• Code: EC21 2F78
• Description: Print head abnormal temperature rising error A (reboot request) (support number : 5200)
• Causes: Abnormal temperature rising is detected from heater board at away position side. (support number : 5200) * After connecting the flexible cable, when this error occurs at printer rebooting, the cause is connection of the FLEXIBLE CABLE UNIT. Check the cable connection, and reboot the printer.
• Remedy: 1 Reboot the printer.

• Code: EC21 2F79
• Description: Print head abnormal temperature rising error H (reboot request) (support number : 1478)
• Causes: The printer does not recover by rebooting after print head abnormal temperature rising error H. * After connecting the flexible cable, when this error occurs at printer rebooting, the cause is connection of the FLEXIBLE CABLE UNIT. Check the cable connection, and reboot the printer.
• Remedy: 1 Replace the print head.

• Code: EC21 2F7A
• Description: Print head abnormal temperature rising error M (reboot request) (support number : 1478)
• Causes: The printer does not recover by rebooting after print head abnormal temperature rising error M. * After connecting the flexible cable, when this error occurs at printer rebooting, the cause is connection of the FLEXIBLE CABLE UNIT. Check the cable connection, and reboot the printer.
• Remedy: 1 Replace the print head.

• Code: EC21 2F7B
• Description: Print head abnormal temperature rising error A (reboot request) (support number : 1478)
• Causes: The printer does not recover by rebooting after print head abnormal temperature rising error A. * After connecting the flexible cable, when this error occurs at printer rebooting, the cause is connection of the FLEXIBLE CABLE UNIT. Check the cable connection, and reboot the printer.
• Remedy: 1 Replace the print head.

• Code: EC21 2F7D
• Description: Print head contact error before non-ejection detection (support number : 4801)
• Causes: Sending command to the print head is disabled.
• Remedy: 1 Remove the print head and check the condition of print head contacting part. Proper condition Go to 2. Abnormal condition Clean the surface of the print head contacting part. (The waste cloth without a nap must be used.) * After connecting the flexible cable, when this error occurs at printer rebooting, the cause is connection of the FLEXIBLE CABLE UNIT. Check the cable connection, and reboot the printer. 2 Perform [DIAGNOSIS > CR_SYSTEM_CHECK] to diagnose carriage system. No problem Replace the print head. 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.

• Code: EC22 2F30
• Description: Adjustment error of head management sensor position (support number : 4801)
• Causes: Adjusting head management sensor position is failed.
• Remedy: 1 Check if the ink is filled into ink tubes. Ink is filled Go to 2. Ink is not filled Perform [DIAGNOSIS > PURGE CHECK] to diagnose ink vacuum of PURGE UNIT. PURGE UNIT ink vacuum diagnosis Proper operation Perform deep cleaning and fill the ink. When the ink vacuum does not recover, replace the print head. Abnormal operation Replace PURGE UNIT. 2 Print user nozzle check pattern or service nozzle check pattern to check the nozzle condition. (Check if blur or non-ejection appears at the top and bottom edge line of the nozzle check pattern.) Appropriate condition Replace HEAD MANAGEMENT SENSOR UNIT. Abnormal condition Perform deep cleaning and fill the ink. When the ink vacuum does not recover, replace the print head.

• Code: EC22 2F47
• Description: Abnormal HEAD MANAGEMENT SENSOR UNIT error (support number : 4801)
• Causes: Abnormal HEAD MANAGEMENT SENSOR UNIT is detected at starting up and non- ejection detection.
• Remedy: 1 Check the items below. a) Adherence of paper dust and hairs on the HEAD MANAGEMENT SENSOR UNIT. b) Adherence or laying-up of large amount of ink mist on the HEAD MANAGEMENT SENSOR UNIT. c) Connector condition. Appropriate condition and proper connection Go to 2. Inappropriate condition or improper connection a) Remove it. b) Perform cleaning or replace HEAD MANAGEMENT SENSOR UNIT. c) Connect the connector. 2 Check if the fuse (FU5202) on MAIN PCB UNIT is disconnected. Connected Replace HEAD MANAGEMENT SENSOR UNIT. Disconnected Replace MAIN PCB UNIT. (After replacement, perform PCB replacement mode and necessary adjustments.)

• Code: EC22 4001
• Description: End-of-life error of HEAD MANAGEMENT SENSOR UNIT (support number : 5B16) Memo : Remove the error in service mode after handling.
• Causes: Ink amount in the head management sensor exceeds the threshold.
• Remedy: 1 Replace HEAD MANAGEMENT SENSOR UNIT.