Canon W8400 Series, Service Manual, Page: 181 / 224

Chapter 6
6-31
T-6-25
T-6-26
36 GND GND
37 LM_HENB* IN LM heat enable signal
38 GND GND
39 C_HENB* IN C heat enable signal
40 GND GND
41 M_HENB* IN M heat enable signal
42 GND GND
43 Y_HENB* IN Y heat enable signal
44 GND GND
45 DCDC_OVP_I* OUT VH overvotage detection siganal
46 HEADEEPRD_I OUT Head EEPROM write data signal
47 HDCVR_I OUT Head cover sensor signal
48 CRENCB_I OUT Carriage encoder output signal B phase
49 CRENCA_I OUT Carriage encoder output signal A phase
50 GND GND
J303
Pin
number
Signal name IN/OUT Function
1 LED1 OUT LED drive signal 1
2 LED2 OUT LED drive signal 2
3 LED3 OUT LED drive signal 3
4 Common K OUT Cathode common
5 GND - GND
6 Sensor Out IN Sensor input signal
7 +5R OUT Power supply (+5.1V)
J304
Pin
number
Signal name IN/OUT Function
1 GND - GND
2 O_DATA_LM0 OUT LM even nozzle data 0
3 O_DATA_LM1 OUT LM even nozzle data 1
4 E_DATA_LM0 OUT LM odd nozzle data 0
5 E_DATA_LM1 OUT LM odd nozzle data 1
6 O_DATA_LC0 OUT LC even nozzle data 0
7 O_DATA_LC1 OUT LC even nozzle data 1
8 E_DATA_LC0 OUT LC odd nozzle data 0
9 E_DATA_LC1 OUT LC odd nozzle data 1
10 O_DATA_BK0 OUT BK even nozzle data 0
11 O_DATA_BK1 OUT BK even nozzle data 1
12 E_DATA_BK0 OUT BK odd nozzle data 0
13 E_DATA_BK1 OUT BK odd nozzle data 1
14 GND - GND
15 O_DATA_Y0 OUT Y even nozzle data 0
16 O_DATA_Y1 OUT Y even nozzle data 1
17 GND - GND
18 E_DATA_Y0 OUT Y odd nozzle data 0
19 E_DATA_Y1 OUT Y odd nozzle data 1
20 O_DATA_M0 OUT M even nozzle data 0
21 O_DATA_M1 OUT M even nozzle data 1
22 E_DATA_M0 OUT M odd nozzle data 0
23 E_DATA_M1 OUT M odd nozzle data 1
24 O_DATA_C0 OUT C even nozzle data 0
25 O_DATA_C1 OUT C even nozzle data 1
26 E_DATA_C0 OUT C odd nozzle data 0
J302
Pin
number
Signal name IN/OUT Function