Canon iPF780 Series Service Manual page 96

J3301 (Ink detection sensor (L), Ink supply valve open/closed detection sensor (L), Ink tank cover switch (L))
Pin Number Signal name
10 TANK_CLK
11 SNS3V_FU1
12 GND
13 SUPPLY_BEN_L_SNS*
14 TANK_COVER_SW_L*
15 GND
J3303 (Connect to Maintenance cartridge relay PCB)
Pin Number Signal name
1 MENT_ROM_SDA
2 MENT_ROM_SCL
3 GND
4 +3.3V_TANK
J3401 (Connect to Carriage PCB J201)
Pin Number Signal name
1 VHGND
2 VHGND
3 VHGND
4 VHGND
5 GND
6 +5V_VM_IC
7 21V_H1_VHT
8 VH_SW1_ON
9 +3.3V_H1
10 +3.3V_H1
11 GND
12 SNS5V
13 +24V_HV_SW
14 VH
15 VH
16 VH
17 VH
18 VH
19 VH
20 VH
21 VH
22 VHGND
23 VHGND
24 VHGND
25 VHGND
J3601 (Connect to Carriage PCB J101)
Pin Number Signal name
1 FFC_SLANT_DET_SNS2*
2 COLOR_SNS
3 GND
4 GAP_NEAR_SNS
5 GAP_FAR_SNS
6 VH_DIS
7 GND
8 ENCODER_A
9 ENCODER_B
10 GND
11 H1-B-DATA-3-EV
12 GND
13 H1-B-HE-3*
14 GND
15 H1-C-DATA-4-EV
16 GND
17 H1-C-DATA-5-EV
IN/OUT
OUT Ink tank clock signal
OUT Power supply (+3.3V)
- GND
IN Ink supply valve open/closed detection sensor (L) output signal
IN Ink tank cover switch (L) output signal
- GND
T-2-11
IN/OUT
IN/OUT Maintenance cartridge rom control signal (data)
IN/OUT Maintenance cartridge rom control signal (clock)
- GND
OUT Power supply (+3.3V)
T-2-12
IN/OUT
- GND
- GND
- GND
- GND
- GND
OUT Power supply (+5V)
OUT Power supply (+21V)
OUT VH control signal
OUT Power supply (+3.3V)
OUT Power supply (+3.3V)
- GND
OUT Power supply (+5V)
OUT Power supply (+24V)
OUT Power supply (+21.5V)
OUT Power supply (+21.5V)
OUT Power supply (+21.5V)
OUT Power supply (+21.5V)
OUT Power supply (+21.5V)
OUT Power supply (+21.5V)
OUT Power supply (+21.5V)
OUT Power supply (+21.5V)
- GND
- GND
- GND
- GND
T-2-13
IN/OUT
IN FFC disconnection detection signal 2
IN Multi sensor density detection signal
- GND
IN Multi sensor head height (NEAR) detection signal
IN Multi sensor head height (FAR) detection signal
OUT VH select signal
- GND
IN Carriage encoder output signal A
IN Carriage encoder output signal B
- GND
OUT Even head data signal 3(B)
- GND
OUT Head heat enable signal 3(B)
- GND
OUT Even head data signal 4(C)
- GND
OUT Even head data signal 5(C)
Function
Function
Function
Function
Chapter 2
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