3 - 62-2. Carriage board (print head connection terminals)No. Signal name Function Input/Output1, 2 GND_H Head GND -3 DATAC Head data C Out4 DATALC Head data LC Out5 DATAK Head data BK Out6 DATAY Head data Y Out7 DATALM Head data LM Out8 to 13 GND_H Head GND -14 TSOCLC Status output C, LC Out15 BG Transmission clock clutch signal Out16 HDSEN Head presence detection signal In17 HCLK Head transmission clock Out18 DATAM Head data M Out19,20 GND_H Head GND -21 HEKX Head enable BK Out22 HELCX Head enable LC Out23 HECX Head enable C Out24 VDD Head logic drive power supply 3.3V Out25 VSS Logic GND -26 VSS-A Logic GND -27 VDD-A Head logic drive power supply 3.3V Out28 HEMX Head enable M Out29 HELMX Head enable LM Out30 HEYX Head enable Y Out31 to 33 VH Head drive power 16V Out34 VDD Head logic drive power supply 3.3V Out35 DHE Head enable dummy nozzle Out36 VSS Logic GND -37 TSOCLC Status output C, LC Out38 TSOLMM Status output LM, M Out39 to 42 VH Head drive power 16V Out43 E_CS Head EEPROM chip select signal Out44 E_SK Head EEPROM serial clock signal Out45 E_DI Head EEPROM data signal In46 EEPROM_DO Head EEPROM data signal Out47 VHT Head drive power 16V (short-circuiting with VH onthe logic board) Out48 to 50 VH Head drive power 16V OutNo.50No.41No.10No.1