• Code: EC1C 2034
• Description: Detection disable of lower roll nip arm sensor (support number : 4801)
• Causes: LOWER ROLL NIP SENSOR fails to detect nip position when starting up or shifting nip position.
• Remedy: 1 Check the items below. a) Foreign substances around lower DRIVE NIP ARM UNIT. b) Perform [DIAGNOSIS > I/O DISPLAY] to check LOWER ROLL NIP SENSOR operation. No foreign substance and proper operation Replace DRIVE NIP ARM UNIT. Foreign substance is adhering or improper operation a) Remove the foreign substance. b) Replace UPPER ROLL NIP SENSOR.

• Code: EC1C 2035
• Description: Timeout error of lower roll nip arm drive (support number : 4801)
• Causes: Lower DRIVE NIP ARM UNIT does not finish driving within the scheduled time.
• Remedy: 1 Check if foreign substances are adhering around lower DRIVE NIP ARM UNIT. Without foreign substance Replace DRIVE NIP ARM UNIT. With foreign substances Remove the foreign substance.

• Code: EC1C 2036
• Description: Overload drive error of upper roll nip arm (support number : 4801)
• Causes: The motor of lower DRIVE NIP ARM UNIT keeps 100% output for longer than the specified duration.
• Remedy: 1 Check if foreign substances are adhering around lower DRIVE NIP ARM UNIT. No foreign substance Replace DRIVE NIP ARM UNIT. Foreign substances are adhering Remove the foreign substances.

• Code: EC1C 2037
• Description: Lower roll nip arm motor error (support number : 4801)
• Causes: At the timing when lower DRIVE NIP ARM UNIT drive timeout or drive overload occurs, firmware receives operation command.
• Remedy: 1 Check if foreign substances are adhering around lower DRIVE NIP ARM UNIT. Without foreign substance Replace DRIVE NIP ARM UNIT. With foreign substances Remove the foreign substance.

• Code: EC21 282D
• Description: Print head Si solution error (reboot request) (support number : 140C)
• Causes: Si solution amount is more than the standard solution amount. * 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 282E
• Description: Print head Si solution error (print head replacement request) (support number : 1403)
• Causes: The printer does not recover by rebooting after print head Si solution error.
• Remedy: 1 Replace the print head.

• Code: EC21 2F43
• Description: Print head 768 nozzles complete non-ejection (support number : 1494)
• Causes: Non-ejection in 768 nozzles is detected through non-ejection detection.
• Remedy: 1 When the printer does not recover by rebooting, check if the ink is filled into tubes. Ink is filled Go to 2. (Ink inside of the print head insufficiency or print head defect is suspected.) Ink is not filled Replace the TUBE UNIT. 2 Perform deep cleaning, and print nozzle check pattern. Proper nozzle pattern Complete. Improper nozzle pattern Replace the print head.

• Code: EC21 2F50
• Description: VH leak error at print head replacement (support number : 1477)
• Causes: VH 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.)