• Code: EC21 2F51
• Description: VH leak error at starting up, cleaning, and print starting (support number : 4801)
• Causes: VH leak is detected at starting up, cleaning, and print starting.
• Remedy: 1 Reboot the printer.

• Code: EC21 2F53
• Description: VH leak error at rebooting (support number : 1478)
• Causes: The printer does not recover by rebooting after VH leak error at starting up, cleaning, and print starting.
• Remedy: 1 Perform [DIAGNOSIS > CR_SYSTEM_CHECK] to diagnose carriage system. No problem Go to 2. Abnormal • Problem in ACC. SENSOR CHECK or CR VIBRATIONCHECK Replace CARRIAGE UNIT. • Problem in LONG FFC CHECK or CRC value changes after turning the printer off and back on Replace FLEXIBLE CABLE UNIT. 2 Remove the print head and check the condition of print head contacting part. Proper condition Replace the print head. Improper condition Go to 3. 3 Clean the surface of the print head contacting part. (The waste cloth without a nap must be used.) The problem is resolved Complete. The problem is not resolved Go to 4. 4 Replace the print head. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform PCB replacement mode and necessary adjustments.)

• Code: EC21 2F54
• Description: Print head abnormal VH voltage error (support number : 4801)
• Causes: VH voltage of the print head is detected.
• Remedy: 1 Perform [DIAGNOSIS > CR_SYSTEM_CHECK] to diagnose carriage system. No problem Go to 2. Abnormal • Problem in ACC. SENSOR CHECK or CR VIBRATIONCHECK Replace CARRIAGE UNIT. • Problem in LONG FFC CHECK or CRC value changes after turning the printer off and back on Replace FLEXIBLE CABLE UNIT. 2 Remove the print head and check the condition of print head contacting part. Proper condition Replace the print head. Improper condition Go to 3. 3 Clean the surface of the print head contacting part. (The waste cloth without a nap must be used.) The problem is resolved Complete. The problem is not resolved Go to 4. 4 Replace the print head. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform PCB replacement mode and necessary adjustments.)

• Code: EC21 2F56
• Description: VHTR leak error at print head replacement (support number : 1477)
• Causes: VHTR leak is detected at print head replacement.
• Remedy: 1 Perform [DIAGNOSIS > CR_SYSTEM_CHECK] to diagnose carriage system. No problem Go to 2. Abnormal • Problem in ACC. SENSOR CHECK or CR VIBRATIONCHECK Replace CARRIAGE UNIT. • Problem in LONG FFC CHECK or CRC value changes after turning the printer off and back on Replace FLEXIBLE CABLE UNIT. 2 Remove the print head and check the condition of print head contacting part. Proper condition Replace the print head. Improper condition Go to 3. 3 Clean the surface of the print head contacting part. (The waste cloth without a nap must be used.) The problem is resolved Complete. The problem is not resolved Go to 4. 4 Replace the print head. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform PCB replacement mode and necessary adjustments.)

• Code: EC21 2F57
• Description: VHTR leak error at starting up, cleaning, and print starting (support number : 4801)
• Causes: The printer does not recover by rebooting after VHTR leak error at starting up, cleaning, and print starting.
• Remedy: 1 Reboot the printer.

• Code: EC21 2F58
• Description: VHTR leak error at rebooting (support number : 1478)
• Causes: The printer does not recover by rebooting after VHTR leak error at starting up, cleaning, and print starting.
• Remedy: 1 Perform [DIAGNOSIS > CR_SYSTEM_CHECK] to diagnose carriage system. No problem Go to 2. Abnormal • Problem in ACC. SENSOR CHECK or CR VIBRATIONCHECK Replace CARRIAGE UNIT. • Problem in LONG FFC CHECK or CRC value changes after turning the printer off and back on Replace FLEXIBLE CABLE UNIT. 2 Remove the print head and check the condition of print head contacting part. Proper condition Replace the print head. Improper condition Go to 3. 3 Clean the surface of the print head contacting part. (The waste cloth without a nap must be used.) The problem is resolved Complete. The problem is not resolved Go to 4. 4 Replace the print head. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform PCB replacement mode and necessary adjustments.)

• Code: EC21 2F59
• Description: Print head abnormal VHTR voltage error (support number : 4801)
• Causes: Abnormal VHTR voltage of the print head is detected.
• Remedy: 1 Perform [DIAGNOSIS > CR_SYSTEM_CHECK] to diagnose carriage system. No problem Go to 2. Abnormal • Problem in ACC. SENSOR CHECK or CR VIBRATIONCHECK Replace CARRIAGE UNIT. • Problem in LONG FFC CHECK or CRC value changes after turning the printer off and back on Replace FLEXIBLE CABLE UNIT. 2 Remove the print head and check the condition of print head contacting part. Proper condition Replace the print head. Improper condition Go to 3. 3 Clean the surface of the print head contacting part. (The waste cloth without a nap must be used.) The problem is resolved Complete. The problem is not resolved Go to 4. 4 Replace the print head. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform PCB replacement mode and necessary adjustments.)

• Code: EC21 2F5A
• Description: Print head VSH leak error at print head replacement (support number : 1477)
• Causes: VSH leak is detected at print head replacement.
• Remedy: 1 Perform [DIAGNOSIS > CR_SYSTEM_CHECK] to diagnose carriage system. No problem Go to 2. Abnormal • Problem in ACC. SENSOR CHECK or CR VIBRATIONCHECK Replace CARRIAGE UNIT. • Problem in LONG FFC CHECK or CRC value changes after turning the printer off and back on Replace FLEXIBLE CABLE UNIT. 2 Remove the print head and check the condition of print head contacting part. Proper condition Replace the print head. Improper condition Go to 3. 3 Clean the surface of the print head contacting part. (The waste cloth without a nap must be used.) The problem is resolved Complete. The problem is not resolved Go to 4. 4 Replace the print head. The problem is resolved Complete. The problem is not resolved Replace MAIN PCB UNIT. (After replacement, perform PCB replacement mode and necessary adjustments.)