Canon PIXMA iP4200 Service Manual - Page 54

2-2. Carriage Board (Print Head Connector) No. Signal name 1, 2 A_GNDH 3 HD2_C1 4 HD8_Y1 5 VSS 6 HD6_PBK1 7, 8 B_GNDH 9 HD3_SC1 10 HD5_SM1 11 HD4_M1 12 HENB1 13 HD10_SM2 14 VSS 15 HD11_M2 16 DIK 17 HD0_K1 18 HENB0 19 HENB3 20 HLAT 21 HD12_SC2 22 HD7_PBK2 23 HD9_Y2 24 HENB2 25 HD1_K2 26 DIA0 27 HVDD_3.3V 28 ROM_CS 29 HCLK 30 ROM_DIO (O) Function Head GND Head data C1 Head data Y1 Logic GND Head data PBK1 Head GND Head data SC1 Head data SM1 Head data M1 Head heat enable signal 1 Head data SM2 Logic GND Head data M2 Diode sensor cathode Head data BK1 Head heat enable signal 0 Head heat enable signal 3 Head data latch signal Head data SC2 Head data PBK2 Head data Y2 Head heat enable signal 2 Head data BK2 Diode sensor anode 0 Head logic power supply 3.3V Head EEPROM chip select signal Head clock signal Head EEPROM data signal 3-7 Input / Output - OUT OUT OUT OUT OUT OUT OUT OUT OUT IN OUT OUT OUT OUT OUT OUT OUT OUT OUT IN OUT OUT OUT IN