Canon PIXMA MP530, Service Manual, Page: 77 / 91

CN302 (Print Head 2/2 [Carriage Unit])
CN401 (Power Supply Unit)
18 H_ENB1 Head heat enable signal (Col-1) OUT
19 H_LATCH Head data latch signal OUT
20 H_EEPROM_CS Head EEPROM chip select signal OUT
21 H_EEPROM_SK Head EEPROM serial clock signal OUT
22 H_D10 Head data (SM2) OUT
23 LOGIC_GND Logic ground -
24 H_CLK Head data transfer clock signal OUT
25 H_EEPROM_DIO Head EEPROM input output data IN/OUT
26 H_D12 Head data (SC2) OUT
27 H_D6 Head data (M1) OUT
28 LOGIC_GND Logic ground -
29 CR_ENCB Carriage encoder phase B IN
30 LOGIC_GND Logic ground -
31 CR_ENCA Carriage encoder phase A IN
32 LOGIC_GND Logic ground -
33 DIA1 Diode sensor anode 1 IN
34 LOGIC_GND Logic ground -
35 H_D7 Head data (SM1) OUT
36 H_D11 Head data (M2) OUT
37 H_D9 Head data (Y2) OUT
38 H_D13 Head data (C2) OUT
39 SNS_CDR_P CDR position sensor signal IN
40 THERMO Carriage temperature sensor signal IN
41 LOGIC_GND DIK (logic ground) -
42 H_ENB2 Head heat enable signal 2 (Col-2) OUT
43 VSEN_CDRS CDR sensor power supply OUT
44 VSEN_3.3V Sensor power supply 3.3V OUT
45 LOGIC_GND Logic ground -
No. Signal name Function Input / Output
1 to 3 H_GND Head drive ground -
4 to 6 HVH_24V Head drive power 24V OUT
7 to 10 H_GND Head drive ground -
11, 12 HVH_16V Head drive power 16V OUT
13 to 16 HVH_24V Head drive power 24V OUT
17 LOGIC_GND Logic ground -
18 HVDD_3.3V Head logic power 3.3V OUT
19 LOGIC_GND Logic ground -
20 HVDD_3.3V Head logic power 3.3V OUT
No. Signal name Function Input / Output
3-4