Epson C40UX service manual Disconnecting the connectors, Removing the Main board

Stylus C40UX/C40SX/C20UX/C20SX Revision A

6.Disconnect the four connectors (CN9, CN4, CN7, CN12).

CN9

CN4

CN7

8.Lift the MAIN board up and remove it.

Tightening Torque for screw

„	USB Type
	- C.B.S 3x6 screw	: 9+/-1 kgf.cm
	- C.B.S 3x8 screw	: 9+/-1 kgf.cm
„	Parallel Type
	- C.B.S 3x6 screw	: 9+/-1 kgf.cm
	- C.P.F.S-Tite 3x12 screw	: 9+/-1 kgf.cm
	- C.B.S 3x8 screw	: 9+/-1 kgf.cm

CN12

Figure 4-21. Disconnecting the connectors

7.Take out the 1 screw.

CBS 3⋅ 8

Figure 4-22. Removing the MAIN board

ADJUSTMENT REQUIRED

When replacing the Main board with a new one, perform the following service items.

„Before removing the Main Board, connect the parallel cable or USB cable and try to read out the following data by using the Adjustment program. If this operation succeeds, replace the Main board and write the read out data to the new Main board through the Adjustment program. (Refer to Section 5.1.14)

1)I/C Ink consumption counter.

2)Waste ink drain pad counter.

3)EEPROM Initial setting

4)Head ID input

5)Top margin adjustment

6)Bi-D adjustment

In case the above mentioned data are not able to be read out from the defective Main board, perform the following service items.

„Replace the both ink cartridges with a brand new one.

„Replace the Waste ink pad with a new one.

„Reset the Ink pad counter

„Input the EEPROM initial setting value

„Input the Head ID

„Adjust the Top margin

„Adjust the Bi-D alignment.

Disassembly and Assembly

Disassembly 69