turn off then on
Causes: Temperature sensor of the LSU is abnormal.
Troubleshooting Guides: 1) Turn the machine off then on. Check for the LSU motor operation sound during warm-up.
2) Print a demo page to check that the machine operates normally.
3) If the problem persists, check the following : a) Turn the machine off and open the side cover. Unplug and reconnect the LSU cable. Print a demo page to check that the machine operates normally. b) Turn the machine off and open the side cover. Unplug and reconnect the LSU cable on main board. Print a demo page to check that the machine operates normally. c) If the LSU cable is defective, replace it. Check that the LSU motor makes a sound after turning the machine on. d) If the problem persists, replace the LSU.

Code: U3-3111, U3-3113, U3-3114
Description: Original paper jam in front of the scanner
Original paper jam inside of scanner
Causes: Jam has occurred inside the DSDF unit.
Troubleshooting Guides: 1) Open the DSDF cover. If there is jammed paper, remove it.
2) If this error occurs continually, check the Regi. sensor and Regi actuator. Push and release the regi actuator. Check if the pick up module returns the original position. If the sensor is defective, replace it.
3) If the regi sensor is OK, check the scan 1 sensor and reflect film. • If the scan 1 sensor is defective, replace it. • If the reflect film is contaminated, clean it.

Code: U3-3111, U3-3113, U3-3114
Description: Original paper jam inside of scanner
Causes: Jam has occurred inside the DSDF unit.
Troubleshooting Guides: 1) Find and remove the jammed paper.
2) If this error occurs continually, remove 4 screws and the upper cover.
3) Check the Pick-up Position Sensor(0604–001393) and Pick-up Feed Sensor(0604–001381) connection.
4) Check if the black sheet from the bottom of the pick up feed sensor is attached properly. If it is contaminated, clean it.
5) If the sensor is defective, replace it.

Code: U3-3122
Description: Documents are inserted incorrectly. After open the scanner`s door, put it again. Call for service if the problem persists
Causes: DSDF pick up module has the problem.
Troubleshooting Guides: 1) Open and close the DSDF cover. Check if the error message is disappeared.
2) Open the DSDF cover. Push and release the pick up module. Check if the pick up module returns the original position. • Check if the spring is deformed. If the spring is defective, replace it.
3) Check If the regi sensor is OK, check the scan sensor and scan actuator. If their operation is abnormal, replace the defective part.

Code: U3-3122
Description: Documents are inserted incorrectly. After open the scanner`s door, put it again. Call for service if the problem persists
Causes: DSDF pick up module has the problem.
Troubleshooting Guides: 1) Open and close the DSDF cover. Check if the error message is disappeared.
2) Open the DSDF cover. Push and release the pick up module. Check if the pick up module returns the original position. • Check if the spring is deformed. If the spring is defective, replace it.
3) Check If the regi sensor is OK, check the scan sensor and scan actuator. If their operation is abnormal, replace the defective part.

Code: U3-3211, U3-3213, U3-3214
Description: Original paper jam in front of the scanner
Original paper jam inside of scanner
Causes: Jam has occurred inside the DSDF unit.
Troubleshooting Guides: 1) Open the DSDF cover. If there is jammed paper, remove it.
2) If this error occurs continually, check the Regi. sensor and Regi actuator. Push and release the regi actuator. Check if the pick up module returns the original position. If the sensor is defective, replace it.
3) If the regi sensor is OK, check the scan 1 sensor and reflect film. • If the scan 1 sensor is defective, replace it. • If the reflect film is contaminated, clean it.

Code: U3-3211, U3-3213, U3-3214
Description: Original paper jam inside of scanner
Causes: Jam has occurred inside the DSDF unit.
Troubleshooting Guides: 1) Find and remove the jammed paper.
2) If this error occurs continually, remove 4 screws and the upper cover.
3) Check the Pick-up Position Sensor(0604–001393) and Pick-up Feed Sensor(0604–001381) connection.
4) Check if the black sheet from the bottom of the pick up feed sensor is attached properly. If it is contaminated, clean it.
5) If the sensor is defective, replace it.

Code: U3-3311, U3-3313, U3-3314
Description: Original paper jam in front of the scanner
Original paper jam inside of scanner
Causes: Jam has occurred inside the DSDF unit.
Troubleshooting Guides: 1) Open the DSDF cover. If there is jammed paper, remove it.
2) If this error occurs continually, check the Regi. sensor and Regi actuator. Push and release the regi actuator. Check if the pick up module returns the original position. If the sensor is defective, replace it.
3) If the regi sensor is OK, check the scan 1 sensor and reflect film. • If the scan 1 sensor is defective, replace it. • If the reflect film is contaminated, clean it.

Code: U3-3311, U3-3313, U3-3314
Description: Original paper jam inside of scanner
Causes: Jam has occurred inside the DSDF unit.
Troubleshooting Guides: 1) Find and remove the jammed paper. 2) If this error occurs continually, open the DSDF-open cover and check the Pre-Regi sensor and Regi sensor. If the sensor is defective, replace it(0604–001381).
3) Open the DSDF Unit and check the Scan In sensor operation. Check if the sensor harness is connected correctly. If the sensor is defective, replace it. If the black sheet in the middle of the platen ADF glass is contaminated, clean it.

Code: U3-3511, U3-3513, U3-3514
Description: Original paper jam inside of scanner.
Causes: Jam has occurred inside the DSDF unit.
Troubleshooting Guides: 1) Open the DSDF cover. If there is jammed paper, remove it.
2) If this error occurs continually, check the Regi. sensor and Regi actuator. Push and release the regi actuator. Check if the pick up module returns the original position. If the sensor is defective, replace it.
3) If the regi sensor is OK, check the scan 2 sensor and exit sensor. • If the scan 2 sensor is defective, replace it. • If the exit sensor is defective, replace it.

Code: U3-3511, U3-3613, U3-3614
Description: Original paper jam in the exit area of scanner
Causes: Jam has occurred in exit area of the DSDF unit.
Troubleshooting Guides: 1) Find and remove the jammed paper.
2) If this error occurs continually, push the locking lever and pull down the Scan Out.
3) Check the Scan Out sensor and Exit sensor. If the sensor is defective, replace it(0604–001381).

Code: U3-3611, U3-361, U3-3614
Description: Original paper jam in the exit area of scanner
Causes: Jam has occurred in exit area of the DSDF unit.
Troubleshooting Guides: 1) Find and remove the jammed paper.
2) If this error occurs continually, push the locking lever and pull down the Scan Out.
3) Check the Scan Out sensor and Exit sensor. If the sensor is defective, replace it(0604–001381).

Code: U3-3611, U3-3613, U3-3614
Description: Original paper jam in the exit area of scanner
Causes: Jam has occurred in exit area of the DSDF unit.
Troubleshooting Guides: 1) Open the DSDF cover. If there is jammed paper, remove it.
2) If the regi sensor is OK, check the scan 2 sensor and exit sensor. • If the scan 2 sensor is defective, replace it. • If the exit sensor is defective, replace it.

Code: U3-4210
Description: Top door of scanner is open.
Causes: DSDF cover is open.
Troubleshooting Guides: 1) Open and close the DSDF cover. Check if the error message is disappeared.
2) If the problem persists, check the cover open sensor. a) Open the DSDF cover. Remove the spring. b) Check if the sensor connector is connected correctly. If the sensor is defective, replace it.

Code: U3-4210
Description: Top door of scanner is open.
Causes: DSDF cover is open.
Troubleshooting Guides: 1) Open and close the DSDF cover. Check if the error message is disappeared.
2) If the problem persists, check the cover open sensor. a) Open the DSDF cover. Remove 4 screws. b) Remove the cover and check if the sensor harness is connected correctly. If the sensor is defective, replace it.

– About get help with reseting Epson inkpad or others, click here

Samsung printer reset software introduction:

Notes before resetting Samsung printer:

– Identify accurate version, serial and crum of Samsung printer.
– How to get Samsung printer model info: Click Here
– Before you continue with the reprogramming of the firmware, please make sure that the device is installed on your computer.
– It is very important that under no circumstances should you remove the chip from the cartridge while reprogramming the firmware. After you have succesfully reprogrammed the printer, remove the chip from the cartridge and store it somewhere safely (the chip – a key). In all cartridges which you are going to use in the printer, the chip has to be either removed or sealed. If you have accidently inserted a new cartridge without removing the chip, the device will be blocked. In order to unblock it, you can use the stored chip as a key which help you to unblock the printer.
– And make sure that any other devices (except mouse and keyboard), which are connected to your computer via USB or LPT ports are disconnected. It’s preferable that the computer is connected to the “UPS” (uninterruptible power source) device, because if during the reprogramming process the electricity source has any interruptions, then the reprogramming will be carried out with an error, which makes the device unable to work.
– This firmware will be installed directly to your printer. Before opening firmare link make sure that printer is turned on and connected to your computer and printer drivers are installed correctly.
Be aware that with the reprogramming of the firmware the manufacturer’s warranty goes lost!!

How To Run Firmware Fix Samsung printer

1. Connect the printer to the computer and turn it on.
2. Wait until the printer is ready for work.
3. Drag and drop *.hd to usbprns2.exe file.

4. The reprogramming process starts automatically.
5. Wait until the printer reprograms (10-20 minute) and restarts.
6. After that the reprogramming process is finished, restart the printer.

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Samsung SLX7400LX model and fix error codes list