• Code: EC52 4038
• Description: Abnormal power voltage error at waiting or printing (support number : 9110) Memo : Remove the error in service mode when handling is completed.
• Causes: Power supply from the power supply unit stops at waiting or printing.
• Remedy: 1 Reconnect after unplugging the power cable from the AC outlet for ten seconds or longer. The problem is resolved Complete. The problem is not resolved Go to 2. 2 Replace the POWER SUPPLY UNIT. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform board replacement mode and necessary adjustments.)

• Code: EC52 4039
• Description: Abnormal power supply voltage error at leak detection (support number : 9110) Memo : Remove the error in service mode when handling is completed.
• Causes: Power supply from the power supply unit stops at leak detection.
• Remedy: 1 Reconnect after unplugging the power cable from the AC outlet for ten seconds or longer. The problem is resolved Complete. The problem is not resolved Go to 2. 2 Replace the POWER SUPPLY UNIT. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform board replacement mode and necessary adjustments.)

• Code: EC54 290A
• Description: Hard disk un-connection error (support number : 4801)
• Causes: Hard disk detection at start-up fails.
• Remedy: 1 Check if the hard disk cable is connected to the MAIN PCB UNIT. Connected Go to 2. Disconnected Connect the cable. The problem is resolved Complete. The problem is not resolved Go to 2. 2 Replace the hard disk cable. The problem is resolved Complete. The problem is not resolved Go to 3. 3 Replace the hard disk. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform board replacement mode and necessary adjustments.)

• Code: EC54 401A
• Description: Hard disk reading/writing error (support number : 7001) Memo : Remove the error in service mode when handling is completed.
• Causes: Reading/writing to the hard disk is disabled.
• Remedy: 1 Replace the hard disk cable. The problem is resolved Complete. The problem is not resolved Go to 2. 2 Replace the hard disk. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform board replacement mode and necessary adjustments.) *When the problem is not resolved, obtain SMART information from PRINT INF, and escalate the issue to sales company head quarters in each area.

• Code: EC54 405A
• Description: Hard disk capacity mis-recognition error (support number : 7003) Memo : Remove the error in service mode when handling is completed.
• Causes: Hard disk capacity difference is detected at start-up.
• Remedy: 1 Replace the hard disk.

• Code: EC54 405B
• Description: Hard disk model mis-match error (support number : 7004) Memo : Remove the error in service mode when handling is completed.
• Causes: Hard disk model ID mismatch is detected at start-up.
• Remedy: 1 Replace the hard disk.

• Code: EC55 2F20
• Description: Flexible cable connection error (support number : 4801)
• Causes: Abnormity, left connection, or inappropriate connection in flexible cable connection between MAIN PCB UNIT and CARRIAGE RELAY PCB UNIT.
• Remedy: 1 Check the flexible cable connection. Proper connection Replace the FLEXIBLE CABLE UNIT. Improper connection Reconnect the FLEXIBLE CABLE UNIT. The problem is not resolved Go to 2. 2 Reconnect after unplugging the power cable from the AC outlet for ten seconds or longer. The problem is resolved Complete. The problem is not resolved Replace the POWER SUPPLY UNIT.

• Code: EC56 2FE0
• Description: Power supply error in sub ink tank unit (support number : 6502)
• Causes: The power is not supplied to ink tank ROMs.
• Remedy: 1 Check the MAIN PCB UNIT cable connection. Proper connection Go to 2. Improper connection Connect the cable. 2 Check if the ink tank is empty. Not empty Replace the SUB INK TANK UNIT. Empty Replace the INK TANK.