Carriage Board (Print Head Connector) - Canon i960 Service Manual

2-2. Carriage board (print head connection terminals)
No.41
No.1
No.
1, 2 GND_H
3 DATAC
4 DATALC
5 DATAK
6 DATAY
7 DATALM
8 to 13 GND_H
14 TSOCLC
15 BG
16 HDSEN
17 HCLK
18 DATAM
19,20 GND_H
21 HEKX
22 HELCX
23 HECX
24 VDD
25 VSS
26 VSS-A
27 VDD-A
28 HEMX
29 HELMX
30 HEYX
31 to 33 VH
34 VDD
35 DHE
36 VSS
37 TSOCLC
38 TSOLMM
39 to 42 VH
43 E_CS
44 E_SK
45 E_DI
46 EEPROM_DO
47 VHT
48 to 50 VH
Signal name
Head GND
Head data C
Head data LC
Head data BK
Head data Y
Head data LM
Head GND
Status output C, LC
Transmission clock clutch signal
Head presence detection signal
Head transmission clock
Head data M
Head GND
Head enable BK
Head enable LC
Head enable C
Head logic drive power supply 3.3V
Logic GND
Logic GND
Head logic drive power supply 3.3V
Head enable M
Head enable LM
Head enable Y
Head drive power 16V
Head logic drive power supply 3.3V
Head enable dummy nozzle
Logic GND
Status output C, LC
Status output LM, M
Head drive power 16V
Head EEPROM chip select signal
Head EEPROM serial clock signal
Head EEPROM data signal
Head EEPROM data signal
Head drive power 16V (short-circuiting with VH on
the logic board)
Head drive power 16V
Function
3 - 6
No.50
No.10
Input/Output
-
Out
Out
Out
Out
Out
-
Out
Out
In
Out
Out
-
Out
Out
Out
Out
-
-
Out
Out
Out
Out
Out
Out
Out
-
Out
Out
Out
Out
Out
In
Out
Out
Out