• Code: 1920
• Description: HEATER CONT BOARD ASSYSUB TANK SENSOR 1 failure
  The High sensor for the sub tank 1 is ON (ink exists), but the Low senor is OFF.
• Remedy: Check whether the SUB TANK SENSOR is properly connected. Replace the SUB TANK SENSOR .

• Code: 1921
• Description: HEATER CONT BOARD ASSYSUB TANK SENSOR 2 failure
  The High sensor for the sub tank 2 is ON (ink exists), but the Low senor is OFF.
• Remedy: Check whether the SUB TANK SENSOR is properly connected. Replace the SUB TANK SENSOR .

• Code: 1922
• Description: HEATER CONT BOARD ASSYSUB TANK SENSOR 3 failure
  The High sensor for the sub tank 3 is ON (ink exists), but the Low senor is OFF.
• Remedy: Check whether the SUB TANK SENSOR is properly connected. Replace the SUB TANK SENSOR .

• Code: 1923
• Description: HEATER CONT BOARD ASSYSUB TANK SENSOR 4 failure
  The High sensor for the sub tank 4 is ON (ink exists), but the Low senor is OFF.
• Remedy: Check whether the SUB TANK SENSOR is properly connected. Replace the SUB TANK SENSOR .

• Code: 1924
• Description: HEATER CONT BOARD ASSYSUB TANK SENSOR 5 failure
  The High sensor for the sub tank 5 is ON (ink exists), but the Low senor is OFF.
• Remedy: Check whether the SUB TANK SENSOR is properly connected. Replace the SUB TANK SENSOR .

• Code: 1925
• Description: HEATER CONT BOARD ASSYSUB TANK SENSOR 6 failure
  The High sensor for the sub tank 6 is ON (ink exists), but the Low senor is OFF.
• Remedy: Check whether the SUB TANK SENSOR is properly connected. Replace the SUB TANK SENSOR .

• Code: 1926
• Description: HEATER CONT BOARD ASSYSUB TANK SENSOR 7 failure
  The High sensor for the sub tank 7 is ON (ink exists), but the Low senor is OFF.
• Remedy: Check whether the SUB TANK SENSOR is properly connected. Replace the SUB TANK SENSOR .

• Code: 1927
• Description: HEATER CONT BOARD ASSYSUB TANK SENSOR 8 failure
  The High sensor for the sub tank 8 is ON (ink exists), but the Low senor is OFF.
• Remedy: Check whether the SUB TANK SENSOR is properly connected. Replace the SUB TANK SENSOR .