Canon iP100 Technical Reference page 18

CN203 (to PC)
No Signal name
1 VBUS
2 D-
3 D+
4 S-GND
5 F-GND
6 F-GND
7 F-GND
8 F-GND
CN301 (to Carriage PWB J3)
No Signal name
1 VSS
2 CH_B
3 VSS
4 CH_A
5 B_DIA
6 A_DIA
7 VSS
8 E_DIO
9 E_CS
10 E_SK
11 DATA_BK_OD
12 VSEN_3.3V
13 HCLK
14 VSS
15 HLATCH
16 A_HE
17 DATA_BK_EV
18 AB_DATA
19 AB_POW
20 AB_CLK
21 TH
CN302 (to Carriage PWB J1)
No Signal name
1 DATA_C1N_OD(3)
2 DATA_C1N_EV(1)
3 DATA_C5N_OD
4 DATA_C5N_EV
5 VSS
6 VSEN_REG
7 SNS_REG
8 DATA_M5N_EV
9 DATA_C5N_OD
10 DATA_M1N_EV(1)
11 DATA_M1N_OD(3)
12 VSS
13 DATA_Y_EV
14 DATA_Y_OD
15 DATA_PK_EV(5)
16 DATA_PK_OD(3)
17 B-HA1
18 HVDD_3.3V
19 B-HE2
20 B-HE3(1P HE4)
21 B-HE4(2P HE3)
Function
VBUS power supply
D- signal
D+ signal
signal GND
Frame GND
Frame GND
Frame GND
Frame GND
Function
Head logic ground
Carriage encoder phase B
Head logic ground
Carriage encoder phase A
Head Temperature sensor anode B
Head Temperature sensor anode A
Head logic ground
Head EEPROM data input/output
Head EEPROM chip select
Head EEPROM serial clock
BK serial data(odd)
Power supply for sensor 3.3V
Head data transfer clock
Head logic ground
Head data latch signal
Heat Enable A
BK serial data(even)
AB DATA signal
AB power supply
AB clock signal
Thermistor output
Function
C1N serial data (odd)
C1N serial data (even)
C5N serial data (odd)
C5N serial data (even)
Head logic ground
REGI sensor power supply
REGI sensor
M5N serial data (even)
C5N serial data (odd)
M1N serial data (even)
M1N serial data (odd)
Head logic ground
Y serial data (even)
Y serial data (odd)
PK serial data (even)
PK serial data (odd)
Hear Enable 1
Head logic drive power supply 3.3V
Head Enable 2
Head Enable 3
Head Enable 4
(18/22)
Input/Output
IN
BUS
BUS
-
-
-
-
-
Input/Output
-
IN
-
IN
IN
IN
-
BUS
OUT
OUT
OUT
OUT
OUT
-
OUT
OUT
OUT
BUS
OUT
OUT
OUT
Input/Output
OUT
OUT
OUT
OUT
-
OUT
IN
OUT
OUT
OUT
OUT
-
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT