Canon BJ-W9000, Service Manual

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J809
Pin No. Signal IN/OUT Function
20 DSCY-2A IN Diode sensor signal (D head, A nozzle, A side)
21 HE-4B OUT Heat-enable signal (D head, B nozzle line)
22 D4-BE OUT Nozzle data signal (D head, B nozzle line, even
nozzles)
23 DSUC-2B IN Diode sensor signal (D head, B nozzle, B side)
24 GND –– GND
25 GND –– GND
26 GND –– GND
27 GND –– GND
28 GND –– GND
29 GND –– GND
30 GND –– GND
31 GND –– GND
32 GND –– GND
33 GND –– GND
34 SRCLK-4H OUT Clock signal for nozzle data (D head)
35 D4-BO OUT Nozzle data signal (D head, B nozzle line, odd
nozzles)
36 SHE-4B OUT Sub heat enable signal (D head, B nozzle line)
37 RANK-UC2 IN Head rank signal (D head, B nozzle line)
38 +5U OUT Power supply for head logic (5V)
39 +5U OUT Power supply for head logic (5V)
40 DSUC-2A IN Diode sensor signal (D head, B nozzle, A side)
41 HE-4C OUT Heat-enable signal (C head, C nozzle line)
42 NC –– NC
43 DSBK-2B IN Diode sensor signal (D head, C nozzle, B side)
44 D4-CE OUT Nozzle data signal (D head, C nozzle line, even
nozzles)
45 SHE-4C OUT Sub heat enable signal (D head, C nozzle line)
46 D4-CO OUT Nozzle data signal (D head, C nozzle line, odd
nozzles)
47 BE4H-3 OUT Block-enable signal (D head, bit 3)
48 BE4H-2 OUT Block-enable signal (D head, bit 2)
49 DSBK-2A IN Diode sensor signal (D head, C nozzle, A side)
50 RANK-BK2 IN Head rank signal (D head, C nozzle line)
J810
Pin No. Signal IN/OUT Function
1 VH OUT Power supply for the head drive (10.3V)
2 REF-4.1V OUT Standard power supply for the register sensor
amplifier (4.1V)
3 CR-REG IN Carriage running system register sensor
amplifier signal
4 LF-REG IN Paper feeding system register sensor amplifier signal
5 LED-B OUT Blue LED drive signal (3-colored LED cathode)
6 LED-G OUT Green LED drive signal (3-colored LED
cathode)
7 LED-R OUT Red LED drive signal (3-colored LED cathode)
8 LED-COM OUT Three-colored LED common signal (Anode)
9 GND –– GND
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BJ-W9000 Part 5: Maintenance