Canon WS8400 Service Manual page 189

Pin Signal name IN/OUT
number
4 E_DTLM1 IN
5 E_DTLC1 IN
6 O_DTLM2 IN
7, 8 GND -
9 E_DTC1 IN
10 E_DTC2 IN
11 O_DTC2 IN
12, 13, 14, HGND -
15
16 SHE_LC IN
17 O_DTLC1 IN
18 SHE_BK IN
19 SHE_LM IN
20 HE_LM IN
21 GND -
22 E_DTM2 IN
23 LTH IN
24, 25 HGND -
26 VHFBG -
27 DIALC0 OUT
28 DIAK0 OUT
29 DIAK0 OUT
30 O_DTBK1 IN
31 HE_LC IN
32 DIALM1 OUT
33 SHE_M IN
34 HE_Y IN
35 DIAM1 OUT
36 E_DTY2 IN
37 O_DTM2 IN
38 DIAY0 OUT
39 E_DTY1 IN
40 O_DTBK1 IN
41 E_DTBK1 IN
42 E_DTLC2 IN
43 HE_BK IN
44 DIALM0 OUT
45 DIAC0 OUT
46 HSCLK IN
47 HE_M IN
48 DIAY1 OUT
49 O_DTY2 IN
50 O_DTY1 IN
51 O_DTM1 IN
52 DIAM0 OUT
53 VHFBH -
54 VH IN
55 E_DTBK2 IN
56 O_DTLC2 IN
57 O_DTLM2 IN
58 H5V IN
59 EPCE IN
60 SHE_C IN
61 EPDO OUT
62 E_DTM1 IN
63 O_DTC1 IN
64, 65, 66, VH IN
67
68 VHT IN
69 DIALC1 OUT
70 O_DTLM1 IN
Function
Nozzle data signal (M nozzle array/even nozzle)
Nozzle data signal (C nozzle array/even nozzle)
Nozzle data signal (M nozzle array/odd nozzle)
GND
Nozzle data signal (C nozzle array/even nozzle)
Nozzle data signal (C nozzle array/even nozzle)
Nozzle data signal (C nozzle array/odd nozzle)
GND
Sub heat enable signal (PC nozzle array)
Nozzle data signal (PC nozzle array/odd nozzle)
Sub heat enable signal (Bk nozzle array)
Sub heat enable signal (PM nozzle array)
Heat enable signal (PM nozzle array)
GND
Nozzle data signal (M nozzle array/even nozzle)
Data latch signal
GND
NC
DI sensor signal (PC nozzle array)
DI sensor signal (Bk nozzle array)
DI sensor signal (Bk nozzle array)
Nozzle data signal (Bk nozzle array/odd nozzle)
Heat enable signal (PC nozzle array)
DI sensor signal (PM nozzle array)
Sub heat enable signal (M nozzle array)
Heat enable signal (Y nozzle array)
DI sensor signal (M nozzle array)
Nozzle data signal (Y nozzle array/odd nozzle)
Nozzle data signal (M nozzle array/even nozzle)
DI sensor signal (Y nozzle array)
Nozzle data signal (Y nozzle array/even nozzle)
Nozzle data signal (Bk nozzle array/odd nozzle)
Nozzle data signal (Bk nozzle array/even nozzle)
Nozzle data signal (C nozzle array/even nozzle)
Heat enable signal (Bk nozzle array)
DI sensor signal (PM nozzle array)
DI sensor signal (C nozzle array)
Synchronous clock signal
Heat enable signal (M nozzle array)
DI sensor signal (Y nozzle array)
Nozzle data signal (Y nozzle array/odd nozzle)
Nozzle data signal (Y nozzle array/odd nozzle)
Nozzle data signal (M nozzle array/odd nozzle)
DI sensor signal (M nozzle array)
NC
Head drive power supply
Nozzle data signal (Bk nozzle array/even nozzle)
Nozzle data signal (C nozzle array/odd nozzle)
Nozzle data signal (PM nozzle array/odd nozzle)
Head logic power supply (5.1 V)
Head EEPROM chip select signal
Sub heat enable signal (C nozzle array)
Head EEPROM read data signal
Nozzle data signal (M nozzle array/even nozzle)
Nozzle data signal (C nozzle array/odd nozzle)
Head drive power supply
Power transistor drive power supply
DI sensor signal (PC nozzle array)
Nozzle data signal (PM nozzle array/odd nozzle)
Chapter 6
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