Canon PIXMA MP170, Service Manual

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CN302 (Print head 2/2 [Carriage unit])
CN401 (Power supply)
CN402 (PictBridge)
CN403 (USB 2.0)
No. Signal name Function
1 DIA Diode sensor anode side
2, 5, 8, 10,
12, 14
SGND Ground
3 A_HE0 Heat enable
4 A_CNO
Head contact detection signal (CL)
6 DATA_EVEN Even nozzle data
7 DATA_ODD Odd nozzle data
9 HCLK
Head clock
11 ID2 Head ID
13 TH
Thermistor signal
15 ENC_OUT1
Encoder signal
16 ENC_OUT0 Encoder signal
17 ENC_PWR Encoder 3.3V
18 HVDD
Head logic power upply
19 HLAT Latch signal
20 B_HE1 Heat enable
No. Signal name Function
1 VM 24V power supply output
2 PW_CONT Power control signal
3 GND Ground
No. Signal name Function
1 F-GND Frame ground
2 S-GND Signal ground
3 D+ D+ signal
4 D- D- signal
5 VBUS VBUS signal
No. Signal name Function
1 SNS_USB VBUS power supply detection signal
2 D- D- signal
3 D+ D+ signal
4 to 8 GND Frame ground
3-4