Epson C40UX service manual Connector Summary, Major Component Unit

Stylus C40UX/C40SX/C20UX/C20SX Revision A

7.1 Connector Summary

7.1.1 Major Component Unit

The Major component units of this printer are as follows.

†Main Board (C413MAIN or C413MAIN-B)

†Power Supply Board (C417/PSE)

The figure below shows how these components connect.

Table 7-1. Connector Summary for C413MAIN/B

Connector	Function	Table to refer to
CN9	For connection with the Print Head	Table 7-5
CN2	For connection with the Power supply board	Table 7-6
CN1	For connection with the parallel interface	Refer to “IEEE-1284
		Parallel Interface
		(Forward Channel)”
CN3	For connection with the USB interface	Refer to “1.3.1 USB
		INterface”

C417PSB/PSE

CN2

AC Power

	C413MAIN/B		Parallel I/F
CN2		CN1
			(C413MAIN)
		CN3	USB I/F

(C413MAIN-B)

CN9 CN12 CN7 CN4

Print Head		PF Motor
	CR Motor		HP/PE/IC

Printer Mechanism

Table 7-2. CN4-HP/PE/IC Sensor

Pin	Signal Name	I/O	Function
1	SIG	In	Sensor detect signal
2	GND	---	Ground
3	VCC	---	Sensor Power Supply

Table 7-3. CN12-CR Monitor

Pin	Signal Name	I/O	Function
1	CRA	Out	Phase drive signal (A)
2	CRB	Out	Phase drive signal (B)
3	CR-A	Out	Phase drive signal (-A)

Figure 7-1. Connection of the Major Components

See the following tables for the connector summary for the C413MAIN/B board and each connector’s pin alignment.

Table 7-1. Connector Summary for C413MAIN/B

Connector	Function	Table to refer to
CN4	For connection with the HP/PE/IC/sensor	Table 7-2
CN12	For connection with the CR motor	Table 7-3
CN7	For connection with the PF motor	Table 7-4

4 CR-B Out Phase drive signal (-B)

Table 7-4. CN3-PF Motor

Pin	Signal Name	I/O	Function
1	PFA	Out	Phase drive signal (A)
2	PFB	Out	Phase drive signal (B)
3	PF-A	Out	Phase drive signal (-A)
4	PF-B	Out	Phase drive signal (-B)

Appendix Connector Summary 100