Canon i960 Series, Service Manual

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