# Ink recognition error

#Error name

• Ink recognition read error

  • Black (error code: 920621)

  • Cyan (error code: 920622)

  • Magenta (error code: 920623)

  • Yellow (error code: 920624)

• Ink recognition write error

  • Black (error code: 920641)

  • Cyan (error code: 920642)

  • Magenta (error code: 920643)

  • Yellow (error code: 920644)

#Error occurrence condition

• Occurs if the data written to CSIC of the ink pack differs from normal or cannot be recognized.
• Occurs when there is still ink remaining in the ink pack, even if the buffer does not expand because of defective ink suction (= the main unit determines that an ink end has occurred). (Technical Information:  TE20-0765)

#Trouble related parts and causes

• Ink pack attachment failure

• CSIC contact parts dirty (printer side, maintenance box side)

• Ink pack CSIC failure

• CSIC contact part failure (Ink Supply Unit)

• Mechanism Relay Board ink detector harness has been inserted diagonally (ink end sensor cable (A))
  
• Defective FFC connection between CRCM and CSIC, FFC defect
  

#Troubleshooting